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CVE-2010-0437

Impact:
Important
Public Date:
2008-09-09
IAVA:
2011-A-0066
CWE:
CWE-476
Bugzilla:
563781: CVE-2010-0437 kernel: ipv6: fix ip6_dst_lookup_tail() NULL pointer dereference

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 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

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

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
Red Hat Enterprise Linux EUS (v. 5.3 server) (kernel) RHSA-2010:0149 2010-03-17
Red Hat Enterprise Linux EUS (v. 5.2 server) (kernel) RHSA-2010:0148 2010-03-17
MRG Grid for RHEL 5 Server (kernel-rt) RHSA-2010:0161 2010-03-23
Red Hat Enterprise Linux 5 (kernel) RHSA-2010:0147 2010-03-17

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