Oracle Linux 4 / 5 / 6 : postfix (ELSA-2011-0843)

Medium Nessus Plugin ID 68283


The remote Oracle Linux host is missing one or more security updates.


From Red Hat Security Advisory 2011:0843 :

Updated postfix packages that fix one security issue are now available for Red Hat Enterprise Linux 4, 5, and 6.

The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

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.


Update the affected postfix packages.

See Also

Plugin Details

Severity: Medium

ID: 68283

File Name: oraclelinux_ELSA-2011-0843.nasl

Version: $Revision: 1.6 $

Type: local

Agent: unix

Published: 2013/07/12

Modified: 2016/04/28

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:postfix, p-cpe:/a:oracle:linux:postfix-perl-scripts, p-cpe:/a:oracle:linux:postfix-pflogsumm, cpe:/o:oracle:linux:4, cpe:/o:oracle:linux:5, cpe:/o:oracle:linux:6

Required KB Items: Host/local_checks_enabled, Host/OracleLinux, Host/RedHat/release, Host/RedHat/rpm-list

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2011/06/02

Reference Information

CVE: CVE-2011-1720

BID: 47778

OSVDB: 72259

RHSA: 2011:0843