Ubuntu 4.10 / 5.04 : fetchmail vulnerability (USN-153-1)

Medium Nessus Plugin ID 20554


The remote Ubuntu host is missing one or more security-related patches.


Ross Boylan discovered a remote buffer overflow in fetchmail. By sending invalid responses with very long UIDs, a faulty or malicious POP server could crash fetchmail or execute arbitrary code with the privileges of the user invoking fetchmail.

fetchmail is commonly run as root to fetch mail for multiple user accounts; in this case, this vulnerability could be exploited to compromise the whole system.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Update the affected fetchmail, fetchmail-ssl and / or fetchmailconf packages.

Plugin Details

Severity: Medium

ID: 20554

File Name: ubuntu_USN-153-1.nasl

Version: 1.13

Type: local

Agent: unix

Published: 2006/01/15

Updated: 2019/08/02

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 5

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:fetchmail, p-cpe:/a:canonical:ubuntu_linux:fetchmail-ssl, p-cpe:/a:canonical:ubuntu_linux:fetchmailconf, cpe:/o:canonical:ubuntu_linux:4.10, cpe:/o:canonical:ubuntu_linux:5.04

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

Patch Publication Date: 2005/07/26

Reference Information

CVE: CVE-2005-2335

USN: 153-1