Synopsis: Moderate: postfix security update
Issue Date: 2011-05-31
CVE Numbers: CVE-2011-1720
—
Postfix is a Mail Transport Agent (MTA), supporting LDAP, SMTP AUTH (SASL),
and TLS.
A heap-based buffer over-read flaw was found in the way Postfix performed
SASL handlers management for SMTP sessions, when Cyrus SASL authentication
was enabled. A remote attacker could use this flaw to cause the Postfix
smtpd server to crash via a specially-crafted SASL authentication request.
The smtpd process was automatically restarted by the postfix master process
after the time configured with service_throttle_time elapsed.
(CVE-2011-1720)
Note: Cyrus SASL authentication for Postfix is not enabled by default.
Red Hat would like to thank the CERT/CC for reporting this issue. Upstream
acknowledges Thomas Jarosch of Intra2net AG as the original reporter.
Users of Postfix are advised to upgrade to these updated packages, which
contain a backported patch to resolve this issue. After installing this
update, the postfix service will be restarted automatically.
—
SL4
x86_64
postfix-2.2.10-1.5.el4.x86_64.rpm
postfix-pflogsumm-2.2.10-1.5.el4.x86_64.rpm
i386
postfix-2.2.10-1.5.el4.i386.rpm
postfix-pflogsumm-2.2.10-1.5.el4.i386.rpm
SL5
x86_64
postfix-2.3.3-2.3.el5_6.x86_64.rpm
postfix-pflogsumm-2.3.3-2.3.el5_6.x86_64.rpm
i386
postfix-2.3.3-2.3.el5_6.i386.rpm
postfix-pflogsumm-2.3.3-2.3.el5_6.i386.rpm
SL6
x86_64
postfix-2.6.6-2.2.el6_1.x86_64.rpm
postfix-perl-scripts-2.6.6-2.2.el6_1.x86_64.rpm
i386
postfix-2.6.6-2.2.el6_1.i686.rpm
postfix-perl-scripts-2.6.6-2.2.el6_1.i686.rpm
– Scientific Linux Development Team
