5 - USN-26-1

Executive Summary

Summary
Title	bogofilter vulnerability

Informations
Name	USN-26-1	First vendor Publication	2004-11-17
Vendor	Ubuntu	Last vendor Modification	2004-11-17
Severity (Vendor)	N/A	Revision	N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score	NA
Base Score	NA	Environmental Score	NA
impact SubScore	NA	Temporal Score	NA
Exploitabality Sub Score	NA

Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score	5	Attack Range	Network
Cvss Impact Score	2.9	Attack Complexity	Low
Cvss Expoit Score	10	Authentication	None Required
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Detail

A security issue affects the following Ubuntu releases:

Ubuntu 4.10 (Warty Warthog)

The following packages are affected:

bogofilter

The problem can be corrected by upgrading the affected package to version 0.92.0-1ubuntu0.1. In general, a standard system upgrade is sufficient to effect the necessary changes.

Details follow:

Antti-Juhani Kaijanaho discovered a Denial of Service vulnerability in bogofilter. The quoted-printable decoder handled certain Base-64 encoded strings in an invalid way which caused a buffer overflow and an immediate program abort.

The exact impact depends on the way bogofilter is integrated into the system. In common setups, the mail that contains such malformed headers is deferred by the mail delivery agent and remains in the queue, where it will eventually bounce back to the sender.