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TITLE:
ClamAV "vba_read_project_strings()" Double-Free Vulnerability

SECUNIA ADVISORY ID:
SA43392

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/43392/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=43392

RELEASE DATE:
2011-03-02

DISCUSS ADVISORY:
http://secunia.com/advisories/43392/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/43392/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=43392

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A vulnerability has been reported in ClamAV, which can be exploited
by malicious people to cause a DoS (Denial of Service) and
potentially compromise a vulnerable system.

The vulnerability is caused due to a double-free error within the
"vba_read_project_strings()" function in libclamav/vba_extract.c and
can be exploited via specially crafted files.

The vulnerability is reported in versions prior to 0.97.

SOLUTION:
Update to version 0.97.

PROVIDED AND/OR DISCOVERED BY:
Reported by Török Edwin in a ClamAV bug report.

ORIGINAL ADVISORY:
https://wwws.clamav.net/bugzilla/show_bug.cgi?id=2486
http://git.clamav.net/gitweb?p=clamav-devel.git;a=commitdiff;h=d21fb8d975f8c9688894a8cef4d50d977022e09f

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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

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

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

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