[Security Announce] [ MDKSA-2006:210 ] - Updated syslinux packages to fix embedded libpng vulnerabilities
Posted on: 11/17/2006 12:55 AM

The Mandriva Security Team published a new security update for Mandriva Linux. Here the announcement:

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Mandriva Linux Security Advisory MDKSA-2006:210
http://www.mandriva.com/security/
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Package : syslinux
Date : November 16, 2006
Affected: 2007.0
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Problem Description:

SYSLINUX is a boot loader for the Linux operating system which operates
off an MS-DOS/Windows FAT filesystem. It is built with a private copy
of libpng, and as such could be susceptible to some of the same
vulnerabilities:

Buffer overflow in the png_decompress_chunk function in pngrutil.c in
libpng before 1.2.12 allows context-dependent attackers to cause a
denial of service and possibly execute arbitrary code via unspecified
vectors related to "chunk error processing," possibly involving the
"chunk_name". (CVE-2006-3334)

It is questionable whether this issue is actually exploitable, but the
patch to correct the issue has been included in versions lt; 1.2.12.

Tavis Ormandy, of the Gentoo Linux Security Auditing Team, discovered a
typo in png_set_sPLT() that may cause an application using libpng to
read out of bounds, resulting in a crash. (CVE-2006-5793)

Packages have been patched to correct these issues.
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References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3334
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5793
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Updated Packages:

Mandriva Linux 2007.0:
a2d0440a0b3a9c931479800703a2d60e 2007.0/i586/pxelinux-3.20-3.1mdv2007.0.i586.rpm
1dcefe1c500d17ddc430c9990b202c2b 2007.0/i586/syslinux-3.20-3.1mdv2007.0.i586.rpm
4c973128add1460edb19f4826a1bad7a 2007.0/i586/syslinux-devel-3.20-3.1mdv2007.0.i586.rpm
3893ea9327016ffbd67429924376378d 2007.0/SRPMS/syslinux-3.20-3.1mdv2007.0.src.rpm

Mandriva Linux 2007.0/X86_64:
f8a364fb18e1a5a17d9112738925555c 2007.0/x86_64/pxelinux-3.20-3.1mdv2007.0.i586.rpm
dc169368f3b24012fd34030a82de0367 2007.0/x86_64/syslinux-3.20-3.1mdv2007.0.i586.rpm
e4ef6f30ce1ff80b91e21e883eff1d27 2007.0/x86_64/syslinux-devel-3.20-3.1mdv2007.0.i586.rpm
3893ea9327016ffbd67429924376378d 2007.0/SRPMS/syslinux-3.20-3.1mdv2007.0.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
lt;security*mandriva.comgt;
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