| Name | CVE-2015-7942 |
| Description | The 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-334-1, DSA-3430-1 |
| Debian Bugs | 802827 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| libxml2 (PTS) | jessie, jessie (lts) | 2.9.1+dfsg1-5+deb8u17 | fixed |
| stretch (security) | 2.9.4+dfsg1-2.2+deb9u7 | fixed | |
| stretch (lts), stretch | 2.9.4+dfsg1-2.2+deb9u11 | fixed | |
| buster, buster (lts) | 2.9.4+dfsg1-7+deb10u9 | fixed | |
| buster (security) | 2.9.4+dfsg1-7+deb10u6 | fixed | |
| bullseye | 2.9.10+dfsg-6.7+deb11u4 | fixed | |
| bullseye (security) | 2.9.10+dfsg-6.7+deb11u5 | fixed | |
| bookworm | 2.9.14+dfsg-1.3~deb12u1 | fixed | |
| sid, trixie | 2.12.7+dfsg+really2.9.14-0.2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| libxml2 | source | squeeze | 2.7.8.dfsg-2+squeeze13 | DLA-334-1 | ||
| libxml2 | source | wheezy | 2.8.0+dfsg1-7+wheezy5 | DSA-3430-1 | ||
| libxml2 | source | jessie | 2.9.1+dfsg1-5+deb8u1 | DSA-3430-1 | ||
| libxml2 | source | (unstable) | 2.9.3+dfsg1-1 | 802827 |
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