xine-lib, FFmpeg: Heap-based buffer overflow

xine-lib, FFmpeg: Heap-based buffer overflow xine-lib and FFmpeg are vulnerable to a buffer overflow that may be exploited by attackers to execute arbitrary code. xine-lib ffmpeg 2006-01-10 2006-01-10 115849 116181 remote 1.1.1-r3 1.1.1-r3 0.4.9_p20051216 0.4.9_p20051216

xine is a GPL high-performance, portable and reusable multimedia playback engine. xine-lib is xine's core engine. FFmpeg is a very fast video and audio converter and is used in xine-lib.

Simon Kilvington has reported a vulnerability in FFmpeg libavcodec. The flaw is due to a buffer overflow error in the "avcodec_default_get_buffer()" function. This function doesn't properly handle specially crafted PNG files as a result of a heap overflow.

A remote attacker could entice a user to run an FFmpeg based application on a maliciously crafted PNG file, resulting in the execution of arbitrary code with the permissions of the user running the application.

There is no known workaround at this time.

All xine-lib users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-libs/xine-lib-1.1.1-r3"

All FFmpeg users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-video/ffmpeg-0.4.9_p20051216"

CVE-2005-4048 Original advisory koon adir DerCorny