Vulnerability Note VU#967236

Sun Solaris fails to properly process ICMP packets

Overview

Sun Solaris fails to properly handle ICMP packets, which may allow a remote, unauthenticated attacker to cause a denial of service.

I. Description

Sun Solaris 10 contains an unspecified error that can cause a system panic when handling a specially crafted ICMP packet. Note that Solaris 8 and 9 are not affected by this issue.

II. Impact

A remote, unauthenticated attacker may be able to create a denial-of-service condition by causing a system panic on a vulnerable Sun Solaris system.

III. Solution

Apply a patch

This issue is addressed by patch 118833-28 for Solaris 10 on SPARC systems, and patch 118855-28 for Solaris 10 on x86 systems. More details are available in SunSolve Alert 102697.

Filter ICMP traffic

This vulnerability can be mitigated by filtering ICMP traffic at the network perimeter and by filtering ICMP at the host level, such as with ipfilter.

Systems Affected

Vendor	Status	Date Notified	Date Updated
Sun Microsystems, Inc.	Vulnerable	31-Jan-2007

References

http://sunsolve.sun.com/search/document.do?assetkey=1-26-102697-1
http://secunia.com/advisories/23982/
http://securitytracker.com/alerts/2007/Jan/1017574.html
http://www.securityfocus.com/bid/22323

Credit

Thanks to Sun for reporting this vulnerability.

This document was written by Will Dormann.

Other Information

Date Public:	2007-01-31
Date First Published:	2007-01-31
Date Last Updated:	2007-02-07
CERT Advisory:
CVE-ID(s):
NVD-ID(s):
US-CERT Technical Alerts:
Metric:	2.41
Document Revision:	8

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Produced 2007 by US-CERT, a government organization
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