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Debian DSA-1892-1 : dovecot - buffer overflow

high Nessus Plugin ID 44757

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Synopsis

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

Description

It was discovered that the SIEVE component of dovecot, a mail server that supports mbox and maildir mailboxes, is vulnerable to a buffer overflow when processing SIEVE scripts. This can be used to elevate privileges to the dovecot system user. An attacker who is able to install SIEVE scripts executed by the server is therefore able to read and modify arbitrary email messages on the system.

Solution

Upgrade the dovecot packages.

For the oldstable distribution (etch), this problem has been fixed in version 1.0.rc15-2etch5.

For the stable distribution (lenny), this problem has been fixed in version 1:1.0.15-2.3+lenny1.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=546656

https://www.debian.org/security/2009/dsa-1892

Plugin Details

Severity: High

ID: 44757

File Name: debian_DSA-1892.nasl

Version: 1.11

Type: local

Agent: unix

Published: 2/24/2010

Updated: 1/4/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:dovecot, cpe:/o:debian:debian_linux:4.0, cpe:/o:debian:debian_linux:5.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/23/2009

Reference Information

CVE: CVE-2009-2632, CVE-2009-3235

BID: 36296, 36377

CWE: 119

DSA: 1892