Debian DSA-2258-1 : kolab-cyrus-imapd - implementation error

medium Nessus Plugin ID 55065

Synopsis

The remote Debian host is missing a security-related update.

Description

It was discovered that the STARTTLS implementation of the Kolab Cyrus IMAP server does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted IMAP, LMTP, NNTP and POP3 sessions by sending a cleartext command that is processed after TLS is in place.

Solution

Upgrade the kolab-cyrus-imapd packages.

For the oldstable distribution (lenny), this problem has been fixed in version 2.2.13-5+lenny3.

For the stable distribution (squeeze), this problem has been fixed in version 2.2.13-9.1.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629350

https://packages.debian.org/source/squeeze/kolab-cyrus-imapd

https://www.debian.org/security/2011/dsa-2258

Plugin Details

Severity: Medium

ID: 55065

File Name: debian_DSA-2258.nasl

Version: 1.9

Type: local

Agent: unix

Published: 6/13/2011

Updated: 1/4/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.5

CVSS v2

Risk Factor: Medium

Base Score: 5.1

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:kolab-cyrus-imapd, cpe:/o:debian:debian_linux:5.0, cpe:/o:debian:debian_linux:6.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Patch Publication Date: 6/11/2011

Reference Information

CVE: CVE-2011-1926

DSA: 2258