National Cyber-Alert System

Vulnerability Summary for CVE-2006-2444

Overview

The snmp_trap_decode function in the SNMP NAT helper for Linux kernel before 2.6.16.18 allows remote attackers to cause a denial of service (crash) via unspecified remote attack vectors that cause failures in snmp_trap_decode that trigger (1) frees of random memory or (2) frees of previously-freed memory (double-free) by snmp_trap_decode as well as its calling function, as demonstrated via certain test cases of the PROTOS SNMP test suite.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

Solution

Successful exploitation requires that the "ip_nat_snmp_basic" module is loaded and that traffic NAT is enabled on port 161 or 162. This vulnerability is addressed in the following product release: Linux, Linux Kernel, 2.6.16.18}

References to Advisories, Solutions, and Tools

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US-CERT Vulnerability Note: VU#681569

Name: VU#681569

Hyperlink:http://www.kb.cert.org/vuls/id/681569

External Source: CONFIRM

Name: http://www.kernel.org/git/?p=linux/kernel/git/stable/linux-2.6.16.y.git;a=commit;h=1db6b5a66e93ff125ab871d6b3f7363412cc87e8

Type: Patch Information

Hyperlink:http://www.kernel.org/git/?p=linux/kernel/git/stable/linux-2.6.16.y.git;a=commit;h=1db6b5a66e93ff125ab871d6b3f7363412cc87e8

External Source: SECUNIA

Name: 20225

Type: Advisory; Patch Information

Hyperlink:http://secunia.com/advisories/20225

External Source: CONFIRM

Name: http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.16.18

Type: Patch Information

Hyperlink:http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.16.18

External Source: XF

Name: linux-snmp-nathelper-dos(26594)

Hyperlink:http://xforce.iss.net/xforce/xfdb/26594

External Source: UBUNTU

Name: USN-302-1

Hyperlink:http://www.ubuntu.com/usn/usn-302-1

External Source: BID

Name: 18081

Hyperlink:http://www.securityfocus.com/bid/18081

External Source: REDHAT

Name: RHSA-2006:0580

Hyperlink:http://www.redhat.com/support/errata/RHSA-2006-0580.html

External Source: VUPEN

Name: ADV-2006-1916

Hyperlink:http://www.frsirt.com/english/advisories/2006/1916

External Source: SECTRACK

Name: 1016153

Hyperlink:http://securitytracker.com/id?1016153

External Source: SECUNIA

Name: 20716

Hyperlink:http://secunia.com/advisories/20716

External Source: SECUNIA

Name: 20182

Hyperlink:http://secunia.com/advisories/20182

External Source: MANDRIVA

Name: MDKSA-2006:087

Hyperlink:http://frontal2.mandriva.com/security/advisories?name=MDKSA-2006:087

External Source: REDHAT

Name: RHSA-2006:0617

Hyperlink:http://www.redhat.com/support/errata/RHSA-2006-0617.html

External Source: REDHAT

Name: RHSA-2006:0437

Hyperlink:http://www.redhat.com/support/errata/RHSA-2006-0437.html

External Source: OSVDB

Name: 25750

Hyperlink:http://www.osvdb.org/25750

External Source: SUSE

Name: SUSE-SA:2006:064

Hyperlink:http://www.novell.com/linux/security/advisories/2006_64_kernel.html

External Source: SUSE

Name: SUSE-SA:2006:047

Hyperlink:http://www.novell.com/linux/security/advisories/2006_47_kernel.html

External Source: SUSE

Name: SUSE-SA:2006:042

Hyperlink:http://www.novell.com/linux/security/advisories/2006_42_kernel.html

External Source: MANDRIVA

Name: MDKSA-2006:087

Hyperlink:http://www.mandriva.com/security/advisories?name=MDKSA-2006:087

External Source: DEBIAN

Name: DSA-1184

Hyperlink:http://www.debian.org/security/2006/dsa-1184

External Source: DEBIAN

Name: DSA-1183

Hyperlink:http://www.debian.org/security/2006/dsa-1183

External Source: CONFIRM

Name: http://support.avaya.com/elmodocs2/security/ASA-2006-203.htm

Hyperlink:http://support.avaya.com/elmodocs2/security/ASA-2006-203.htm

External Source: CONFIRM

Name: http://support.avaya.com/elmodocs2/security/ASA-2006-180.htm

Hyperlink:http://support.avaya.com/elmodocs2/security/ASA-2006-180.htm

External Source: SECUNIA

Name: 22822

Hyperlink:http://secunia.com/advisories/22822

External Source: SECUNIA

Name: 22174

Hyperlink:http://secunia.com/advisories/22174

External Source: SECUNIA

Name: 22093

Hyperlink:http://secunia.com/advisories/22093

External Source: SECUNIA

Name: 22082

Hyperlink:http://secunia.com/advisories/22082

External Source: SECUNIA

Name: 21983

Hyperlink:http://secunia.com/advisories/21983

External Source: SECUNIA

Name: 21605

Hyperlink:http://secunia.com/advisories/21605

External Source: SECUNIA

Name: 21498

Hyperlink:http://secunia.com/advisories/21498

External Source: SECUNIA

Name: 21179

Hyperlink:http://secunia.com/advisories/21179

External Source: SECUNIA

Name: 21136

Hyperlink:http://secunia.com/advisories/21136

External Source: SECUNIA

Name: 21035

Hyperlink:http://secunia.com/advisories/21035