Linux SCTP sctp_skb_pull() infinite recursion denial of service
| linux-sctp-skb-pull-dos (26432) |  Low Risk |
Description:
Linux kernel SCTP (lksctp) could allow a remote attacker to cause a denial of service, caused by an infinite recursion error in the sctp_skb_pull() function. A remote attacker could exploit this vulnerability using a specially-crafted packet to cause the system to crash.
Platforms Affected:
- Canonical, Ubuntu 5.04
- Canonical, Ubuntu 5.10
- Canonical, Ubuntu 6.06 LTS
- Debian, Debian Linux 3.1
- lksctp, lksctp 2.6.0_Test1_0.7.2
- lksctp, lksctp 2.6.0_Test4_0.7.3
- lksctp, lksctp 2.6.10_1.0.2
- lksctp, lksctp 2.6.13_1.0.3
- lksctp, lksctp 2.6.14_1.0.4
- lksctp, lksctp 2.6.15_1.0.5
- lksctp, lksctp 2.6.16_1.0.6
- lksctp, lksctp 2.6.2_0.9.0
- lksctp, lksctp 2.6.3_1.0.0
- lksctp, lksctp 2.6.6_1.0.1
- MandrakeSoft, Mandrake Linux 2006
- MandrakeSoft, Mandrake Linux 2006 X86_64
- MandrakeSoft, Mandrake Linux Corporate Server 3.0
- MandrakeSoft, Mandrake Linux Corporate Server 3.0 X86_64
- MandrakeSoft, Mandrake Multi Network Firewall 2.0
- Novell, UnitedLinux 1.0
- RedHat, Enterprise Linux 4 Desktop
- RedHat, Enterprise Linux 4 ES
- RedHat, Enterprise Linux 4 WS
- RedHat, Enterprise Linux 4 AS
- SuSE, SuSE Linux 10.0
- SuSE, SuSE Linux 9.1
- SuSE, SuSE Linux 9.2
- SuSE, SuSE Linux 9.3
- SuSE, SuSE Linux Enterprise Server 8.0
- SuSE, SuSE Linux Enterprise Server 9.0
- SuSE, SuSE SLES 9
Remedy:
Upgrade to the latest stable version of the Linux kernel (2.6.16.16 or later), available from The Linux Kernel Archives. See References.
For Red Hat Linux:
Refer to RHSA-2006:0493-6 for patch, upgrade, or suggested workaround information. See References.
For Debian GNU/Linux:
Refer to DSA-1097-1 and DSA-1103-1 for patch, upgrade, or suggested workaround information. See References.
For SUSE Linux:
Refer to SUSE-SA:2006:028 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Apply the appropriate update for your system. See References.
Consequences:
Denial of Service
References:
- IBM Systems Support Web site, Support for HMC at https://www14.software.ibm.com/webapp/set2/sas/f/hmc/power5/install/v61.Readme.html#MH01110.
- The Linux Kernel Archives, [SCTP]: Prevent possible infinite recursion with multiple bundled DATA. at http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=672e7cca17ed6036a1756ed34cf20dbd72d5e5f6.
- The Linux Kernel Archives, The Linux Kernel Archives at http://www.kernel.org/.
- ASA-2006-161: kernel security update (RHSA-2006-0493)
- BID-17955: Linux Kernel 2.6.16.13 Multiple SCTP Remote Denial of Service Vulnerabilities
- CVE-2006-2274: Linux SCTP (lksctp) before 2.6.17 allows remote attackers to cause a denial of service (infinite recursion and crash) via a packet that contains two or more DATA fragments, which causes an skb pointer to refer back to itself when the full message is reassembled, leading to infinite recursion in the sctp_skb_pull function.
- DSA-1097: kernel-source-2.4.27 -- several vulnerabilities
- DSA-1103: kernel-source-2.6.8 -- several vulnerabilities
- MDKSA-2006:123: Updated kernel packages fixes multiple vulnerabilities
- MDKSA-2006:150: Updated kernel packages fix multiple vulnerabilities
- OSVDB ID: 25746: Linux Kernel SCTP sctp_skb_pull Malformed Packet Remote DoS
- RHSA-2006-0493: kernel security update
- SA21476: Linux Kernel Multiple Vulnerabilities
- SA21745: Avaya Products Linux Kernel Multiple Vulnerabilities
- SUSE-SA:2006:028: various kernel security problems
- USN-302-1: Linux kernel vulnerabilities
Reported:
May 06, 2006
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