Linux kernel SCTP-netfilter for_each_sctp_chunk() denial of service
| linux-sctp-netfilter-dos (26194) |  Low Risk |
Description:
Linux kernel is vulnerable to a denial of service attack, caused by an infinite loop condition that can occur in the SCTP-netfilter module for_each_sctp_chunk() function. A remote attacker could exploit this vulnerability using specially-crafted packets containing an invalid SCTP (Stream Control Transmission Protocol) chunk size to consume all available CPU resources, resulting in a denial of service.
Platforms Affected:
- Canonical, Ubuntu 5.04
- Canonical, Ubuntu 5.10
- Canonical, Ubuntu 6.06 LTS
- Linux, Kernel 2.6.0 test9
- Linux, Kernel 2.6.0 test8
- Linux, Kernel 2.6.0 test7
- Linux, Kernel 2.6.0 test6
- Linux, Kernel 2.6.0 test5
- Linux, Kernel 2.6.0
- Linux, Kernel 2.6.0 test3
- Linux, Kernel 2.6.0 test2
- Linux, Kernel 2.6.0 test11
- Linux, Kernel 2.6.0 test10
- Linux, Kernel 2.6.0 test1
- Linux, Kernel 2.6.0 test4
- Linux, Kernel 2.6.1 rc3
- Linux, Kernel 2.6.1
- Linux, Kernel 2.6.1 rc1
- Linux, Kernel 2.6.1 rc2
- Linux, Kernel 2.6.10
- Linux, Kernel 2.6.10 rc1
- Linux, Kernel 2.6.10 rc2
- Linux, Kernel 2.6.10 rc3
- Linux, Kernel 2.6.11 rc2
- Linux, Kernel 2.6.11
- Linux, Kernel 2.6.11 rc1
- Linux, Kernel 2.6.11 rc3
- Linux, Kernel 2.6.11 rc5
- Linux, Kernel 2.6.11 rc4
- Linux, Kernel 2.6.11.1
- Linux, Kernel 2.6.11.10
- Linux, Kernel 2.6.11.11
- Linux, Kernel 2.6.11.12
- Linux, Kernel 2.6.11.2
- Linux, Kernel 2.6.11.3
- Linux, Kernel 2.6.11.4
- Linux, Kernel 2.6.11.5
- Linux, Kernel 2.6.11.6
- Linux, Kernel 2.6.11.7
- Linux, Kernel 2.6.11.8
- Linux, Kernel 2.6.11.9
- Linux, Kernel 2.6.12 rc6
- Linux, Kernel 2.6.12 rc5
- Linux, Kernel 2.6.12
- Linux, Kernel 2.6.12 rc1
- Linux, Kernel 2.6.12 rc2
- Linux, Kernel 2.6.12 rc3
- Linux, Kernel 2.6.12 rc4
- Linux, Kernel 2.6.12.1
- Linux, Kernel 2.6.12.12
- Linux, Kernel 2.6.12.2
- Linux, Kernel 2.6.12.22
- Linux, Kernel 2.6.12.3
- Linux, Kernel 2.6.12.4
- Linux, Kernel 2.6.12.5
- Linux, Kernel 2.6.12.6
- Linux, Kernel 2.6.13 rc7
- Linux, Kernel 2.6.13 rc6
- Linux, Kernel 2.6.13 rc5
- Linux, Kernel 2.6.13 rc4
- Linux, Kernel 2.6.13 rc3
- Linux, Kernel 2.6.13 rc2
- Linux, Kernel 2.6.13 rc1
- Linux, Kernel 2.6.13
- Linux, Kernel 2.6.13.1
- Linux, Kernel 2.6.13.2
- Linux, Kernel 2.6.13.3
- Linux, Kernel 2.6.13.4
- Linux, Kernel 2.6.13.5
- Linux, Kernel 2.6.14 rc4
- Linux, Kernel 2.6.14 rc5
- Linux, Kernel 2.6.14 rc2
- Linux, Kernel 2.6.14
- Linux, Kernel 2.6.14 rc1
- Linux, Kernel 2.6.14 rc3
- Linux, Kernel 2.6.14.1
- Linux, Kernel 2.6.14.2
- Linux, Kernel 2.6.14.3
- Linux, Kernel 2.6.14.4
- Linux, Kernel 2.6.14.5
- Linux, Kernel 2.6.14.6
- Linux, Kernel 2.6.14.7
- Linux, Kernel 2.6.15 rc4
- Linux, Kernel 2.6.15 rc5
- Linux, Kernel 2.6.15 rc6
- Linux, Kernel 2.6.15 rc7
- Linux, Kernel 2.6.15 rc1
- Linux, Kernel 2.6.15
- Linux, Kernel 2.6.15 rc2
- Linux, Kernel 2.6.15 rc3
- Linux, Kernel 2.6.15.1
- Linux, Kernel 2.6.15.11
- Linux, Kernel 2.6.15.2
- Linux, Kernel 2.6.15.3
- Linux, Kernel 2.6.15.4
- Linux, Kernel 2.6.15.5
- Linux, Kernel 2.6.15.6
- Linux, Kernel 2.6.15.7
