full-disclosure - [ MDKSA-2006:211 ] - Updated pxelinux packages to fix embedded libpng vulnerabilities

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Message-Id: <E1Gkpxg-0000FO-Ib@mercury.mandriva.com>
Date: Thu, 16 Nov 2006 15:44:00 -0700
From: security@...driva.com
To: full-disclosure@...ts.grok.org.uk
Subject: [ MDKSA-2006:211 ] - Updated pxelinux packages to
	fix embedded libpng vulnerabilities

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 _______________________________________________________________________

 Mandriva Linux Security Advisory                         MDKSA-2006:211
 http://www.mandriva.com/security/
 _______________________________________________________________________

 Package : pxelinux
 Date    : November 16, 2006
 Affected: 2006.0, Corporate 4.0
 _______________________________________________________________________

 Problem Description:

 PXELINUX is a PXE bootloader.  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.
 _______________________________________________________________________

 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
 _______________________________________________________________________

 Updated Packages:

 Mandriva Linux 2006.0:
 0ea71d307e69d9edd950e75cabafd7c0  2006.0/i586/pxelinux-3.11-1.1.20060mdk.i586.rpm
 dff7ef13f57d61a451b77b00918e07cd  2006.0/i586/pxelinux-devel-3.11-1.1.20060mdk.i586.rpm 
 a9c531ff69efb2df50a8a00311181f65  2006.0/SRPMS/pxelinux-3.11-1.1.20060mdk.src.rpm

 Mandriva Linux 2006.0/X86_64:
 deec78c2bf5e26ff7d7aab58cf5a2fc5  2006.0/x86_64/pxelinux-3.11-1.1.20060mdk.i586.rpm
 52d33b5d03e87636fbda2e643dc60882  2006.0/x86_64/pxelinux-devel-3.11-1.1.20060mdk.i586.rpm 
 a9c531ff69efb2df50a8a00311181f65  2006.0/SRPMS/pxelinux-3.11-1.1.20060mdk.src.rpm

 Corporate 4.0:
 b0d3ea9fb11f47f5b60d35e511c069cf  corporate/4.0/i586/pxelinux-3.11-1.1.20060mlcs4.i586.rpm
 c34a3638a6042258306fa591a542f880  corporate/4.0/i586/pxelinux-devel-3.11-1.1.20060mlcs4.i586.rpm 
 68a203b1315849d3f690e2c5dd05b994  corporate/4.0/SRPMS/pxelinux-3.11-1.1.20060mlcs4.src.rpm

 Corporate 4.0/X86_64:
 101bf5ce7b71092aa0d867475c71713b  corporate/4.0/x86_64/pxelinux-3.11-1.1.20060mlcs4.i586.rpm
 b8e512bf0b8ce91b64fad1a69735360c  corporate/4.0/x86_64/pxelinux-devel-3.11-1.1.20060mlcs4.i586.rpm 
 68a203b1315849d3f690e2c5dd05b994  corporate/4.0/SRPMS/pxelinux-3.11-1.1.20060mlcs4.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
  <security*mandriva.com>
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