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TITLE:
OllyDbg Resource Directory Processing Integer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA48834

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/48834/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=48834

RELEASE DATE:
2012-04-16

DISCUSS ADVISORY:
http://secunia.com/advisories/48834/#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/48834/

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=48834

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:
Walied Assar has discovered a vulnerability in OllyDbg, which can be
exploited by malicious people to potentially compromise a user's
system.

The vulnerability is caused due to an integer overflow error when
allocating memory based on the size of the resource directory entry.
This can be exploited to cause a heap-based buffer overflow via a
specially crafted Portable Executable (PE) file.

Successful exploitation may allow execution of arbitrary code, but
requires tricking a user into opening a specially crafted file (does
not require debugging it).

The vulnerability is confirmed in version 1.10. Other versions may
also be affected.

SOLUTION:
Do not open files from untrusted sources.

PROVIDED AND/OR DISCOVERED BY:
Walied Assar

ORIGINAL ADVISORY:
http://waleedassar.blogspot.com/2012/03/ollydbg-resource-table-parsing-integer.html

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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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.

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