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Debian DSA-2566-1 : exim4 - heap-based buffer overflow

medium Nessus Plugin ID 62721

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Synopsis

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

Description

It was discovered that Exim, a mail transport agent, is not properly handling the decoding of DNS records for DKIM. Specifically, crafted records can yield to a heap-based buffer overflow. An attacker can exploit this flaw to execute arbitrary code.

Solution

Upgrade the exim4 packages.

For the stable distribution (squeeze), this problem has been fixed in version 4.72-6+squeeze3.

See Also

https://packages.debian.org/source/squeeze/exim4

https://www.debian.org/security/2012/dsa-2566

Plugin Details

Severity: Medium

ID: 62721

File Name: debian_DSA-2566.nasl

Version: 1.10

Type: local

Agent: unix

Published: 10/29/2012

Updated: 1/11/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:exim4, cpe:/o:debian:debian_linux:6.0

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

Patch Publication Date: 10/25/2012

Reference Information

CVE: CVE-2012-5671

DSA: 2566