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TITLE:
Sun Solaris ACL for UFS File Systems Local Denial of Service

SECUNIA ADVISORY ID:
SA31919

VERIFY ADVISORY:
http://secunia.com/advisories/31919/

CRITICAL:
Not critical

IMPACT:
DoS

WHERE:
Local system

OPERATING SYSTEM:
Sun Solaris 8
http://secunia.com/advisories/product/94/
Sun Solaris 9
http://secunia.com/advisories/product/95/
Sun Solaris 10
http://secunia.com/advisories/product/4813/

DESCRIPTION:
A vulnerability has been reported in Sun Solaris, which can be
exploited by malicious, local users to cause a DoS (Denial of
Service).

The vulnerability is caused due to a NULL pointer dereference error
in the Solaris Access Control List (ACL) implementation for UFS file
systems, which can be exploited to cause a system panic.

Successful exploitation requires that the system has mounted a UFS
file system that is writable.

The vulnerability is reported in Sun Solaris 8, 9, and 10 for both
the SPARC and x86 platforms.

SOLUTION:
Grant only trusted users access to affected systems.

PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.

ORIGINAL ADVISORY:
http://sunsolve.sun.com/search/document.do?assetkey=1-66-242267-1

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