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Sicherheit: Pufferüberlauf in libpng
Aktuelle Meldungen Distributionen
Name: Pufferüberlauf in libpng
ID: MDKSA-2002:049
Distribution: Mandrake
Plattformen: Mandrake 7.1, Mandrake 7.2, Mandrake Corporate Server 1.0.1, Mandrake 8.0, Mandrake Single Network Firewall 7.2, Mandrake 8.1, Mandrake 8.2
Datum: Mi, 14. August 2002, 13:00
Referenzen: Keine Angabe
Applikationen: libpng

Originalnachricht

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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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