MGASA-2017-0454

Dashboard / Vulnerabilities / MGASA-2017-0454

MGASA-2017-0454

Summary: Updated pcre packages fix security vulnerabilities

Details: The compile_bracket_matchingpath function in pcre_jit_compile.c in PCRE through 8.x before revision 1680 (e.g., the PHP 7.1.1 bundled version) allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted regular expression (CVE-2017-6004). A vulnerability was found in pcre caused by trying to find a Unicode property for a code value greater than 0x10ffff, the Unicode maximum, when running in non-UTF mode (where character values can be up to 0xffffffff) (CVE-2017-7186). The _pcre32_xclass function in pcre_xclass.c in libpcre1 in PCRE 8.40 allows remote attackers to cause a denial of service (invalid memory read) via a crafted file (CVE-2017-7244). Stack-based buffer overflow in the pcre32_copy_substring function in pcre_get.c in libpcre1 in PCRE 8.40 allows remote attackers to cause a denial of service (WRITE of size 4) or possibly have unspecified other impact via a crafted file (CVE-2017-7245). Stack-based buffer overflow in the pcre32_copy_substring function in pcre_get.c in libpcre1 in PCRE 8.40 allows remote attackers to cause a denial of service (WRITE of size 268) or possibly have unspecified other impact via a crafted file (CVE-2017-7246).

References: https://advisories.mageia.org/MGASA-2017-0454.html, https://bugs.mageia.org/show_bug.cgi?id=20355, http://openwall.com/lists/oss-security/2017/03/24/1, http://openwall.com/lists/oss-security/2017/03/24/2, https://lists.fedoraproject.org/archives/list/[email protected]/thread/ESZV6GLV63XBXTZQOAJPOWLRIG35TEV7/, https://lists.fedoraproject.org/archives/list/[email protected]/thread/XEYMUTVQAMYFGYH7ZE6RJD34GJMBZRMS/