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Fencer Intel
high 7.8

CVE-2010-0437 in the critical feed json

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…

published 16y ago modified 4mo ago also EUVD-2010-0468

cvss
7.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
12.3%
EPSS 12.3% chance of exploitation in 30 days, percentile 96%
public exploits
1
Exploit-DB

Summary

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.

Patch / fix

  • kernel RHEL 5 2.6.18-164.15.1.el5
  • kernel-PAE RHEL 5 2.6.18-164.15.1.el5
  • kernel-xen RHEL 5 2.6.18-164.15.1.el5
  • kernel-kdump RHEL 5 2.6.18-164.15.1.el5
  • kernel-debuginfo-common RHEL 5 2.6.18-164.15.1.el5
  • kernel-rt enterprise mrg 1 2.6.24.7-149.el5rt
  • kernel-rt-trace enterprise mrg 1 2.6.24.7-149.el5rt
  • kernel-rt-vanilla enterprise mrg 1 2.6.24.7-149.el5rt

red hat advisories RHSA-2010:0147RHSA-2010:0161RHSA-2010:0149RHSA-2010:0148

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2010-0437 updated cvss 6.1

kernel: ipv6: fix ip6_dst_lookup_tail() NULL pointer dereference

  • Red Hat MRG Realtime for RHEL 5 Server kernel-rt 2.6.24.7-149.el5rt, kernel-rt-trace 2.6.24.7-149.el5rt, kernel-rt-vanilla 2.6.24.7-149.el5rt, kernel-rt-debuginfo-common 2.6.24.7-149.el5rt
    fixed: vendor fix RHSA-2010:0161
  • Red Hat Enterprise Linux (v. 5 server) kernel 2.6.18-164.15.1.el5, kernel-PAE 2.6.18-164.15.1.el5, kernel-xen 2.6.18-164.15.1.el5, kernel-kdump 2.6.18-164.15.1.el5, kernel-debuginfo-common 2.6.18-164.15.1.el5 Red Hat Enterprise Linux Desktop (v. 5 client) kernel 2.6.18-164.15.1.el5, kernel-PAE 2.6.18-164.15.1.el5, kernel-xen 2.6.18-164.15.1.el5, kernel-kdump 2.6.18-164.15.1.el5, kernel-debuginfo-common 2.6.18-164.15.1.el5
    fixed: vendor fix RHSA-2010:0147
  • Red Hat Enterprise Linux EUS (v. 5.2 server) kernel 2.6.18-92.1.38.el5, kernel-PAE 2.6.18-92.1.38.el5, kernel-xen 2.6.18-92.1.38.el5, kernel-kdump 2.6.18-92.1.38.el5, kernel-debuginfo-common 2.6.18-92.1.38.el5
    fixed: vendor fix RHSA-2010:0148
  • Red Hat Enterprise Linux EUS (v. 5.3 server) kernel 2.6.18-128.14.1.el5, kernel-PAE 2.6.18-128.14.1.el5, kernel-xen 2.6.18-128.14.1.el5, kernel-kdump 2.6.18-128.14.1.el5, kernel-debuginfo-common 2.6.18-128.14.1.el5
    fixed: vendor fix RHSA-2010:0149

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. First public exploit (EDB-33635)
  2. Published

Exploit prediction

12.33% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-33635 Linux Kernel 2.6.x - 'net/ipv6/ip6_output.c' Null Pointer Dereference Denial of Service dos, 2008-07-31
  • bugzilla.kernel.org http://bugzilla.kernel.org/show_bug.cgi?id=11469 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C

Classification

Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.