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security advisorysecurity issuebug fixRed Hat 5 RHSA-2010:0237-05 Low Severity: Sendmail Security Update
Updated sendmail packages that fix two security issues and several bugs are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having low security impact. Common Vulnerability Scoring System (CVSS) base scores,. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ==================================================================== Red Hat Security Advisory Synopsis: Low: sendmail security and bug fix update Advisory ID: RHSA-2010:0237-05 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2010:0237.html Issue date: 2010-03-30 CVE Names: CVE-2006-7176 CVE-2009-4565 ==================================================================== 1. Summary: Updated sendmail packages that fix two security issues and several bugs are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having low security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 2. Relevant releases/architectures: RHEL Desktop Workstation (v. 5 client) - i386, x86_64 Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64 Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64 3. Description: Sendmail is a very widely used Mail Transport Agent (MTA). MTAs deliver mail from one machine to another. Sendmail is not a client program, but rather a behind-the-scenes daemon that moves email over networks or the Internet to its final destination. The configuration of sendmail in Red Hat Enterprise Linux was found to not reject the "localhost.localdomain" domain name for email messages that come from external hosts. This could allow remote attackers to disguise spoofed messages. (CVE-2006-7176) A flaw was found in the way sendmail handled NUL characters in the CommonName field of X.509 certificates.An attacker able to get a carefully-crafted certificate signed by a trusted Certificate Authority could trick sendmail into accepting it by mistake, allowing the attacker to perform a man-in-the-middle attack or bypass intended client certificate authentication. (CVE-2009-4565) Note: The CVE-2009-4565 issue only affected configurations using TLS with certificate verification and CommonName checking enabled, which is not a typical configuration. This update also fixes the following bugs: * sendmail was unable to parse files specified by the ServiceSwitchFile option which used a colon as a separator. (BZ#512871) * sendmail incorrectly returned a zero exit code when free space was low. (BZ#299951) * the sendmail manual page had a blank space between the -qG option and parameter. (BZ#250552) * the comments in the sendmail.mc file specified the wrong path to SSL certificates. (BZ#244012) * the sendmail packages did not provide the MTA capability. (BZ#494408) All users of sendmail are advised to upgrade to these updated packages, which resolve these issues. 4. Solution: Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at 5. Bugs fixed (http://bugzilla.redhat.com/): 238540 - CVE-2006-7176 sendmail allows external mail with from address
Mar 30, 2010
•Low
Red Hat
87
security advisorycriticaldebianDebian: Security Advisory for Sendmail Package Update - Critical Libc Issue
The version of sendmail that was listed in the earlier advisory today was compiled with the wrong version of libc. This has been corrected in version 8.9.3-3slink1.0.1 . . -----BEGIN PGP SIGNED MESSAGE----- - ------------------------------------------------------------------------ Debian Security Advisory
Dec 13, 1999
•Critical
Debian
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