DescriptionThe decrease_ref_count function in libvpx in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 allows remote attackers to execute arbitrary code or cause a denial of service (out-of-bounds read) 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 advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libvpx (PTS)buster, buster (security)1.7.0-3+deb10u1fixed
bookworm, sid1.12.0-1fixed

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

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