TITLE: Mailman Attachment Filename Scrubbing Denial of Service
SECUNIA ADVISORY ID: SA17511
VERIFY ADVISORY: http://secunia.com/advisories/17511/
CRITICAL: Moderately critical
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
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