Debian Security Advisory
DLA-1142-1 libav -- LTS security update
- Date Reported:
- 21 Oct 2017
- Affected Packages:
- Security database references:
- In Mitre's CVE dictionary: CVE-2015-8365, CVE-2017-7208, CVE-2017-7862, CVE-2017-9992.
- More information:
Multiple vulnerabilities have been found in libav:
The smka_decode_frame function in libavcodec/smacker.c does not verify that the data size is consistent with the number of channels, which allows remote attackers to cause a denial of service (out-of-bounds array access) or possibly have unspecified other impact via crafted Smacker data.
The decode_residual function in libavcodec allows remote attackers to cause a denial of service (buffer over-read) or obtain sensitive information from process memory via a crafted h264 video file.
The decode_frame function in libavcodec/pictordec.c is vulnerable to an out-of-bounds write caused by a heap-based buffer overflow.
The decode_dds1 function in libavcodec/dfa.c allows remote attackers to cause a denial of service (Heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted file.
For Debian 7
Wheezy, these problems have been fixed in version 6:0.8.21-0+deb7u1.
We recommend that you upgrade your libav packages.
Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS