Mandrake alert: libpng update

Posted by dave on Aug 13, 2002 5:10 PM EST
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A buffer overflow was found in the in the progressive reader of the PNG library when the PNG datastream contains more IDAT data than indicated by the IHDR chunk. These deliberately malformed datastreams would crash applications thus potentially allowing an attacker to execute malicious code. Many programs make use of the PNG libraries, including web browsers. This overflow is corrected in versions 1.0.14 and 1.2.4 of the PNG library. In order to have the system utilize the upgraded packages after the upgrade, you must restart all running applications that are linked to libpng. You can obtain this list by executing "lsof|grep libpng" or "fuser -v /usr/lib/libpng.so".

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________________________________________________________________________

Mandrake Linux Security Update Advisory ________________________________________________________________________

Package name: libpng Advisory ID: MDKSA-2002:049 Date: August 13th, 2002 Affected versions: 7.1, 7.2, 8.0, 8.1, 8.2, Corporate Server 1.0.1, Single Network Firewall 7.2 ________________________________________________________________________

Problem Description:

A buffer overflow was found in the in the progressive reader of the PNG library when the PNG datastream contains more IDAT data than indicated by the IHDR chunk. These deliberately malformed datastreams would crash applications thus potentially allowing an attacker to execute malicious code. Many programs make use of the PNG libraries, including web browsers. This overflow is corrected in versions 1.0.14 and 1.2.4 of the PNG library.

In order to have the system utilize the upgraded packages after the upgrade, you must restart all running applications that are linked to libpng. You can obtain this list by executing "lsof|grep libpng" or "fuser -v /usr/lib/libpng.so". ________________________________________________________________________

References:

ftp://swrinde.nde.swri.edu/pub/png-group/archives/png-list.200207 ________________________________________________________________________

Updated Packages:

Linux-Mandrake 7.1: d5a7e93ceeb6df5bc5d8a76d5cc5f8a6 7.1/RPMS/libpng-1.0.5-2.1mdk.i586.rpm 8ebcd9cc318fc4de56119cbfdaef7b97 7.1/RPMS/libpng-devel-1.0.5-2.1mdk.i586.rpm 408b761599627e63fede428188ee4cde 7.1/SRPMS/libpng-1.0.5-2.1mdk.src.rpm

Linux-Mandrake 7.2: f874a9d863411cd836b65958612e3fb6 7.2/RPMS/libpng-1.0.8-2.1mdk.i586.rpm 407550b6731f2b788a1ac2bceeac9089 7.2/RPMS/libpng-devel-1.0.8-2.1mdk.i586.rpm 010138d7edef8a2583ec14759d77cc9d 7.2/SRPMS/libpng-1.0.8-2.1mdk.src.rpm

Mandrake Linux 8.0: 8648f8cd2b58eb6c172f2406b0f4b682 8.0/RPMS/libpng2-1.0.9-1.1mdk.i586.rpm a7602d35d7d0d9970a81cd7577cb8af7 8.0/RPMS/libpng2-devel-1.0.9-1.1mdk.i586.rpm 95518056351fcf8c0b177fc6d2af1407 8.0/SRPMS/libpng-1.0.9-1.1mdk.src.rpm

Mandrake Linux 8.0/ppc: 45c1bc185692591ae2a3b749d6b4ecf2 ppc/8.0/RPMS/libpng2-1.0.9-1.1mdk.ppc.rpm 391a4ef3e765b0503c0eac30cac192e1 ppc/8.0/RPMS/libpng2-devel-1.0.9-1.1mdk.ppc.rpm 95518056351fcf8c0b177fc6d2af1407 ppc/8.0/SRPMS/libpng-1.0.9-1.1mdk.src.rpm

Mandrake Linux 8.1: 365df8f064465bff640490f0cb301cab 8.1/RPMS/libpng2-1.0.12-2.1mdk.i586.rpm e770285d26cf86e5ca5625b2fe7da87c 8.1/RPMS/libpng2-devel-1.0.12-2.1mdk.i586.rpm 0092e39856086da06359184cb2722f09 8.1/SRPMS/libpng-1.0.12-2.1mdk.src.rpm

