Mandrake alert: Updated xinetd packages fix DoS vulnerability

Posted by dave on May 14, 2003 3:37 PM EDT
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A vulnerability was discovered in xinetd where memory was allocated and never freed if a connection was refused for any reason. Because of this bug, an attacker could crash the xinetd server, making unavailable all of the services it controls. Other flaws were also discovered that could cause incorrect operation in certain strange configurations.

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________________________________________________________________________

                Mandrake Linux Security Update Advisory
________________________________________________________________________

Package name:           xinetd
Advisory ID:            MDKSA-2003:056
Date:                   May 14th, 2003

Affected versions:	8.2, 9.0, 9.1, Corporate Server 2.1,
			Multi Network Firewall 8.2,
			Single Network Firewall 7.2
________________________________________________________________________

Problem Description:

 A vulnerability was discovered in xinetd where memory was allocated and
 never freed if a connection was refused for any reason.  Because of
 this bug, an attacker could crash the xinetd server, making
 unavailable all of the services it controls.  Other flaws were also
 discovered that could cause incorrect operation in certain strange
 configurations.
 
 These issues have been fixed upstream in xinetd version 2.3.11 which
 are provided in this update.
________________________________________________________________________

References:
  
  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0211
________________________________________________________________________

Updated Packages:
  
 Corporate Server 2.1:
 a9121e4a9d10ceae2432619f2b1cb39d  corporate/2.1/RPMS/xinetd-2.3.11-1.1mdk.i586.rpm
 92bd935f2578bb67f90d9e748a1bb636  corporate/2.1/RPMS/xinetd-ipv6-2.3.11-1.1mdk.i586.rpm
 48c1a13b666f519b893f9d36c2d440c4  corporate/2.1/SRPMS/xinetd-2.3.11-1.1mdk.src.rpm

 Mandrake Linux 8.2:
 b4eff824d68251d41e4bac24cf215a74  8.2/RPMS/xinetd-2.3.11-1.1mdk.i586.rpm
 994553078c5caf6853422ad51a08405c  8.2/RPMS/xinetd-ipv6-2.3.11-1.1mdk.i586.rpm
 48c1a13b666f519b893f9d36c2d440c4  8.2/SRPMS/xinetd-2.3.11-1.1mdk.src.rpm

 Mandrake Linux 8.2/PPC:
 7dab7aa553e059299a24ebaab552fd01  ppc/8.2/RPMS/xinetd-2.3.11-1.1mdk.ppc.rpm
 ffa308c43027a43b3b050c68841b12e9  ppc/8.2/RPMS/xinetd-ipv6-2.3.11-1.1mdk.ppc.rpm
 48c1a13b666f519b893f9d36c2d440c4  ppc/8.2/SRPMS/xinetd-2.3.11-1.1mdk.src.rpm

 Mandrake Linux 9.0:
 a9121e4a9d10ceae2432619f2b1cb39d  9.0/RPMS/xinetd-2.3.11-1.1mdk.i586.rpm
 92bd935f2578bb67f90d9e748a1bb636  9.0/RPMS/xinetd-ipv6-2.3.11-1.1mdk.i586.rpm
 48c1a13b666f519b893f9d36c2d440c4  9.0/SRPMS/xinetd-2.3.11-1.1mdk.src.rpm

 Mandrake Linux 9.1:
 b7ad521d0068d894d3e4255ee628ade8  9.1/RPMS/xinetd-2.3.11-1.1mdk.i586.rpm
 2c12b8ae701f10c165244f4ed9e71717  9.1/RPMS/xinetd-ipv6-2.3.11-1.1mdk.i586.rpm
 48c1a13b666f519b893f9d36c2d440c4  9.1/SRPMS/xinetd-2.3.11-1.1mdk.src.rpm

 Mandrake Linux 9.1/PPC:
 273514196962d9ed8065475d865e36ac  ppc/9.1/RPMS/xinetd-2.3.11-1.1mdk.ppc.rpm
 82ab5d4c702b234f47f31a64d6874e56  ppc/9.1/RPMS/xinetd-ipv6-2.3.11-1.1mdk.ppc.rpm
 48c1a13b666f519b893f9d36c2d440c4  ppc/9.1/SRPMS/xinetd-2.3.11-1.1mdk.src.rpm

 Multi Network Firewall 8.2:
 b4eff824d68251d41e4bac24cf215a74  mnf8.2/RPMS/xinetd-2.3.11-1.1mdk.i586.rpm
 994553078c5caf6853422ad51a08405c  mnf8.2/RPMS/xinetd-ipv6-2.3.11-1.1mdk.i586.rpm
 48c1a13b666f519b893f9d36c2d440c4  mnf8.2/SRPMS/xinetd-2.3.11-1.1mdk.src.rpm

 Single Network Firewall 7.2:
 7128cefb35c9a7e2ba62f2c2b91f0302  snf7.2/RPMS/xinetd-2.3.11-1.2mdk.i586.rpm
 d9dbed2c5d7ef2e993593c204ee3d4cd  snf7.2/RPMS/xinetd-ipv6-2.3.11-1.2mdk.i586.rpm
 cad5c246f04dae6ff97bdfb4018d1f6e  snf7.2/SRPMS/xinetd-2.3.11-1.2mdk.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 <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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