Integer Overflow or Wraparound 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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Test your applications- Snyk IDSNYK-UBUNTU1404-LIBAV-404925
- published1 Mar 2017
- disclosed1 Mar 2017
Introduced: 1 Mar 2017
CVE-2016-9821 (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.
Integer overflow in libavcodec/mpegvideo_parser.c in libav 11.8 allows remote attackers to cause a denial of service (crash) via a crafted file.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2016-9821
- http://www.debian.org/security/2017/dsa-3833
- https://security-tracker.debian.org/tracker/CVE-2016-9821
- https://blogs.gentoo.org/ago/2016/12/01/libav-multiple-crashes-from-the-undefined-behavior-sanitizer/
- http://www.securityfocus.com/bid/94732