The Mandriva Security Team published a new security update: MDKSA-2005:229 - Updated xmovie packages fix buffer overflow vulnerability for Mandriva Linux. Here the announcement:

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Mandriva Linux Security Advisory MDKSA-2005:229
http://www.mandriva.com/security/
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Package : xmovie
Date : December 14, 2005
Affected: 2006.0, Corporate 3.0
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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.

Xmovie is built with a private copy of ffmpeg containing this
same code.

The updated packages have been patched to prevent this problem.
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References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-4048
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Updated Packages:

Mandriva Linux 2006.0:
b6b3622d949af833f6fbb5b89a32a10d 2006.0/RPMS/xmovie-1.9.13-2.2.20060mdk.i586.rpm
48f0b55b1d8547eb77d3f4cf9787544b 2006.0/SRPMS/xmovie-1.9.13-2.2.20060mdk.src.rpm

Corporate 3.0:
3fae159ac8ab7aa190d341868009e3c6 corporate/3.0/RPMS/xmovie-1.9.11-1.2.C30mdk.i586.rpm
18674dd3aff5f923ac327bbf134aca8c corporate/3.0/SRPMS/xmovie-1.9.11-1.2.C30mdk.src.rpm
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To upgrade automatically use MandrivaUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.

All packages are signed by Mandriva for security. You can obtain the
GPG public key of the Mandriva Security Team by executing:

gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98

You can view other update advisories for Mandriva Linux at:

http://www.mandriva.com/security/advisories

If you want to report vulnerabilities, please contact

security_(at)_mandriva.com
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Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Mandriva Security Team
<security*mandriva.com>
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