- Linux, Kernel 2.6.16 rc3
- Linux, Kernel 2.6.16 rc4
- Linux, Kernel 2.6.16 rc5
- Linux, Kernel 2.6.16 rc6
- Linux, Kernel 2.6.16
- Linux, Kernel 2.6.16 rc7
- Linux, Kernel 2.6.16.1
- Linux, Kernel 2.6.16.10
- Linux, Kernel 2.6.16.11
- Linux, Kernel 2.6.16.12
- Linux, Kernel 2.6.16.2
- Linux, Kernel 2.6.16.3
- Linux, Kernel 2.6.16.4
- Linux, Kernel 2.6.16.5
- Linux, Kernel 2.6.16.6
- Linux, Kernel 2.6.16.7
- Linux, Kernel 2.6.16.8
- Linux, Kernel 2.6.16.9
- Linux, Kernel 2.6.2 rc3
- Linux, Kernel 2.6.2 rc2
- Linux, Kernel 2.6.2 rc1
- Linux, Kernel 2.6.2
- Linux, Kernel 2.6.3 rc3
- Linux, Kernel 2.6.3 rc2
- Linux, Kernel 2.6.3
- Linux, Kernel 2.6.3 rc1
- Linux, Kernel 2.6.3 rc4
- Linux, Kernel 2.6.4 rc3
- Linux, Kernel 2.6.4 rc2
- Linux, Kernel 2.6.4 rc1
- Linux, Kernel 2.6.4
- Linux, Kernel 2.6.5 rc2
- Linux, Kernel 2.6.5 rc3
- Linux, Kernel 2.6.5 rc1
- Linux, Kernel 2.6.5
- Linux, Kernel 2.6.6
- Linux, Kernel 2.6.6 rc1
- Linux, Kernel 2.6.6 rc2
- Linux, Kernel 2.6.6 rc3
- Linux, Kernel 2.6.7
- Linux, Kernel 2.6.7 rc3
- Linux, Kernel 2.6.7 rc1
- Linux, Kernel 2.6.7 rc2
- Linux, Kernel 2.6.8
- Linux, Kernel 2.6.8 rc2
- Linux, Kernel 2.6.8 rc1
- Linux, Kernel 2.6.8 rc3
- Linux, Kernel 2.6.8 rc4
- Linux, Kernel 2.6.8.1
- Linux, Kernel 2.6.9 rc3
- Linux, Kernel 2.6.9 rc2
- Linux, Kernel 2.6.9
- Linux, Kernel 2.6.9 rc1
- Linux, Kernel 2.6.9 rc4
- MandrakeSoft, Mandrake Linux 2006 X86_64
- MandrakeSoft, Mandrake Linux 2006
- Novell, UnitedLinux 1.0
- RedHat, Enterprise Linux 4 Desktop
- RedHat, Enterprise Linux 4 WS
- RedHat, Enterprise Linux 4 AS
- RedHat, Enterprise Linux 4 ES
- SuSE, Linux Enterprise Server 8
- SuSE, Linux Enterprise Server 9
- SuSE, SuSE Linux 10.0
- SuSE, SuSE Linux 9.1
- SuSE, SuSE Linux 9.2
- SuSE, SuSE Linux 9.3
- SuSE, SuSE SLES 9
Remedy:
Upgrade to the latest version of Linux kernel (2.6.16.13 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 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, ChangeLog-2.6.16.13 at http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.16.13.
- The Linux Kernel Archives Web site, The Linux Kernel Archives at http://www.kernel.org/.
- ASA-2006-161: kernel security update (RHSA-2006-0493)
- BID-17806: Linux Kernel SCTP-netfilter Remote Denial of Service Vulnerability
- CVE-2006-1527: The SCTP-netfilter code in Linux kernel before 2.6.16.13 allows remote attackers to trigger a denial of service (infinite loop) via unknown vectors that cause an invalid SCTP chunk size to be processed by the for_each_sctp_chunk function.
- MDKSA-2006:086: Updated kernel packages fix multiple vulnerabilities
- OSVDB ID: 25229: Linux Kernel SCTP Netfilter Crafted Chunk Size DoS
- RHSA-2006-0493: kernel security update
- SA19926: Linux Kernel Security Bypass and Denial of Service
- SA21745: Avaya Products Linux Kernel Multiple Vulnerabilities
- SUSE-SA:2006:028: various kernel security problems
- USN-302-1: Linux kernel vulnerabilities
- VUPEN/ADV-2006-1632: Linux Kernel for_each_sctp_chunk() Function Denial of Service Vulnerability
Reported:
May 02, 2006
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