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CVE Database

CVE-2010-0437

Impact: Important
Public: 2008-09-09
Bugzilla: 563781: CVE-2010-0437 kernel: ipv6: fix ip6_dst_lookup_tail() NULL pointer dereference
IAVA: 2011-A-0066

Details

The MITRE CVE dictionary describes this issue as:

The ip6_dst_lookup_tail function in net/ipv6/ip6_output.c in the Linux kernel before 2.6.27 does not properly handle certain circumstances involving an IPv6 TUN network interface and a large number of neighbors, which allows attackers to cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact via unknown vectors.

Find out more about CVE-2010-0437 from the MITRE CVE dictionary and NIST NVD.

Statement

Red Hat is aware of this issue and is tracking it via the following bug:
https://bugzilla.redhat.com/CVE-2010-0437.

This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 3 and 4, as they do not include support for Optimistic Duplicate Address Detection (DAD) in IPv6. This was addressed in Red Hat Enterprise Linux 5 via https://rhn.redhat.com/errata/RHSA-2010-9419.html. A future update in Red Hat Enterprise MRG may address this flaw.

CVSS v2 metrics

Base Score: 6.1
Base Metrics: AV:A/AC:L/Au:N/C:N/I:N/A:C
Access Vector: Adjacent Network
Access Complexity: Low
Authentication: None
Confidentiality Impact: None
Integrity Impact: None
Availability Impact: Complete

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat security errata

Platform Errata Release Date
MRG Grid for RHEL 5 Server (kernel-rt) RHSA-2010:0161 March 23, 2010
Red Hat Enterprise Linux EUS (v. 5.2 server) (kernel) RHSA-2010:0148 March 17, 2010
Red Hat Enterprise Linux EUS (v. 5.3 server) (kernel) RHSA-2010:0149 March 17, 2010
Red Hat Enterprise Linux version 5 (kernel) RHSA-2010:0147 March 17, 2010

External References

This page is generated automatically and has not been checked for errors or omissions.

For clarification or corrections please contact the Red Hat Security Response Team.