Linux kernel ipip6_rcv function denial of service
| linux-kernel-ipip6rcv-dos (42451) |  Low Risk |
Description:
The Linux kernel is vulnerable to a denial of service, caused by a memory leak in the ipip6_rcv function. By sending a specially-crafted packet to the IPv6 over IPv4 (SIT) tunnel device, a remote attacker could cause the utilization of all memory resources.
Platforms Affected:
- Canonical, Ubuntu 6.06 LTS
- Canonical, Ubuntu 7.04
- Canonical, Ubuntu 7.10
- Canonical, Ubuntu 8.04 LTS
- Debian, Debian Linux 4.0
- Linux, Kernel 2.6.25
- Linux, Kernel 2.6.25.1
- Linux, Kernel 2.6.25.2
- MandrakeSoft, Mandrake Linux 2008.1
- MandrakeSoft, Mandrake Linux 2008.1 X86_64
- MandrakeSoft, Mandrake Linux Corporate Server 4.0 X86_64
- MandrakeSoft, Mandrake Linux Corporate Server 4.0
- Novell, OpenSUSE 10.2
- Novell, OpenSUSE 10.3
- Novell, SLE SDK 10 SP1
- Novell, SUSE Linux Enterprise 10 SP1 DEBUGINFO
- Novell, SUSE Linux Enterprise Desktop 10 SP1
- Novell, SUSE Linux Enterprise Server 10 SP1
- RedHat, Enterprise Linux 4 WS
- RedHat, Enterprise Linux 4 ES
- RedHat, Enterprise Linux 4 Desktop
- RedHat, Enterprise Linux 4 AS
- RedHat, Enterprise Linux 5
- RedHat, Enterprise Linux 5 Client
- RedHat, Linux Advanced Workstation 2.1 Itanium
Remedy:
Upgrade to the latest version of the Linux kernel (2.6.25.3 or later), available from The Linux Kernel Archives Web site. See References.
Consequences:
Denial of Service
References:
- linux-netdev Mailing List, 2008-05-09 4:49:27, When should kfree_skb be used? at http://marc.info/?l=linux-netdev&m=121030861218192&w=2.
- The Linux Kernel Archives Web site, The Linux Kernel Archives at http://www.kernel.org/.
- ASA-2008-362: kernel security and bug fix update (RHSA-2008-0607)
- BID-29235: Linux Kernel 'ipip6_rcv()' Remote Denial of Service Vulnerability
- CVE-2008-2136: Memory leak in the ipip6_rcv function in net/ipv6/sit.c in the Linux kernel before 2.6.25.3 allows remote attackers to cause a denial of service (memory consumption) via network traffic to a Simple Internet Transition (SIT) tunnel interface, related to the pskb_may_pull and kfree_skb functions, and management of an skb reference count.
- DSA-1588: linux-2.6 -- denial of service
- FrSIRT/ADV-2008-1543: Linux Kernel Denial of Service and Security Bypass Vulnerabilities
- MDVSA-2008:167: kernel
- MDVSA-2008:174: kernel
- RHSA-2008-0585: Important: kernel security and bug fix update
- RHSA-2008-0607: Important: kernel security and bug fix update
- RHSA-2008-0612: Important: kernel security and bug fix update
- SA30241: Linux Kernel Multiple Vulnerabilities
- SA31689: Avaya Products Linux Kernel Local Denial of Service
- SECTRACK ID: 1020118: Linux Kernel Memory Leak in SIT Code ipip6_rcv() Lets Remote Users Deny Service
- SUSE-SA:2008:030: Linux kernel security update
- SUSE-SA:2008:032: SUSE Linux Enterprise 10 SP1 Linux kernel
- USN-625-1: Linux kernel vulnerabilities
Reported:
May 09, 2008
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