[SA13177] UNARJ Filename Handling Buffer Overflow Vulnerability

Type securityvulns
Reporter Securityvulns
Modified 2004-11-13T00:00:00


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TITLE: UNARJ Filename Handling Buffer Overflow Vulnerability


VERIFY ADVISORY: http://secunia.com/advisories/13177/

CRITICAL: Moderately critical

IMPACT: System access

WHERE: >From remote

SOFTWARE: UNARJ 2.x http://secunia.com/product/4036/

DESCRIPTION: A vulnerability has been reported in UNARJ, which potentially can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error within the handling of long filenames in archives. This can be exploited to cause a buffer overflow by tricking a user into opening a malicious archive with a specially crafted path.

Successful exploitation may allow execution of arbitrary code.

SOLUTION: The vendor reports that UNARJ is just a demonstration product and should not be used on production systems.

The vendor recommends users to use ARJ instead.

PROVIDED AND/OR DISCOVERED BY: First reported in a Fedora advisory.

ORIGINAL ADVISORY: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=138468

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