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handle invalid escape sequence passed to strmatch operator - #8

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brenosilva merged 1 commit into
owasp-modsecurity:remotes/trunkfrom
hideaki:strmatch_coredump
Nov 9, 2012
Merged

brenosilva merged 1 commit into
owasp-modsecurity:remotes/trunkfrom
hideaki:strmatch_coredump

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@hideaki

@hideaki hideaki commented Nov 8, 2012

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This is fix for a coredump that happens at startup time when @strmatch operator has invalid escape sequence like following.

SecRule ARGS:value "@strmatch 89\xb6xagxga\x0a3" "phase:1,log,deny"

I'm handling the case where parse_pm_content returns NULL because of error
conditions like broken escape sequence or insufficient memory etc.

After this patch, error that looks like following is printed at startup instead of segmentation fault.

Syntax error on line 2 of /scratch/hihayash/conf/modsec.conf:
Error creating rule: Unsupported escape sequence.

brenosilva added a commit that referenced this pull request Nov 9, 2012
handle invalid escape sequence passed to strmatch operator
@brenosilva
brenosilva merged commit b31f83b into owasp-modsecurity:remotes/trunk Nov 9, 2012
@pbesedm pbesedm mentioned this pull request May 8, 2015
@pbesedm pbesedm mentioned this pull request Mar 12, 2016
@wergoth wergoth mentioned this pull request Jul 25, 2017
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2 participants