This repository was archived by the owner on Oct 13, 2023. It is now read-only.

[19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664) - #254

Merged
andrewhsu merged 2 commits into
docker-archive:19.03from
thaJeztah:19.03_backport_root_dir_on_copy
Jun 4, 2019
Merged

[19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)#254
andrewhsu merged 2 commits into
docker-archive:19.03from
thaJeztah:19.03_backport_root_dir_on_copy

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backport of moby#39292 for 19.03

This is useful for preventing CVE-2018-15664 where a malicious container
process can take advantage of a race on symlink resolution/sanitization.

Before this change chrootarchive would chroot to the destination
directory which is attacker controlled. With this patch we always chroot
to the container's root which is not attacker controlled.

replaces moby#39252

This is useful for preventing CVE-2018-15664 where a malicious container
process can take advantage of a race on symlink resolution/sanitization.
Before this change chrootarchive would chroot to the destination
directory which is attacker controlled. With this patch we always chroot
to the container's root which is not attacker controlled.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit d089b63)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Previously only unpack operations were supported with chroot.
This adds chroot support for packing operations.
This prevents potential breakouts when copying data from a container.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit 3029e76)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
@thaJeztahthaJeztah added this to the 19.03.0 milestone Jun 3, 2019
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ping @cpuguy83@justincormack PTAL

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LGTM once upstream is merged.

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yes, opened in advance of that so that CI can run already; let me change to "WIP"

@thaJeztahthaJeztah changed the title [19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)[WIP][19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)Jun 3, 2019
@thaJeztahthaJeztah changed the title [WIP][19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)[19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)Jun 4, 2019
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removed "WIP" as upstream was merged

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LGTM on clean cherry-pick

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
Skip to content
This repository was archived by the owner on Oct 13, 2023. It is now read-only.

[19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664) - #254

Merged
andrewhsu merged 2 commits into
docker-archive:19.03from
thaJeztah:19.03_backport_root_dir_on_copy
Jun 4, 2019
Merged

[19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)#254
andrewhsu merged 2 commits into
docker-archive:19.03from
thaJeztah:19.03_backport_root_dir_on_copy

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@thaJeztah

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backport of moby#39292 for 19.03

This is useful for preventing CVE-2018-15664 where a malicious container
process can take advantage of a race on symlink resolution/sanitization.

Before this change chrootarchive would chroot to the destination
directory which is attacker controlled. With this patch we always chroot
to the container's root which is not attacker controlled.

replaces moby#39252

This is useful for preventing CVE-2018-15664 where a malicious container
process can take advantage of a race on symlink resolution/sanitization.
Before this change chrootarchive would chroot to the destination
directory which is attacker controlled. With this patch we always chroot
to the container's root which is not attacker controlled.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit d089b63)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Previously only unpack operations were supported with chroot.
This adds chroot support for packing operations.
This prevents potential breakouts when copying data from a container.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit 3029e76)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
@thaJeztahthaJeztah added this to the 19.03.0 milestone Jun 3, 2019
@thaJeztah

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ping @cpuguy83@justincormack PTAL

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LGTM once upstream is merged.

@thaJeztah

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yes, opened in advance of that so that CI can run already; let me change to "WIP"

@thaJeztahthaJeztah changed the title [19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)[WIP][19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)Jun 3, 2019
@thaJeztahthaJeztah changed the title [WIP][19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)[19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)Jun 4, 2019
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removed "WIP" as upstream was merged

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LGTM on clean cherry-pick

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@thaJeztah@andrewhsu@cpuguy83
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix"); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content
This repository was archived by the owner on Oct 13, 2023. It is now read-only.

[19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664) - #254

Merged
andrewhsu merged 2 commits into
docker-archive:19.03from
thaJeztah:19.03_backport_root_dir_on_copy
Jun 4, 2019
Merged

[19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)#254
andrewhsu merged 2 commits into
docker-archive:19.03from
thaJeztah:19.03_backport_root_dir_on_copy

Conversation

@thaJeztah

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backport of moby#39292 for 19.03

This is useful for preventing CVE-2018-15664 where a malicious container
process can take advantage of a race on symlink resolution/sanitization.

Before this change chrootarchive would chroot to the destination
directory which is attacker controlled. With this patch we always chroot
to the container's root which is not attacker controlled.

replaces moby#39252

This is useful for preventing CVE-2018-15664 where a malicious container
process can take advantage of a race on symlink resolution/sanitization.
Before this change chrootarchive would chroot to the destination
directory which is attacker controlled. With this patch we always chroot
to the container's root which is not attacker controlled.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit d089b63)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Previously only unpack operations were supported with chroot.
This adds chroot support for packing operations.
This prevents potential breakouts when copying data from a container.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit 3029e76)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
@thaJeztahthaJeztah added this to the 19.03.0 milestone Jun 3, 2019
@thaJeztah

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ping @cpuguy83@justincormack PTAL

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LGTM once upstream is merged.

