Scientific Linux Security Update : cyrus-imapd on SL4.x, SL5.x, SL6.x i386/x86_64

This script is Copyright (C) 2012 Tenable Network Security, Inc.


Synopsis :

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

Description :

The cyrus-imapd packages contain a high-performance mail server with
IMAP, POP3, NNTP, and Sieve support.

It was discovered that cyrus-imapd did not flush the received commands
buffer after switching to TLS encryption for IMAP, LMTP, NNTP, and
POP3 sessions. A man-in-the-middle attacker could use this flaw to
inject protocol commands into a victim's TLS session initialization
messages. This could lead to those commands being processed by
cyrus-imapd, potentially allowing the attacker to steal the victim's
mail or authentication credentials. (CVE-2011-1926)

Users of cyrus-imapd are advised to upgrade to these updated packages,
which contain a backported patch to correct this issue. After
installing the update, cyrus-imapd will be restarted automatically.

See also :

http://www.nessus.org/u?de5bb1b7

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 5.1
(CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:P)

Family: Scientific Linux Local Security Checks

Nessus Plugin ID: 61063 ()

Bugtraq ID:

CVE ID: CVE-2011-1926