Published: 14 January 2016

FFmpeg 2.x allows remote attackers to conduct cross-origin attacks and read arbitrary files by using the subfile protocol in an HTTP Live Streaming (HLS) M3U8 file, leading to an external HTTP request in which the URL string contains an arbitrary line of a local file.

From the Ubuntu security team

It was discovered that Libav incorrectly handled certain media files. An attacker could possibly use this issue to cause a denial of service or other unspecified impact.



CVSS 3 base score: 5.5


Package Release Status
Launchpad, Ubuntu, Debian
Released (2.8.5,2.7.5,2.6.7,2.5.10)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (7:2.8.6-1ubuntu1)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (7:2.8.6-1ubuntu1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was needed)