Debian Long Term Support / LTS Security Information / 2017 / Security Information -- DLA-1142-1 libav

Debian Security Advisory

DLA-1142-1 libav -- LTS security update

Date Reported:

21 Oct 2017

Affected Packages:

libav

Vulnerable:

Yes

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:

• CVE-2015-8365

  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.

• CVE-2017-7208

  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.

• CVE-2017-7862

  The decode_frame function in libavcodec/pictordec.c is vulnerable to an out-of-bounds write caused by a heap-based buffer overflow.

• CVE-2017-9992

  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