[manjaro-security] [arch-security] [ASA-201601-17] ffmpeg: information leakage
Remi Gacogne
rgacogne at archlinux.org
Sun Jan 17 16:19:52 CET 2016
Arch Linux Security Advisory ASA-201601-17
==========================================
Severity: Medium
Date : 2016-01-17
CVE-ID : CVE-2016-1897 CVE-2016-1898
Package : ffmpeg
Type : information leakage
Remote : Yes
Link : https://wiki.archlinux.org/index.php/CVE
Summary
=======
The package ffmpeg before version 1:2.8.4-3 is vulnerable to information
leakage.
Resolution
==========
Upgrade to 1:2.8.4-3.
# pacman -Syu "ffmpeg>=1:2.8.4-3"
The problem has been fixed upstream in version 2.8.5.
Workaround
==========
None.
Description
===========
A vulnerability in the way FFmpeg handles the concat (CVE-2016-1897) and
subfile (CVE-2016-1898) protocols in a HTTP Live Streaming (HLS) M3U8
file allows a remote attacker to conduct a cross-origin attacks, and to
access arbitrary local files on the vulnerable host. The attack uses a
crafted M3U8 file to make FFmpeg send a HTTP request to an external
server, with the URL containing data from arbitrary local files.
Impact
======
A remote attacker, by providing a crafted M3U8 file, can access the
content of arbitrary local files on the affected host.
References
==========
https://bugs.archlinux.org/task/47738
http://seclists.org/oss-sec/2016/q1/85
https://security-tracker.debian.org/tracker/CVE-2016-1897
https://security-tracker.debian.org/tracker/CVE-2016-1898
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