Mandrake: UPDATE: 'zlib' Denial of Service
Posted by LinuxSecurity.com Team   
Mandrake zlib version 1.1.3 and lower of this library have a vulnerability which can be used by an attacker to cause a Denial of Service condition in most cases, or, in the worst case, possibly execute arbitrary code.

________________________________________________________________________

                Mandrake Linux Security Update Advisory
________________________________________________________________________

Package name:           packages containing zlib
Advisory ID:            MDKSA-2002:023-1
Date:                   March 13th, 2002
Original Advisory Date: March 12th, 2002
Affected versions:      7.1, 7.2, 8.0, 8.1, Corporate Server 1.0.1
________________________________________________________________________

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


Update:

 Additional package are now available.  For a list of prior packages
 released, please see MDKSA-2002:023.  The noted packages below are in
 addition to MDKSA-2002:023; no packages have been replaced.
________________________________________________________________________

References:

  http://www.kb.cert.org/vuls/id/368819
  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0059
________________________________________________________________________

Updated Packages:

 Linux-Mandrake 7.1:
 2d27c00ee4d2ab51a6aadb8f40dad47f  7.1/RPMS/mirrordir-0.10.44-4.2mdk.i586.rpm
 338b5c6dcbb77ed47af0872d7ab25546  7.1/SRPMS/mirrordir-0.10.44-4.2mdk.src.rpm

 Linux-Mandrake 7.2:
 66c94355997803c9882290a0b0cb5d0d  7.2/RPMS/mirrordir-0.10.44-4.1mdk.i586.rpm
 1f97eb5eeb8289cc467075f954adf8d5  7.2/SRPMS/mirrordir-0.10.44-4.1mdk.src.rpm

 Mandrake Linux 8.0:
 5b57acce2c0d4d540a976732708e9fb1  8.0/RPMS/libdiffie1-0.10.49-4.1mdk.i586.rpm
 e5d13156d7d49283b7d38454146a1061  8.0/RPMS/libdiffie1-devel-0.10.49-4.1mdk.i586.rpm
 dc76274eeebe8f532dc2d3f9bd609de7  8.0/RPMS/libgcj-2.96-2.1mdk.i586.rpm
 c7797c0a4d1db9cc989e556824e32b5b  8.0/RPMS/libgcj-devel-2.96-2.1mdk.i586.rpm
 87145d7098dbfe2ba2afe9221975de20  8.0/RPMS/libmirrordirz1-0.10.49-4.1mdk.i586.rpm
 6d18ea3747ed788ea810e08740657be4  8.0/RPMS/libmirrordirz1-devel-0.10.49-4.1mdk.i586.rpm
 0a51fab455d57ff2a077a0ca67c92f84  8.0/RPMS/mirrordir-0.10.49-4.1mdk.i586.rpm
 33aa51f4fd5001939fa0da7595ae71f2  8.0/SRPMS/libgcj-2.96-2.1mdk.src.rpm
 a3418ab0c7871a9dae31c6d0c4ec8297  8.0/SRPMS/mirrordir-0.10.49-4.1mdk.src.rpm

 Mandrake Linux 8.0/ppc:
 3354f857f116912c46e25d8da41a96b4  ppc/8.0/RPMS/libdiffie1-0.10.49-4.1mdk.ppc.rpm
 55adf8d07c9f2a6fb6f805586aaa2158  ppc/8.0/RPMS/libdiffie1-devel-0.10.49-4.1mdk.ppc.rpm
 4f038b0280b46da823cbeccd247ee2e9  ppc/8.0/RPMS/libmirrordirz1-0.10.49-4.1mdk.ppc.rpm
 7acd9c8829ae6158a0a33b6e90ff6f09  ppc/8.0/RPMS/libmirrordirz1-devel-0.10.49-4.1mdk.ppc.rpm
 73a05a049a7abbacf6418099b40b85bf  ppc/8.0/RPMS/mirrordir-0.10.49-4.1mdk.ppc.rpm
 a3418ab0c7871a9dae31c6d0c4ec8297  ppc/8.0/SRPMS/mirrordir-0.10.49-4.1mdk.src.rpm

 Mandrake Linux 8.1:
 dad3b87f67063c3b3f408f1d5bc3f563  8.1/RPMS/libdiffie1-0.10.49-4.1mdk.i586.rpm
 9ebbd056896bcd37a7529fc691d6e630  8.1/RPMS/libdiffie1-devel-0.10.49-4.1mdk.i586.rpm
 e1892ff3678c5834939ac126d2b5099e  8.1/RPMS/libgcj-2.96-4.1mdk.i586.rpm
 a7b86d4d31b8db6fc6d52d9af2adb363  8.1/RPMS/libgcj-devel-2.96-4.1mdk.i586.rpm
 39a8ac80320b606dfee1351793588129  8.1/RPMS/libmirrordirz1-0.10.49-4.1mdk.i586.rpm
 d6a48a1475811246cb7c81c6d215d88c  8.1/RPMS/libmirrordirz1-devel-0.10.49-4.1mdk.i586.rpm
 8cf0df0d8d996424fbdee0f2063935d0  8.1/RPMS/mirrordir-0.10.49-4.1mdk.i586.rpm
 8c7ddb0e3765fa6a5ee8e2eac72dcaca  8.1/SRPMS/libgcj-2.96-4.1mdk.src.rpm
 a3418ab0c7871a9dae31c6d0c4ec8297  8.1/SRPMS/mirrordir-0.10.49-4.1mdk.src.rpm

 Mandrake Linux 8.1/ia64:
 da3cc5c42395aaf89ef77c877c6e8909  ia64/8.1/RPMS/libdiffie1-0.10.49-4.1mdk.ia64.rpm
 8635c1d2707c026c0f8026dfccc3a6c1  ia64/8.1/RPMS/libdiffie1-devel-0.10.49-4.1mdk.ia64.rpm
 7258fbf7a30dae9da9418bbd11baeca8  ia64/8.1/RPMS/libmirrordirz1-0.10.49-4.1mdk.ia64.rpm
 e0f35d1d2685b2a9a3cf7ec3c8231102  ia64/8.1/RPMS/libmirrordirz1-devel-0.10.49-4.1mdk.ia64.rpm
 7b6daba21f5b12bdb75c712a467abfb6  ia64/8.1/RPMS/mirrordir-0.10.49-4.1mdk.ia64.rpm
 a3418ab0c7871a9dae31c6d0c4ec8297  ia64/8.1/SRPMS/mirrordir-0.10.49-4.1mdk.src.rpm

 Corporate Server 1.0.1:
 2d27c00ee4d2ab51a6aadb8f40dad47f  1.0.1/RPMS/mirrordir-0.10.44-4.2mdk.i586.rpm
 338b5c6dcbb77ed47af0872d7ab25546  1.0.1/SRPMS/mirrordir-0.10.44-4.2mdk.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 

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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