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TITLE:
Sun Solaris RPC Services Library Denial of Service

SECUNIA ADVISORY ID:
SA27183

VERIFY ADVISORY:
http://secunia.com/advisories/27183/

CRITICAL:
Not critical

IMPACT:
DoS

WHERE:
>From local network

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

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

The vulnerability is caused due to an unspecified error within the
Solaris RPC Services Library (librpcsvc), which can be exploited by
e.g.:

1) Malicious, local users to crash the automountd daemon by using it
to access NFS servers with a large number of exported file systems.

Successful exploitation results in a DoS due to prohibited access to
the networked file system, but requires that automatic mount points
for NFS servers with a large number of exports are set up.

2) Malicious users to crash the mountd daemon by using it on an NFS
server with a large number of exported file systems or long access
lists.

Successful exploitation results in a DoS due to prohibited access to
the networked file system, but requires that the system is configured
as NFS server with a large number of exported file systems or long
access lists.

SOLUTION:
Apply patches.

-- SPARC Platform --

Solaris 8:
Apply patch 127548-01 or later

Solaris 9:
Apply patch 123396-01 or later

Solaris 10:
Apply patch 124444-01 or later

-- x86 Platform --

Solaris 8:
Apply patch 127549-01 or later

Solaris 9:
Apply patch 123397-01 or later

Solaris 10:
Apply patch 124445-01 or later

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

ORIGINAL ADVISORY:
http://sunsolve.sun.com/search/document.do?assetkey=1-26-103082-1

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