Linux kernel IPv6 hop-by-hop header denial of service
| linux-kernel-ipv6-dos (39171) |  Low Risk |
Description:
The Linux kernel is vulnerable to a denial of service. By sending a specially-crafted IPv6 packet containing a malformed hop-by-hop header, a remote attacker could cause a kernel panic.
*CVSS:
| Base Score: | 7.8 |
| Access Vector: | Network |
| Access Complexity: | Low |
| Authentication: | None |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | Complete |
| Temporal Score: | 5.8 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Denial of Service
Remedy:
Upgrade to the latest version of the Linux kernel (2.6.22-rc1 or later), available from The Linux Kernel Archives Web site. See References.
For other distributions:
Apply the appropriate update for your system. See References.
References:
- The Linux Kernel Archives Web site: ChangeLog-2.6.22-rc1.
- BID-26943: Linux Kernel IPv6 Hop-By-Hop Header Remote Denial of Service Vulnerability
- CVE-2007-4567: 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.
- RHSA-2010-0019: Important: kernel security update
- RHSA-2010-0053: Important: kernel security and bug fix update
- RHSA-2010-0079: Important: kernel security and bug fix update
- SA25505: Linux Kernel VFAT IOCTLs Denial of Service
- USN-558-1: Linux kernel vulnerabilities
- USN-574-1: Linux kernel vulnerabilities
Platforms Affected:
- Canonical Ubuntu 6.10
- Canonical Ubuntu 7.04
- Canonical Ubuntu 7.10
- Linux Kernel 2.6.20
- Linux Kernel 2.6.20.1
- Linux Kernel 2.6.20.10
- Linux Kernel 2.6.20.11
- Linux Kernel 2.6.20.12
- Linux Kernel 2.6.20.13
- Linux Kernel 2.6.20.14
- Linux Kernel 2.6.20.15
- Linux Kernel 2.6.20.2
- Linux Kernel 2.6.20.3
- Linux Kernel 2.6.20.4
- Linux Kernel 2.6.20.5
- Linux Kernel 2.6.20.6
- Linux Kernel 2.6.20.7
- Linux Kernel 2.6.20.8
- Linux Kernel 2.6.20.9
- Linux Kernel 2.6.21
- Linux Kernel 2.6.21.1
- Linux Kernel 2.6.21.2
- Linux Kernel 2.6.21.3
- Linux Kernel 2.6.21.4
- Linux Kernel 2.6.21.6
- Linux Kernel 2.6.21.7
- Linux Kernel 2.6.22
- RedHat Enterprise Linux 5
- RedHat Enterprise Linux 5 Client
- RedHat Enterprise Linux 5.2.z EUS
- RedHat Enterprise Linux 5.3.z EUS
Reported:
Dec 19, 2007
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For corrections or additions please email xforce@iss.net
* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.