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[SA33751] Sun Solaris IP Minor Numbers Denial of Service Vulnerability

From: Secunia Security Advisories (sec-advsecunia.com)
Date: Mon Feb 02 2009 - 17:50:05 CST


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TITLE:
Sun Solaris IP Minor Numbers Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA33751

VERIFY ADVISORY:
http://secunia.com/advisories/33751/

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

The vulnerability is caused due to an error in the IP(7p) (Internet
Protocol) implementation related to the allocation of minor numbers.
This can be exploited to open an overly large number of sockets in
32-bit applications and e.g. prevent login attempts from completing
successfully.

The vulnerability is reported in Solaris 8, 9, and 10 for both the
SPARC and x86 platforms, and OpenSolaris builds prior to snv_82.

SOLUTION:
Apply patches.

-- SPARC Platform --

Solaris 8:
Apply patch 116965-34 or later.

Solaris 9:
Apply patch 114344-37 or later.

Solaris 10:
Apply patch 138888-01 or later.

OpenSolaris:
Fixed in build snv_82.

-- x86 Platform --

Solaris 8:
Apply patch 116966-33 or later.

Solaris 9:
Apply patch 119435-25 or later.

Solaris 10:
Apply patch 138889-01 or later.

OpenSolaris:
Fixed in build snv_82.

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

ORIGINAL ADVISORY:
http://sunsolve.sun.com/search/document.do?assetkey=1-66-248026-1

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