CVE-2007-4567

Linux Kernel < 2.6.22 - Denial of Service via IPv6 Hop-by-Hop Extended Header

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2007-4567. PoCs published by Clemens Kurtenbach.

AI-analyzed exploit summary This exploit targets a Linux kernel vulnerability (CVE-2007-4567) by sending a malformed IPv6 packet with a crafted 'Hop-By-Hop' header to trigger a kernel panic, resulting in a denial-of-service (DoS). The PoC constructs a raw Ethernet frame with a malicious IPv6 payload and sends it to a specified target.

Description

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.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Clemens Kurtenbach · cdoslinux
https://www.exploit-db.com/exploits/30902

This exploit targets a Linux kernel vulnerability (CVE-2007-4567) by sending a malformed IPv6 packet with a crafted 'Hop-By-Hop' header to trigger a kernel panic, resulting in a denial-of-service (DoS). The PoC constructs a raw Ethernet frame with a malicious IPv6 payload and sends it to a specified target.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Moderate
Reliability
Reliable
Target: Linux kernel versions >=2.6.20 and <=2.6.21.1
No auth needed
Prerequisites: Network access to the target · Target must have IPv6 enabled · Raw socket permissions
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (16)

Core 16
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/39171
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7474
Issue Tracking x_refsource_confirm
http://bugzilla.kernel.org/show_bug.cgi?id=8450
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/28706
Issue Tracking x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=548641
Vendor Advisory vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2010-0053.html
Vendor Advisory vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2010-0019.html
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/26943
Vendor Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/558-1/
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/25505
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/usn-574-1
Vendor Advisory vendor-advisory x_refsource_redhat
https://rhn.redhat.com/errata/RHSA-2010-0095.html
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11083
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/28170
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/38015

Scores

EPSS 0.1434
EPSS Percentile 96.2%

Details

CWE
CWE-20
Status published
Products (23)
linux/linux_kernel 2.2.27
linux/linux_kernel 2.4.36
linux/linux_kernel 2.4.36.1
linux/linux_kernel 2.4.36.2
linux/linux_kernel 2.4.36.3
linux/linux_kernel 2.4.36.4
linux/linux_kernel 2.4.36.5
linux/linux_kernel 2.4.36.6
linux/linux_kernel 2.6
linux/linux_kernel 2.6.18 (8 CPE variants)
... and 13 more
Published Dec 21, 2007
Tracked Since Feb 18, 2026