CVE-2015-7498

NameCVE-2015-7498
DescriptionHeap-based buffer overflow in the xmlParseXmlDecl function in parser.c in libxml2 before 2.9.3 allows context-dependent attackers to cause a denial of service via unspecified vectors related to extracting errors after an encoding conversion failure.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-373-1, DSA-3430-1
NVD severitymedium (attack range: remote)

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, stretch (security)2.9.4+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+dfsg1-1medium
libxml2sourcejessie2.9.1+dfsg1-5+deb8u1mediumDSA-3430-1
libxml2sourcesqueeze2.7.8.dfsg-2+squeeze16mediumDLA-373-1
libxml2sourcewheezy2.8.0+dfsg1-7+wheezy5mediumDSA-3430-1

Notes

https://git.gnome.org/browse/libxml2/commit/?id=afd27c21f6b36e22682b7da20d726bce2dcb2f43 (v2.9.3)
https://bugzilla.gnome.org/show_bug.cgi?id=756527 (upstream bug not yet open)

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