[SA17511] Mailman Attachment Filename Scrubbing Denial of Service

2005-11-14T00:00:00
ID SECURITYVULNS:DOC:10219
Type securityvulns
Reporter Securityvulns
Modified 2005-11-14T00:00:00

Description

TITLE: Mailman Attachment Filename Scrubbing Denial of Service

SECUNIA ADVISORY ID: SA17511

VERIFY ADVISORY: http://secunia.com/advisories/17511/

CRITICAL: Moderately critical

IMPACT: DoS

WHERE: >From remote

SOFTWARE: Mailman 2.x http://secunia.com/product/1010/

DESCRIPTION: Aliet Santiesteban Sifontes has reported a vulnerability in Mailman, which potentially can be exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to "Scrubber.py" failing to handle the exception condition when Python fails to process an email file attachment that contains utf8 characters in its filename. This can potentially be exploited to cause the mailing list to stop working via a specially crafted email.

The vulnerability has been reported in version 2.1.5. Other versions may also be affected.

SOLUTION: Allow only trusted users to post to the list.

PROVIDED AND/OR DISCOVERED BY: Aliet Santiesteban Sifontes

ORIGINAL ADVISORY: Debian: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=327732


About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities.

Subscribe: http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.) http://secunia.com/about_secunia_advisories/

Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor.