National Cyber-Alert System
Vulnerability Summary for CVE-2007-3642
Original release date:07/10/2007
Last revised:09/05/2008
Source:
US-CERT/NIST
Overview
The decode_choice function in net/netfilter/nf_conntrack_h323_asn1.c in the Linux kernel before 2.6.20.15, 2.6.21.x before 2.6.21.6, and before 2.6.22 allows remote attackers to cause a denial of service (crash) via an encoded, out-of-range index value for a choice field, which triggers a NULL pointer dereference.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
6.9
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type:Allows disruption of serviceUnknown
- Official Statement from Red Hat (07/10/2007)
-
Not vulnerable. These issues did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 2.1, 3, 4, or 5.
References to Advisories, Solutions, and Tools
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External Source: SECUNIA
Name: 25955
Type: Advisory; Patch Information
External Source: UBUNTU
Name: USN-510-1
External Source: BID
Name: 24818
External Source: MANDRIVA
Name: MDKSA-2007:195
External Source: VUPEN
Name: ADV-2007-2466
Type: Advisory
External Source: DEBIAN
Name: DSA-1356
External Source: SECUNIA
Name: 27212
Type: Advisory
External Source: SECUNIA
Name: 26450
Type: Advisory
External Source: CONFIRM
Name: http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22
External Source: CONFIRM
Name: http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.21.6
External Source: CONFIRM
Name: http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.20.15
External Source: CONFIRM
Name: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=25845b5155b55cd77e42655ec24161ba3feffa47