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, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-334-1, DSA-3430-1
Debian Bugs802827

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libxml2 (PTS)bullseye2.9.10+dfsg-6.7+deb11u4fixed
bullseye (security)2.9.10+dfsg-6.7+deb11u5fixed
bookworm2.9.14+dfsg-1.3~deb12u1fixed
sid, trixie2.12.7+dfsg+really2.9.14-0.2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libxml2sourcesqueeze2.7.8.dfsg-2+squeeze13DLA-334-1
libxml2sourcewheezy2.8.0+dfsg1-7+wheezy5DSA-3430-1
libxml2sourcejessie2.9.1+dfsg1-5+deb8u1DSA-3430-1
libxml2source(unstable)2.9.3+dfsg1-1802827

Notes

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

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