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"From 2007 to 2009 vulnerabilities in a typical end-user PC almost doubled from about 220 to 420."

Non-Microsoft software to blame for increase in vulnerabilities affecting typical Windows end-users, read more:

http://secunia.com/gfx/pdf/Secunia_Half_Year_Report_2010.pdf


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TITLE:
ncompress "decompress()" Integer Underflow Vulnerability

SECUNIA ADVISORY ID:
SA40655

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/40655/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=40655

RELEASE DATE:
2010-07-22

DISCUSS ADVISORY:
http://secunia.com/advisories/40655/#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/40655/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
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 * Systems Affected
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https://ca.secunia.com/?page=viewadvisory&vuln_id=40655

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 ncompress, which can be
exploited by malicious people to potentially compromise a user's
system.

The vulnerability is caused due to an error within the "decompress()"
function in compress42.c, which can be exploited by tricking a user
into decompressing a specially crafted archive.

Note: This may only affect 64-bit systems.

This is related to:
SA38220

SOLUTION:
Update to version 4.2.4.3.

PROVIDED AND/OR DISCOVERED BY:
Aki Helin, Oulu University Secure Programming Group

ORIGINAL ADVISORY:
http://ncompress.sourceforge.net/#status

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:
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