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Reject embedded NUL in SimpleXMLElement path/URL constructor - #23069
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iliaal wants to merge 1 commit into
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Reject embedded NUL in SimpleXMLElement path/URL constructor#23069iliaal wants to merge 1 commit into
iliaal wants to merge 1 commit into
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When dataIsURL is true, __construct parsed the path as a plain string and passed it to xmlReadFile, so an embedded NUL truncated the path. simplexml_load_file already rejects NULs via the path parameter type. Match that check before xmlReadFile. ClosesphpGH-23069
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should target master (thus no more CHECK_NULL_PATH) |
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With dataIsURL set, SimpleXMLElement::__construct hands its first argument to xmlReadFile as a C string, so
new SimpleXMLElement("/tmp/ok.xml\0anything", 0, true)quietly loads /tmp/ok.xml. simplexml_load_file already rejects this because its filename parameter is declared as a path; the constructor takes a plain string and never runs the check. The constructor now throws the same ValueError before reaching xmlReadFile.