@thaJeztah

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yes, opened in advance of that so that CI can run already; let me change to "WIP"

@thaJeztahthaJeztah changed the title [19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)[WIP][19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)Jun 3, 2019
@thaJeztahthaJeztah changed the title [WIP][19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)[19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)Jun 4, 2019
@thaJeztah

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removed "WIP" as upstream was merged

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LGTM on clean cherry-pick

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@thaJeztah@andrewhsu@cpuguy83
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms"); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content
This repository was archived by the owner on Oct 13, 2023. It is now read-only.

[19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664) - #254

Merged
andrewhsu merged 2 commits into
docker-archive:19.03from
thaJeztah:19.03_backport_root_dir_on_copy
Jun 4, 2019
Merged

[19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)#254
andrewhsu merged 2 commits into
docker-archive:19.03from
thaJeztah:19.03_backport_root_dir_on_copy

Conversation

@thaJeztah

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backport of moby#39292 for 19.03

This is useful for preventing CVE-2018-15664 where a malicious container
process can take advantage of a race on symlink resolution/sanitization.

Before this change chrootarchive would chroot to the destination
directory which is attacker controlled. With this patch we always chroot
to the container's root which is not attacker controlled.

replaces moby#39252

This is useful for preventing CVE-2018-15664 where a malicious container
process can take advantage of a race on symlink resolution/sanitization.
Before this change chrootarchive would chroot to the destination
directory which is attacker controlled. With this patch we always chroot
to the container's root which is not attacker controlled.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit d089b63)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Previously only unpack operations were supported with chroot.
This adds chroot support for packing operations.
This prevents potential breakouts when copying data from a container.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit 3029e76)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
@thaJeztahthaJeztah added this to the 19.03.0 milestone Jun 3, 2019
@thaJeztah

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ping @cpuguy83@justincormack PTAL

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LGTM once upstream is merged.

@thaJeztah

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yes, opened in advance of that so that CI can run already; let me change to "WIP"

@thaJeztahthaJeztah changed the title [19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)[WIP][19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)Jun 3, 2019
@thaJeztahthaJeztah changed the title [WIP][19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)[19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)Jun 4, 2019
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removed "WIP" as upstream was merged

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LGTM on clean cherry-pick

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@thaJeztah@andrewhsu@cpuguy83
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links"); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + '
Skip to content
This repository was archived by the owner on Oct 13, 2023. It is now read-only.

[19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664) - #254

Merged
andrewhsu merged 2 commits into
docker-archive:19.03from
thaJeztah:19.03_backport_root_dir_on_copy
Jun 4, 2019
Merged

[19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)#254
andrewhsu merged 2 commits into
docker-archive:19.03from
thaJeztah:19.03_backport_root_dir_on_copy

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@thaJeztah

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backport of moby#39292 for 19.03

This is useful for preventing CVE-2018-15664 where a malicious container
process can take advantage of a race on symlink resolution/sanitization.

Before this change chrootarchive would chroot to the destination
directory which is attacker controlled. With this patch we always chroot
to the container's root which is not attacker controlled.

replaces moby#39252

This is useful for preventing CVE-2018-15664 where a malicious container
process can take advantage of a race on symlink resolution/sanitization.
Before this change chrootarchive would chroot to the destination
directory which is attacker controlled. With this patch we always chroot
to the container's root which is not attacker controlled.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit d089b63)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Previously only unpack operations were supported with chroot.
This adds chroot support for packing operations.
This prevents potential breakouts when copying data from a container.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit 3029e76)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
@thaJeztahthaJeztah added this to the 19.03.0 milestone Jun 3, 2019
@thaJeztah

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ping @cpuguy83@justincormack PTAL

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LGTM once upstream is merged.

@thaJeztah

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yes, opened in advance of that so that CI can run already; let me change to "WIP"

@thaJeztahthaJeztah changed the title [19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)[WIP][19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)Jun 3, 2019
@thaJeztahthaJeztah changed the title [WIP][19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)[19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)Jun 4, 2019
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removed "WIP" as upstream was merged

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LGTM on clean cherry-pick

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@thaJeztah@andrewhsu@cpuguy83
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default"); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content
This repository was archived by the owner on Oct 13, 2023. It is now read-only.

[19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664) - #254

Merged
andrewhsu merged 2 commits into
docker-archive:19.03from
thaJeztah:19.03_backport_root_dir_on_copy
Jun 4, 2019
Merged

[19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)#254
andrewhsu merged 2 commits into
docker-archive:19.03from
thaJeztah:19.03_backport_root_dir_on_copy

Conversation

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backport of moby#39292 for 19.03

This is useful for preventing CVE-2018-15664 where a malicious container
process can take advantage of a race on symlink resolution/sanitization.

