Linux SCTP receive buffer deadlock denial of service
| linux-sctp-receive-dos (26433) |  Low Risk |
Description:
Linux kernel SCTP (lksctp) could allow a remote attacker to cause a denial of service, caused by a deadlock error in the receive buffer. A remote attacker could exploit this vulnerability by sending a large number of small messages to cause a denial of service.
Platforms Affected:
- Canonical, Ubuntu 5.04
- Canonical, Ubuntu 5.10
- Canonical, Ubuntu 6.06 LTS
- 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
- RedHat, Enterprise Linux 4 WS
- RedHat, Enterprise Linux 4 ES
- RedHat, Enterprise Linux 4 Desktop
- RedHat, Enterprise Linux 4 AS
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 4:
Refer to RHSA-2006:0575-22 for patch, upgrade, or suggested workaround information. See References.
Consequences:
Denial of Service
References:
- The Linux Kernel Archives, [SCTP]: Allow spillover of receive buffer to avoid deadlock. at http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7c3ceb4fb9667f34f1599a062efecf4cdc4a4ce5.
- The The Linux Kernel Archives, The Linux Kernel Archives at http://www.kernel.org/.
- ASA-2006-200: Updated kernel packages available for Red Hat Enterprise Linux 4 Update 4 (RHSA-2006-0575)
- BID-17955: Linux Kernel 2.6.16.13 Multiple SCTP Remote Denial of Service Vulnerabilities
- CVE-2006-2275: Linux SCTP (lksctp) before 2.6.17 allows remote attackers to cause a denial of service (deadlock) via a large number of small messages to a receiver application that cannot process the messages quickly enough, which leads to spillover of the receive buffer.
- RHSA-2006-0575: Updated kernel packages available for Red Hat Enterprise Linux 4 Update 4
- SA22417: Avaya Products Linux Kernel Multiple Vulnerabilities
- USN-302-1: Linux kernel vulnerabilities
Reported:
May 06, 2006
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