AusCERT - AA-2009.0082 -- [Win][UNIX/Linux] -- ClamAV: Denial of Service

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AA-2009.0082 -- [Win][UNIX/Linux] -- ClamAV: Denial of Service
Date: 06 April 2009

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AA-2009.0082                  AUSCERT Advisory

                             [Win][UNIX/Linux]
                         ClamAV: Denial of Service
                               6 April 2009
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        AusCERT Advisory Summary
        ------------------------

Product:              ClamAV
Publisher:            ClamAV
Operating System:     UNIX variants (UNIX, Linux, OSX)
                      Windows
Impact:               Denial of Service
Access:               Remote/Unauthenticated
CVE Names:            CVE-2009.1241
Member content until: Friday, May 01 2009

Original Bulletin:    http://svn.clamav.net/svn/clamav-devel/trunk/ChangeLog

Revision History:     April  6 2009: Added CVE
                      April  3 2009: Initial Release

OVERVIEW:

        ClamAV have released version 0.95 correcting a security vulnerability.


IMPACT:

        This vulnerability could cause a denial of service due to ClamAV's
        dependence on the uncompressed size field in RAR headers. [1]


MITIGATION:

        Upgrade to version 0.95 available from the the vendor's website. [2]
        

REFERENCES:

        [1] ClamAV 0.95 ChangeLog
            http://svn.clamav.net/svn/clamav-devel/trunk/ChangeLog

        [2] ClamAV Download Page
            http://www.clamav.net/download/

AusCERT has made every effort to ensure that the information contained
in this document is accurate.  However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. AusCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.

If you believe that your computer system has been compromised or attacked in 
any way, we encourage you to let us know by completing the secure National IT 
Incident Reporting Form at:

        http://www.auscert.org.au/render.html?it=3192

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
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