Before this change chrootarchive would chroot to the destination
directory which is attacker controlled. With this patch we always chroot
to the container's root which is not attacker controlled.

replaces moby#39252

This is useful for preventing CVE-2018-15664 where a malicious container
process can take advantage of a race on symlink resolution/sanitization.
Before this change chrootarchive would chroot to the destination
directory which is attacker controlled. With this patch we always chroot
to the container's root which is not attacker controlled.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit d089b63)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Previously only unpack operations were supported with chroot.
This adds chroot support for packing operations.
This prevents potential breakouts when copying data from a container.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit 3029e76)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
@thaJeztahthaJeztah added this to the 19.03.0 milestone Jun 3, 2019
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ping @cpuguy83@justincormack PTAL

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LGTM once upstream is merged.

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yes, opened in advance of that so that CI can run already; let me change to "WIP"

@thaJeztahthaJeztah changed the title [19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)[WIP][19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)Jun 3, 2019
@thaJeztahthaJeztah changed the title [WIP][19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)[19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)Jun 4, 2019
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removed "WIP" as upstream was merged

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LGTM on clean cherry-pick

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers"); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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This repository was archived by the owner on Oct 13, 2023. It is now read-only.

[19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664) - #254

Merged
andrewhsu merged 2 commits into
docker-archive:19.03from
thaJeztah:19.03_backport_root_dir_on_copy
Jun 4, 2019
Merged

[19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)#254
andrewhsu merged 2 commits into
docker-archive:19.03from
thaJeztah:19.03_backport_root_dir_on_copy

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@thaJeztah

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backport of moby#39292 for 19.03

This is useful for preventing CVE-2018-15664 where a malicious container
process can take advantage of a race on symlink resolution/sanitization.

Before this change chrootarchive would chroot to the destination
directory which is attacker controlled. With this patch we always chroot
to the container's root which is not attacker controlled.

replaces moby#39252

This is useful for preventing CVE-2018-15664 where a malicious container
process can take advantage of a race on symlink resolution/sanitization.
Before this change chrootarchive would chroot to the destination
directory which is attacker controlled. With this patch we always chroot
to the container's root which is not attacker controlled.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit d089b63)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Previously only unpack operations were supported with chroot.
This adds chroot support for packing operations.
This prevents potential breakouts when copying data from a container.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit 3029e76)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
@thaJeztahthaJeztah added this to the 19.03.0 milestone Jun 3, 2019
@thaJeztah

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ping @cpuguy83@justincormack PTAL

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LGTM once upstream is merged.

@thaJeztah

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yes, opened in advance of that so that CI can run already; let me change to "WIP"

@thaJeztahthaJeztah changed the title [19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)[WIP][19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)Jun 3, 2019
@thaJeztahthaJeztah changed the title [WIP][19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)[19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)Jun 4, 2019
@thaJeztah

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removed "WIP" as upstream was merged

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LGTM on clean cherry-pick

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@thaJeztah@andrewhsu@cpuguy83
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode"); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })();
Skip to content
This repository was archived by the owner on Oct 13, 2023. It is now read-only.

[19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664) - #254

Merged
andrewhsu merged 2 commits into
docker-archive:19.03from
thaJeztah:19.03_backport_root_dir_on_copy
Jun 4, 2019
Merged

[19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)#254
andrewhsu merged 2 commits into
docker-archive:19.03from
thaJeztah:19.03_backport_root_dir_on_copy

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@thaJeztah

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backport of moby#39292 for 19.03

This is useful for preventing CVE-2018-15664 where a malicious container
process can take advantage of a race on symlink resolution/sanitization.

Before this change chrootarchive would chroot to the destination
directory which is attacker controlled. With this patch we always chroot
to the container's root which is not attacker controlled.

replaces moby#39252

This is useful for preventing CVE-2018-15664 where a malicious container
process can take advantage of a race on symlink resolution/sanitization.
Before this change chrootarchive would chroot to the destination
directory which is attacker controlled. With this patch we always chroot
to the container's root which is not attacker controlled.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit d089b63)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Previously only unpack operations were supported with chroot.
This adds chroot support for packing operations.
This prevents potential breakouts when copying data from a container.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit 3029e76)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
@thaJeztahthaJeztah added this to the 19.03.0 milestone Jun 3, 2019
@thaJeztah

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ping @cpuguy83@justincormack PTAL

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LGTM once upstream is merged.

@thaJeztah

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yes, opened in advance of that so that CI can run already; let me change to "WIP"

@thaJeztahthaJeztah changed the title [19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)[WIP][19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)Jun 3, 2019
@thaJeztahthaJeztah changed the title [WIP][19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)[19.03 backport] Pass root to chroot to for chroot Tar/Untar (CVE-2018-15664)Jun 4, 2019
@thaJeztah

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removed "WIP" as upstream was merged

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LGTM on clean cherry-pick

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@thaJeztah@andrewhsu@cpuguy83