CVE-2015-7942

NameCVE-2015-7942
DescriptionThe xmlParseConditionalSections function in parser.c in libxml2 does not properly skip intermediary entities when it stops parsing invalid input, which allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via crafted XML data, a different vulnerability than CVE-2015-7941.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-334-1, DSA-3430-1
NVD severitymedium (attack range: remote)
Debian Bugs802827

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libxml2 (PTS)wheezy2.8.0+dfsg1-7+wheezy5fixed
wheezy (security)2.8.0+dfsg1-7+wheezy9fixed
jessie2.9.1+dfsg1-5+deb8u4fixed
jessie (security)2.9.1+dfsg1-5+deb8u5fixed
stretch (security), stretch2.9.4+dfsg1-2.2+deb9u1fixed
buster2.9.4+dfsg1-4fixed
sid2.9.4+dfsg1-5fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libxml2source(unstable)2.9.3+dfsg1-1medium802827
libxml2sourcejessie2.9.1+dfsg1-5+deb8u1mediumDSA-3430-1
libxml2sourcesqueeze2.7.8.dfsg-2+squeeze13mediumDLA-334-1
libxml2sourcewheezy2.8.0+dfsg1-7+wheezy5mediumDSA-3430-1

Notes

https://bugzilla.gnome.org/show_bug.cgi?id=744980#c8
https://bugzilla.gnome.org/show_bug.cgi?id=756456#c0
https://git.gnome.org/browse/libxml2/commit/?id=bd0526e66a56e75a18da8c15c4750db8f801c52d
https://git.gnome.org/browse/libxml2/commit/?id=41ac9049a27f52e7a1f3b341f8714149fc88d450

Search for package or bug name: Reporting problems