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Linux Compatible » News » March 2006 » RHSA-2006:0265-01 Critical: sendmail security update

RHSA-2006:0265-01 Critical: sendmail security update

Posted by Bob on: 03/22/2006 05:22 PM [ Print | 0 comment(s) ]

A new update is available for Red Hat Enterprise Linux. Here the announcement:




-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- ---------------------------------------------------------------------
Red Hat Security Advisory

Synopsis: Critical: sendmail security update
Advisory ID: RHSA-2006:0265-01
Advisory URL: https://rhn.redhat.com/errata/RHSA-2006-0265.html
Issue date: 2006-03-22
Updated on: 2006-03-22
Product: Red Hat Enterprise Linux
CVE Names: CVE-2006-0058
- ---------------------------------------------------------------------

1. Summary:

Updated sendmail packages to fix a security issue are now available for Red
Hat Enterprise Linux 2.1.

This update has been rated as having critical security impact by the Red
Hat Security Response Team.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS (Advanced Server) version 2.1 - i386, ia64
Red Hat Linux Advanced Workstation 2.1 - ia64
Red Hat Enterprise Linux ES version 2.1 - i386
Red Hat Enterprise Linux WS version 2.1 - i386

3. Problem description:

Sendmail is a Mail Transport Agent (MTA) used to send mail between machines.

A flaw in the handling of asynchronous signals was discovered in Sendmail.
A remote attacker may be able to exploit a race condition to execute
arbitrary code as root. The Common Vulnerabilities and Exposures project
assigned the name CVE-2006-0058 to this issue.

By default on Red Hat Enterprise Linux 2.1, Sendmail is configured to only
accept connections from the local host. Therefore only users who have
configured Sendmail to listen to remote hosts would be able to be remotely
exploited by this vulnerability.

In order to correct this issue for Red Hat Enterprise Linux 2.1 users, it
was necessary to upgrade the version of Sendmail from 8.11 as originally
shipped to Sendmail 8.12 with the addition of the security patch supplied
by Sendmail Inc. This erratum provides updated packages based on Sendmail
8.12 with a compatibility mode enabled. After updating to these packages,
users should pay close attention to their sendmail logs to ensure that the
upgrade completed sucessfully.

4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

This update is available via Red Hat Network. To use Red Hat Network,
launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

5. Bug IDs fixed (http://bugzilla.redhat.com/):

184465 - CVE-2006-0058 Sendmail race condition issue


6. RPMs required:

Red Hat Enterprise Linux AS (Advanced Server) version 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1AS/en/os/SRPMS/sendmail-8.12.11-4.21AS.8.src.rpm
f5abfd6edcababd2bab542f836950d16 sendmail-8.12.11-4.21AS.8.src.rpm

i386:
aaf362f3da9cfbeac698bd0cae38849a sendmail-8.12.11-4.21AS.8.i386.rpm
edf605382c1edceeb3520494ef1defa4 sendmail-cf-8.12.11-4.21AS.8.i386.rpm
f410e2be904b29607c8b57c598d6e86a sendmail-devel-8.12.11-4.21AS.8.i386.rpm
7920ac760db2f52d85c942817b0a1a84 sendmail-doc-8.12.11-4.21AS.8.i386.rpm

ia64:
87d8a88331ca8d816d779129033a2545 sendmail-8.12.11-4.21AS.8.ia64.rpm
7c1f0fbd3490bf7007115c19aa320a79 sendmail-cf-8.12.11-4.21AS.8.ia64.rpm
7fd463f112b365cb9d8b63eebaa67718 sendmail-devel-8.12.11-4.21AS.8.ia64.rpm
4d6b4f4cccb65dad389887ea6d974181 sendmail-doc-8.12.11-4.21AS.8.ia64.rpm

Red Hat Linux Advanced Workstation 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1AW/en/os/SRPMS/sendmail-8.12.11-4.21AS.8.src.rpm
f5abfd6edcababd2bab542f836950d16 sendmail-8.12.11-4.21AS.8.src.rpm

ia64:
87d8a88331ca8d816d779129033a2545 sendmail-8.12.11-4.21AS.8.ia64.rpm
7c1f0fbd3490bf7007115c19aa320a79 sendmail-cf-8.12.11-4.21AS.8.ia64.rpm
7fd463f112b365cb9d8b63eebaa67718 sendmail-devel-8.12.11-4.21AS.8.ia64.rpm
4d6b4f4cccb65dad389887ea6d974181 sendmail-doc-8.12.11-4.21AS.8.ia64.rpm

Red Hat Enterprise Linux ES version 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1ES/en/os/SRPMS/sendmail-8.12.11-4.21AS.8.src.rpm
f5abfd6edcababd2bab542f836950d16 sendmail-8.12.11-4.21AS.8.src.rpm

i386:
aaf362f3da9cfbeac698bd0cae38849a sendmail-8.12.11-4.21AS.8.i386.rpm
edf605382c1edceeb3520494ef1defa4 sendmail-cf-8.12.11-4.21AS.8.i386.rpm
f410e2be904b29607c8b57c598d6e86a sendmail-devel-8.12.11-4.21AS.8.i386.rpm
7920ac760db2f52d85c942817b0a1a84 sendmail-doc-8.12.11-4.21AS.8.i386.rpm

Red Hat Enterprise Linux WS version 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1WS/en/os/SRPMS/sendmail-8.12.11-4.21AS.8.src.rpm
f5abfd6edcababd2bab542f836950d16 sendmail-8.12.11-4.21AS.8.src.rpm

i386:
aaf362f3da9cfbeac698bd0cae38849a sendmail-8.12.11-4.21AS.8.i386.rpm
edf605382c1edceeb3520494ef1defa4 sendmail-cf-8.12.11-4.21AS.8.i386.rpm
f410e2be904b29607c8b57c598d6e86a sendmail-devel-8.12.11-4.21AS.8.i386.rpm
7920ac760db2f52d85c942817b0a1a84 sendmail-doc-8.12.11-4.21AS.8.i386.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://www.redhat.com/security/team/key/#package

7. References:

http://www.kb.cert.org/vuls/id/834865
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0058

8. Contact:

The Red Hat security contact is lt;secalert@redhat.comgt;. More contact
details at https://www.redhat.com/security/team/contact/

Copyright 2006 Red Hat, Inc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.1 (GNU/Linux)

iD8DBQFEIXjlXlSAg2UNWIIRAhRuAJ9csgzboVXDo8RWQHCufu5EubSTcACdF3gF
7BwYoPLST/+CwCmbyDkvbt0=
=GcVT
-----END PGP SIGNATURE-----


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