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Security Advisory sendmail security update

Advisory: RHSA-2006:0265-9
Type: Security Advisory
Severity: Critical
Issued on: 2006-03-22
Last updated on: 2006-03-22
Affected Products: Red Hat Enterprise Linux AS (v. 2.1)
Red Hat Enterprise Linux ES (v. 2.1)
Red Hat Enterprise Linux WS (v. 2.1)
Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor
CVEs (cve.mitre.org): CVE-2006-0058

Details

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.

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.


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.

Updated packages

Red Hat Enterprise Linux AS (v. 2.1)

SRPMS:
sendmail-8.12.11-4.21AS.8.src.rpm
File outdated by:  RHSA-2006:0515
    MD5: f5abfd6edcababd2bab542f836950d16
 
IA-32:
sendmail-8.12.11-4.21AS.8.i386.rpm
File outdated by:  RHSA-2006:0515
    MD5: aaf362f3da9cfbeac698bd0cae38849a
sendmail-cf-8.12.11-4.21AS.8.i386.rpm
File outdated by:  RHSA-2006:0515
    MD5: edf605382c1edceeb3520494ef1defa4
sendmail-devel-8.12.11-4.21AS.8.i386.rpm
File outdated by:  RHSA-2006:0515
    MD5: f410e2be904b29607c8b57c598d6e86a
sendmail-doc-8.12.11-4.21AS.8.i386.rpm
File outdated by:  RHSA-2006:0515
    MD5: 7920ac760db2f52d85c942817b0a1a84
 
IA-64:
sendmail-8.12.11-4.21AS.8.ia64.rpm
File outdated by:  RHSA-2006:0515
    MD5: 87d8a88331ca8d816d779129033a2545
sendmail-cf-8.12.11-4.21AS.8.ia64.rpm
File outdated by:  RHSA-2006:0515
    MD5: 7c1f0fbd3490bf7007115c19aa320a79
sendmail-devel-8.12.11-4.21AS.8.ia64.rpm
File outdated by:  RHSA-2006:0515
    MD5: 7fd463f112b365cb9d8b63eebaa67718
sendmail-doc-8.12.11-4.21AS.8.ia64.rpm
File outdated by:  RHSA-2006:0515
    MD5: 4d6b4f4cccb65dad389887ea6d974181
 
Red Hat Enterprise Linux ES (v. 2.1)

SRPMS:
sendmail-8.12.11-4.21AS.8.src.rpm
File outdated by:  RHSA-2006:0515
    MD5: f5abfd6edcababd2bab542f836950d16
 
IA-32:
sendmail-8.12.11-4.21AS.8.i386.rpm
File outdated by:  RHSA-2006:0515
    MD5: aaf362f3da9cfbeac698bd0cae38849a
sendmail-cf-8.12.11-4.21AS.8.i386.rpm
File outdated by:  RHSA-2006:0515
    MD5: edf605382c1edceeb3520494ef1defa4
sendmail-devel-8.12.11-4.21AS.8.i386.rpm
File outdated by:  RHSA-2006:0515
    MD5: f410e2be904b29607c8b57c598d6e86a
sendmail-doc-8.12.11-4.21AS.8.i386.rpm
File outdated by:  RHSA-2006:0515
    MD5: 7920ac760db2f52d85c942817b0a1a84
 
Red Hat Enterprise Linux WS (v. 2.1)

SRPMS:
sendmail-8.12.11-4.21AS.8.src.rpm
File outdated by:  RHSA-2006:0515
    MD5: f5abfd6edcababd2bab542f836950d16
 
IA-32:
sendmail-8.12.11-4.21AS.8.i386.rpm
File outdated by:  RHSA-2006:0515
    MD5: aaf362f3da9cfbeac698bd0cae38849a
sendmail-cf-8.12.11-4.21AS.8.i386.rpm
File outdated by:  RHSA-2006:0515
    MD5: edf605382c1edceeb3520494ef1defa4
sendmail-devel-8.12.11-4.21AS.8.i386.rpm
File outdated by:  RHSA-2006:0515
    MD5: f410e2be904b29607c8b57c598d6e86a
sendmail-doc-8.12.11-4.21AS.8.i386.rpm
File outdated by:  RHSA-2006:0515
    MD5: 7920ac760db2f52d85c942817b0a1a84
 
Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor

SRPMS:
sendmail-8.12.11-4.21AS.8.src.rpm
File outdated by:  RHSA-2006:0515
    MD5: f5abfd6edcababd2bab542f836950d16
 
IA-64:
sendmail-8.12.11-4.21AS.8.ia64.rpm
File outdated by:  RHSA-2006:0515
    MD5: 87d8a88331ca8d816d779129033a2545
sendmail-cf-8.12.11-4.21AS.8.ia64.rpm
File outdated by:  RHSA-2006:0515
    MD5: 7c1f0fbd3490bf7007115c19aa320a79
sendmail-devel-8.12.11-4.21AS.8.ia64.rpm
File outdated by:  RHSA-2006:0515
    MD5: 7fd463f112b365cb9d8b63eebaa67718
sendmail-doc-8.12.11-4.21AS.8.ia64.rpm
File outdated by:  RHSA-2006:0515
    MD5: 4d6b4f4cccb65dad389887ea6d974181
 

Bugs fixed (see bugzilla for more information)

184465 - CVE-2006-0058 Sendmail race condition issue


References



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