Mandriva: Updated syslinux packages to fix embedded libpng vulnerabilities
Posted by Benjamin D. Thomas   
Mandrake 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.
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 Mandriva Linux Security Advisory                         MDKSA-2006:210
 http://www.mandriva.com/security/
 _______________________________________________________________________
 
 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 < 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
 _______________________________________________________________________

 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
 _______________________________________________________________________

 Type Bits/KeyID     Date       User ID
 pub  1024D/22458A98 2000-07-10 Mandriva Security Team