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Fencer Vulns
high 7.8

CVE-2007-4567 in the critical feed json

The ipv6_hop_jumbo function in net/ipv6/exthdrs.c in the Linux kernel before 2.6.22 does not properly validate the hop-by-hop IPv6 extended…

published 2007-12-21 18 y ago modified 2026-06-16 4 mo ago also EUVD-2007-4549

cvss
7.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
14.3%
EPSS 14.3% chance of exploitation in 30 days, percentile 96%
public exploits
1
Exploit-DB

Summary

The ipv6_hop_jumbo function in net/ipv6/exthdrs.c in the Linux kernel before 2.6.22 does not properly validate the hop-by-hop IPv6 extended header, which allows remote attackers to cause a denial of service (NULL pointer dereference and kernel panic) via a crafted IPv6 packet.

Patch / fix

  • rhev-hypervisor RHEL 5 5.4-2.1.8.el5_4rhev2_1
  • rhev-hypervisor-pxe RHEL 5 5.4-2.1.8.el5_4rhev2_1
  • kernel RHEL 5 2.6.18-164.10.1.el5
  • kernel-PAE RHEL 5 2.6.18-164.10.1.el5
  • kernel-xen RHEL 5 2.6.18-164.10.1.el5
  • kernel-kdump RHEL 5 2.6.18-164.10.1.el5
  • kernel-debuginfo-common RHEL 5 2.6.18-164.10.1.el5
  • kernel RHEL 5.2 EUS 2.6.18-92.1.35.el5

red hat advisories RHSA-2010:0079RHSA-2010:0053RHSA-2010:0095RHSA-2010:0019

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-2007-4567 updated cvss 7.8

kernel: ipv6_hop_jumbo remote system crash

  • Red Hat Enterprise Linux (v. 5 server) kernel 2.6.18-164.10.1.el5, kernel-PAE 2.6.18-164.10.1.el5, kernel-xen 2.6.18-164.10.1.el5, kernel-kdump 2.6.18-164.10.1.el5, kernel-debuginfo-common 2.6.18-164.10.1.el5 Red Hat Enterprise Linux Desktop (v. 5 client) kernel 2.6.18-164.10.1.el5, kernel-PAE 2.6.18-164.10.1.el5, kernel-xen 2.6.18-164.10.1.el5, kernel-debuginfo-common 2.6.18-164.10.1.el5
    fixed: vendor fix RHSA-2010:0019
  • Red Hat Enterprise Linux EUS (v. 5.2 server) kernel 2.6.18-92.1.35.el5, kernel-PAE 2.6.18-92.1.35.el5, kernel-xen 2.6.18-92.1.35.el5, kernel-kdump 2.6.18-92.1.35.el5, kernel-debuginfo-common 2.6.18-92.1.35.el5
    fixed: vendor fix RHSA-2010:0079
  • Red Hat Enterprise Linux EUS (v. 5.3 server) kernel 2.6.18-128.12.1.el5, kernel-PAE 2.6.18-128.12.1.el5, kernel-xen 2.6.18-128.12.1.el5, kernel-kdump 2.6.18-128.12.1.el5, kernel-debuginfo-common 2.6.18-128.12.1.el5
    fixed: vendor fix RHSA-2010:0053
  • Red Hat Enterprise Virtualization Hypervisor 5 rhev-hypervisor 5.4-2.1.8.el5_4rhev2_1, rhev-hypervisor-pxe 5.4-2.1.8.el5_4rhev2_1
    fixed: vendor fix RHSA-2010:0095
  • Red Hat Enterprise Linux (v. 5 server) kernel-headers 2.6.18-164.10.1.el5 Red Hat Enterprise Linux Desktop (v. 5 client) kernel-headers 2.6.18-164.10.1.el5 Red Hat Enterprise Linux EUS (v. 5.2 server) kernel-headers 2.6.18-92.1.35.el5 Red Hat Enterprise Linux EUS (v. 5.3 server) kernel-headers 2.6.18-128.12.1.el5
    not affected: vulnerable code not present

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-30902)
  2. Published

Exploit prediction

14.34% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-30902 Linux Kernel 2.6.22 - IPv6 Hop-By-Hop Header Remote Denial of Service dos, 2007-12-19

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

Weakness
  • CWE-20 Improper Input Validation
Technology feeds

References

Sources

Fencer Vulns 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.