From: Secunia Security Advisories (sec-advsecunia.com)
Date: Mon Jan 05 2004 - 10:11:24 CST

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TITLE:
Mac OS X Local Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA10524

VERIFY ADVISORY:
http://www.secunia.com/advisories/10524/

CRITICAL:
Not critical

IMPACT:
DoS

WHERE:
Local system

OPERATING SYSTEM:
Apple Macintosh OS X

DESCRIPTION:
Matt Burnett has reported a vulnerability in Mac OS X, which can be
exploited by malicious, local users to cause a Denial of Service.

It is possible to crash the SecurityServer by supplying a long
password when unlocking a keychain. Many other applications rely on
the SecurityServer and fail to function when the SecurityServer
crashes.

A Proof of Concept exploit has been published.

It has been reported that SecurityServer crashes on G4 systems but
not on G5 systems.

SOLUTION:
Grant only trusted users access to affected systems.

PROVIDED AND/OR DISCOVERED BY:
Matt Burnett

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