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________________________________________________________________________
Mandrake Linux Security Update Advisory
________________________________________________________________________
Package name: zlib
Advisory ID: MDKSA-2002:022
Date: March 12th, 2002
Affected versions: 7.1, 7.2, 8.0, 8.1, Corporate Server 1.0.1,
Single Network Firewall 7.2
________________________________________________________________________
Problem Description:
Matthias Clasen found a security issue in zlib that, when provided with
certain input, causes zlib to free an area of memory twice. This
"double free" bug can be used to crash any programs that take untrusted
compressed input, such as web browsers, email clients, image viewing
software, etc. This vulnerability can be used to perform Denial of
Service attacks and, quite possibly, the execution of arbitrary code on
the affected system.
MandrakeSoft has published two advisories concerning this incident:
MDKSA-2002:022 - zlib
MDKSA-2002:023 - packages containing zlib
The second advisory contains additional packages that bring their own
copies of the zlib source, and as such need to be fixed and rebuilt.
Updating the zlib library is sufficient to protect those programs that
use the system zlib, but the packages as noted in MDKSA-2002:023 will
need to be updated for those packages that do not use the system zlib.
________________________________________________________________________
References:
http://www.kb.cert.org/vuls/id/368819
________________________________________________________________________
Updated Packages:
Linux-Mandrake 7.1:
7921c049e634ae5bde97e963aa47d22b 7.1/RPMS/zlib-1.1.3-11.1mdk.i586.rpm
5146bc0863db8692475887884d4ee66a 7.1/RPMS/zlib-devel-1.1.3-11.1mdk.i586.rpm
2e24e2958c0663378635ede5f8ca4d83 7.1/SRPMS/zlib-1.1.3-11.1mdk.src.rpm
Linux-Mandrake 7.2:
e23855800a5f9933217e6c94f2c93069 7.2/RPMS/zlib-1.1.3-11.1mdk.i586.rpm
f39c0455f8d0ae276cb5417dcfb3aa00 7.2/RPMS/zlib-devel-1.1.3-11.1mdk.i586.rpm
2e24e2958c0663378635ede5f8ca4d83 7.2/SRPMS/zlib-1.1.3-11.1mdk.src.rpm
Mandrake Linux 8.0:
58775896267f0454e554578c732e685c 8.0/RPMS/zlib1-1.1.3-16.1mdk.i586.rpm
8917338feb592dad773cb6b3feac0d91 8.0/RPMS/zlib1-devel-1.1.3-16.1mdk.i586.rpm
582b5dd80b2ff9f24ed274fbc82c5c19 8.0/SRPMS/zlib-1.1.3-16.1mdk.src.rpm
Mandrake Linux 8.0/ppc:
939ed423af6fc514e4bde2dfc519ea13 ppc/8.0/RPMS/zlib1-1.1.3-16.1mdk.ppc.rpm
f8efcbf6e55e2774fbd98b67ffe9838f ppc/8.0/RPMS/zlib1-devel-1.1.3-16.1mdk.ppc.rpm
582b5dd80b2ff9f24ed274fbc82c5c19 ppc/8.0/SRPMS/zlib-1.1.3-16.1mdk.src.rpm
Mandrake Linux 8.1:
6dca9c0ff7dac9759d735150139182da 8.1/RPMS/zlib1-1.1.3-16.1mdk.i586.rpm
320d06d5f1acc841965ad6c16db396cf 8.1/RPMS/zlib1-devel-1.1.3-16.1mdk.i586.rpm
582b5dd80b2ff9f24ed274fbc82c5c19 8.1/SRPMS/zlib-1.1.3-16.1mdk.src.rpm
Mandrake Linux 8.1/ia64:
c25baf28293b0619fad97c863e953103 ia64/8.1/RPMS/zlib1-1.1.3-16.1mdk.ia64.rpm
10000858776526410b0d3526f1157909 ia64/8.1/RPMS/zlib1-devel-1.1.3-16.1mdk.ia64.rpm
582b5dd80b2ff9f24ed274fbc82c5c19 ia64/8.1/SRPMS/zlib-1.1.3-16.1mdk.src.rpm
Corporate Server 1.0.1:
7921c049e634ae5bde97e963aa47d22b 1.0.1/RPMS/zlib-1.1.3-11.1mdk.i586.rpm
5146bc0863db8692475887884d4ee66a 1.0.1/RPMS/zlib-devel-1.1.3-11.1mdk.i586.rpm
2e24e2958c0663378635ede5f8ca4d83 1.0.1/SRPMS/zlib-1.1.3-11.1mdk.src.rpm
Single Network Firewall 7.2:
e23855800a5f9933217e6c94f2c93069 snf7.2/RPMS/zlib-1.1.3-11.1mdk.i586.rpm
f39c0455f8d0ae276cb5417dcfb3aa00 snf7.2/RPMS/zlib-devel-1.1.3-11.1mdk.i586.rpm
2e24e2958c0663378635ede5f8ca4d83 snf7.2/SRPMS/zlib-1.1.3-11.1mdk.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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This archive was generated by hypermail 2b30 : Tue Mar 12 2002 - 17:20:52 PST