DescriptionHeap-based buffer overflow in the resize_context_buffers function in libvpx in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 allows remote attackers to execute arbitrary code via malformed WebM video data.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severityhigh (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libvpx (PTS)wheezy1.1.0-1fixed
wheezy (security)1.1.0-1+deb7u1fixed
jessie (security)1.3.0-3+deb8u1fixed
stretch (security), stretch1.6.1-3+deb9u1fixed
buster, sid1.7.0-3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libvpxsourcejessie(not affected)
libvpxsourcesqueeze(not affected)
libvpxsourcewheezy(not affected)


[jessie] - libvpx <not-affected> (Vulnerable code not present)
[wheezy] - libvpx <not-affected> (Vulnerable code not present)
[squeeze] - libvpx <not-affected> (Vulnerable code not present) is restricted

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