CVE-2017-9049

NameCVE-2017-9049
Descriptionlibxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictComputeFastKey function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for libxml2 Bug 759398.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-1008-1
NVD severitymedium (attack range: remote)
Debian Bugs863019

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libxml2 (PTS)wheezy2.8.0+dfsg1-7+wheezy5vulnerable
wheezy (security)2.8.0+dfsg1-7+wheezy8fixed
jessie (security), jessie2.9.1+dfsg1-5+deb8u4vulnerable
stretch2.9.4+dfsg1-2.2vulnerable
buster, sid2.9.4+dfsg1-3vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libxml2source(unstable)(unfixed)medium863019
libxml2sourcewheezy2.8.0+dfsg1-7+wheezy8mediumDLA-1008-1

Notes

https://bugzilla.gnome.org/show_bug.cgi?id=781205 (not public)
http://www.openwall.com/lists/oss-security/2017/05/15/1
Fixed by: https://git.gnome.org/browse/libxml2/commit/?id=e26630548e7d138d2c560844c43820b6767251e3

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