Out-of-Bounds Affecting libav package, versions *
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-405079
- published13 Nov 2017
- disclosed13 Nov 2017
Introduced: 13 Nov 2017
CVE-2017-16803 (opens in a new tab)How to fix?
There is no fixed version for Ubuntu:14.04 libav.
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.
In Libav through 11.11 and 12.x through 12.1, the smacker_decode_tree function in libavcodec/smacker.c does not properly restrict tree recursion, which allows remote attackers to cause a denial of service (bitstream.c:build_table() out-of-bounds read and application crash) via a crafted Smacker stream.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-16803
- https://bugzilla.libav.org/show_bug.cgi?id=1098
- https://www.debian.org/security/2018/dsa-4119
- https://security-tracker.debian.org/tracker/CVE-2017-16803
- https://security.gentoo.org/glsa/201811-19
- https://github.com/libav/libav/commit/cd4663dc80323ba64989d0c103d51ad3ee0e9c2f
- http://www.securityfocus.com/bid/101882