NULL Pointer Dereference Affecting libav package, versions <6:9.20-0ubuntu0.14.04.1+esm1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-UBUNTU1404-LIBAV-405047
- published7 Oct 2016
- disclosed7 Oct 2016
Introduced: 7 Oct 2016
CVE-2016-7424 (opens in a new tab)How to fix?
Upgrade Ubuntu:14.04 libav to version 6:9.20-0ubuntu0.14.04.1+esm1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libav package and not the libav package as distributed by Ubuntu.
See How to fix? for Ubuntu:14.04 relevant fixed versions and status.
The put_no_rnd_pixels8_xy2_mmx function in x86/rnd_template.c in libav 11.7 and earlier allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted MP3 file.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2016-7424
- http://www.debian.org/security/2016/dsa-3685
- https://security-tracker.debian.org/tracker/CVE-2016-7424
- https://blogs.gentoo.org/ago/2016/09/17/libav-null-pointer-dereference-in-put_no_rnd_pixels8_xy2_mmx-rnd_template-c/
- https://bugzilla.libav.org/show_bug.cgi?id=962
- https://git.libav.org/?p=libav.git;a=commit;h=136f55207521f0b03194ef5b55ba70f1635d6aee
- http://www.openwall.com/lists/oss-security/2016/09/16/17
- http://www.openwall.com/lists/oss-security/2016/09/17/1
- http://www.openwall.com/lists/oss-security/2016/09/17/4
- http://www.securityfocus.com/bid/93038
- https://git.libav.org/?p=libav.git%3Ba=commit%3Bh=136f55207521f0b03194ef5b55ba70f1635d6aee