Lucene search

K
securityvulnsSecurityvulnsSECURITYVULNS:DOC:21020
HistoryDec 14, 2008 - 12:00 a.m.

[IVIZ-08-011] ClamAV lzh unpacking segmentation fault

2008-12-1400:00:00
vulners.com
14

[ iViZ Security Advisory 08-011 10/12/2008 ]

iViZ Techno Solutions Pvt. Ltd.
http://www.ivizsecurity.com

  • Title: ClamAV lzh unpacking segmentation fault
  • Date: 10/12/2008
  • Software: ClamAV 0.93.3 and prior

–[ Synopsis:

Clamav uses an external unpacker, which can be deterministically crashed,
when processing corrupted LZH files.

–[ Affected Software:

  • ClamAV 0.93.3 and prior

–[ Non Affected Software:

  • ClamAV 0.94 and newer

–[ Impact:

Remote DoS, possibly remote code execution.

–[ Vendor response:

  • "Support for external unpackers has been dropped in 0.94 for
    security issues".

–[ Credits:

This vulnerability was discovered by Security Researcher
Jonathan Brossard from iViZ Techno Solutions Pvt. Ltd.

–[ Disclosure timeline:

  • First private disclosure to vendor on October 14th 2008
  • First vendor reply on October 15th 2008 : issue fixed.

–[ Reference:

http://www.ivizsecurity.com/security-advisory.html