Mandrake Linux 8.1/ia64: 70766209bc1d23c47736f7ad827ba197 ia64/8.1/RPMS/libpng2-1.0.12-2.1mdk.ia64.rpm 46b8453ed9b48ff3d1940b9ea5028ae9 ia64/8.1/RPMS/libpng2-devel-1.0.12-2.1mdk.ia64.rpm 0092e39856086da06359184cb2722f09 ia64/8.1/SRPMS/libpng-1.0.12-2.1mdk.src.rpm

Mandrake Linux 8.2: a356a7d29a489d4a4cf69948820818cc 8.2/RPMS/libpng3-1.2.4-3.1mdk.i586.rpm d82469cdfdbbab17d95920646f9ab128 8.2/RPMS/libpng3-devel-1.2.4-3.1mdk.i586.rpm 300ca08369f671487bb8c3da92880351 8.2/RPMS/libpng3-static-devel-1.2.4-3.1mdk.i586.rpm c8634093c123e017e1e7b84dcce7ad0a 8.2/SRPMS/libpng-1.2.4-3.1mdk.src.rpm

Mandrake Linux 8.2/ppc: 0962951701cf5c31e8bc2c08f7aac684 ppc/8.2/RPMS/libpng3-1.2.4-3.1mdk.ppc.rpm d61d6870fea5b6a8012d09e7ff68934e ppc/8.2/RPMS/libpng3-devel-1.2.4-3.1mdk.ppc.rpm b488212adf640b21fb68a65cf8a74761 ppc/8.2/RPMS/libpng3-static-devel-1.2.4-3.1mdk.ppc.rpm c8634093c123e017e1e7b84dcce7ad0a ppc/8.2/SRPMS/libpng-1.2.4-3.1mdk.src.rpm

Corporate Server 1.0.1: d5a7e93ceeb6df5bc5d8a76d5cc5f8a6 1.0.1/RPMS/libpng-1.0.5-2.1mdk.i586.rpm 8ebcd9cc318fc4de56119cbfdaef7b97 1.0.1/RPMS/libpng-devel-1.0.5-2.1mdk.i586.rpm 408b761599627e63fede428188ee4cde 1.0.1/SRPMS/libpng-1.0.5-2.1mdk.src.rpm

Single Network Firewall 7.2: f874a9d863411cd836b65958612e3fb6 snf7.2/RPMS/libpng-1.0.8-2.1mdk.i586.rpm 010138d7edef8a2583ec14759d77cc9d snf7.2/SRPMS/libpng-1.0.8-2.1mdk.src.rpm ________________________________________________________________________

Bug IDs fixed (see https://qa.mandrakesoft.com for more information):

________________________________________________________________________

To upgrade automatically, use MandrakeUpdate. The verification of md5 checksums and GPG signatures is performed automatically for you.

If you want to upgrade manually, download the updated package from one of our FTP server mirrors and upgrade with "rpm -Fvh *.rpm". A list of FTP mirrors can be obtained from:

http://www.mandrakesecure.net/en/ftp.php

Please verify the update prior to upgrading to ensure the integrity of the downloaded package. You can do this with the command:

rpm --checksig <filename>

All packages are signed by MandrakeSoft for security. You can obtain the GPG public key of the Mandrake Linux Security Team from:

https://www.mandrakesecure.net/RPM-GPG-KEYS

Please be aware that sometimes it takes the mirrors a few hours to update.

You can view other update advisories for Mandrake Linux at:

http://www.mandrakesecure.net/en/advisories/

MandrakeSoft has several security-related mailing list services that anyone can subscribe to. Information on these lists can be obtained by visiting:

http://www.mandrakesecure.net/en/mlist.php

If you want to report vulnerabilities, please contact

security@linux-mandrake.com ________________________________________________________________________

Type Bits/KeyID Date User ID pub 1024D/22458A98 2000-07-10 Linux Mandrake Security Team <security@linux-mandrake.com>

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