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Secunia Security Advisory 40655

Secunia Security Advisory 40655
Posted Jul 21, 2010
Authored by Secunia | Site secunia.com

Secunia Security Advisory - A vulnerability has been reported in ncompress, which can be exploited by malicious people to potentially compromise a user's system.

tags | advisory
SHA-256 | 444bc855e0b4988e69d75c942448e147fdac9ef024c66ddde98d54a4eae48d4a

Secunia Security Advisory 40655

Change Mirror Download
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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
* Secunia Analysis
* Systems Affected
* Approve Distribution
* Remediation Status
* Secunia CVSS Score
* CVSS

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/

----------------------------------------------------------------------

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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