Debian DSA-071-1 : fetchmail - memory corruption

critical Nessus Plugin ID 14908

Synopsis

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

Description

Salvatore Sanfilippo found two remotely exploitable problems infetchmail while doing a security audit. In both the IMAP code and the POP3 code, the input isn't verified even though it's used to store a number in an array. Since no bounds checking is done this can be used by an attacker to write arbitrary data in memory. An attacker can use this if they can get a user to transfer mail from a custom IMAP or POP3 server they control.

Solution

This has been fixed in version 5.3.3-3, we recommend that you update your fetchmail packages immediately.

See Also

http://www.debian.org/security/2001/dsa-071

Plugin Details

Severity: Critical

ID: 14908

File Name: debian_DSA-071.nasl

Version: 1.19

Type: local

Agent: unix

Published: 9/29/2004

Updated: 1/4/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.3

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:2.2, p-cpe:/a:debian:debian_linux:fetchmail

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/10/2001

Reference Information

CVE: CVE-2001-1009

BID: 3164, 3166

DSA: 071