Numeric Errors Affecting libav package, versions <4:0.8.17-0ubuntu0.12.04.2
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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Test your applications- Snyk IDSNYK-UBUNTU1204-LIBAV-405041
- published19 Apr 2016
- disclosed19 Apr 2016
Introduced: 19 Apr 2016
CVE-2015-5479 (opens in a new tab)How to fix?
Upgrade Ubuntu:12.04 libav to version 4:0.8.17-0ubuntu0.12.04.2 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:12.04 relevant fixed versions and status.
The ff_h263_decode_mba function in libavcodec/ituh263dec.c in Libav before 11.5 allows remote attackers to cause a denial of service (divide-by-zero error and application crash) via a file with crafted dimensions.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2015-5479
- https://git.libav.org/?p=libav.git;a=commitdiff;h=0a49a62f998747cfa564d98d36a459fe70d3299b
- https://libav.org/releases/libav-11.5.changelog
- https://security-tracker.debian.org/tracker/CVE-2015-5479
- https://blogs.gentoo.org/ago/2015/07/16/libav-divide-by-zero-in-ff_h263_decode_mba/
- http://lists.opensuse.org/opensuse-updates/2016-06/msg00105.html
- http://www.securityfocus.com/bid/75932
- http://www.ubuntu.com/usn/USN-2944-1
- https://git.libav.org/?p=libav.git%3Ba=commitdiff%3Bh=0a49a62f998747cfa564d98d36a459fe70d3299b