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| Problem Description |
Simon Kilvington discovered a vulnerability in FFmpeg libavcodec,
which can be exploited by malicious people to cause a DoS (Denial
of Service) and potentially to compromise a user's system.
The vulnerability is caused due to a boundary error in the
"avcodec_default_get_buffer()" function of "utils.c" in libavcodec.
This can be exploited to cause a heap-based buffer overflow when a
specially-crafted 1x1 ".png" file containing a palette is read.
Gstreamer-ffmpeg is built with a private copy of ffmpeg containing
this same code.
The updated packages have been patched to prevent this problem.
| Updated Packages |
Mandriva Linux 2006
1e7f7ad8be3efcc5152901d1de9050c7 2006.0/RPMS/gstreamer-ffmpeg-0.8.6-1.1.20060mdk.i586.rpm 2923eb22aafa7aedd073516e47a7d94f 2006.0/SRPMS/gstreamer-ffmpeg-0.8.6-1.1.20060mdk.src.rpm
Mandriva Linux 2006/X86_64
617b165113eb1af7e805d7c2423a771b x86_64/2006.0/RPMS/gstreamer-ffmpeg-0.8.6-1.1.20060mdk.x86_64.rpm 2923eb22aafa7aedd073516e47a7d94f x86_64/2006.0/SRPMS/gstreamer-ffmpeg-0.8.6-1.1.20060mdk.src.rpm
| References |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-4048
| Upgrade |
To upgrade automatically, use MandrivaUpdate.
| Verification |
Please verify the update prior to upgrading to ensure the integrity of the downloaded package. You can do this with the command :
rpm --checksig package.rpm
You can get the GPG public key of the Mandriva Security Team to verify the GPG signature of each RPM.
If you use MandrivaUpdate, the verification of md5 checksum and GPG signature is performed automatically for you.