Linux kernel netfilter xt_sctp denial of service
| linux-xt-sctp-dos (27384) |  Low Risk |
Description:
Linux kernel is vulnerable to a denial of service attack, caused by an infinite loop condition that can occur in the netfilter/xt_sctp.c file. A remote attacker could exploit this vulnerability using specially-crafted packets containing a SCTP (Stream Control Transmission Protocol) chunk size of zero to consume all available CPU resources, resulting in a denial of service.
Platforms Affected:
- Linux, Kernel 2.6.0 test9-cvs
- 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 test4
- 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
- Linux, Kernel 2.6.1 rc2
- Linux, Kernel 2.6.1 rc1
- Linux, Kernel 2.6.1
- Linux, Kernel 2.6.10 rc3
- Linux, Kernel 2.6.10 rc2
- Linux, Kernel 2.6.10
- Linux, Kernel 2.6.10 rc1
- Linux, Kernel 2.6.11 rc3
- Linux, Kernel 2.6.11 rc4
- Linux, Kernel 2.6.11 rc2
- Linux, Kernel 2.6.11 rc5
- Linux, Kernel 2.6.11 rc1
- Linux, Kernel 2.6.11
- Linux, Kernel 2.6.11.11
- Linux, Kernel 2.6.11.12
- 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 2.6.12 rc4
- Linux, Kernel 2.6.12 rc3
- Linux, Kernel 2.6.12 rc5
- Linux, Kernel 2.6.12 rc6
- Linux, Kernel 2.6.12 rc2
- Linux, Kernel 2.6.12 rc1
- Linux, Kernel 2.6.12.1
- Linux, Kernel 2.6.12.2
- 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 rc5
- Linux, Kernel 2.6.13 rc6
- Linux, Kernel 2.6.13 rc7
- Linux, Kernel 2.6.13 rc4
- Linux, Kernel 2.6.13
- Linux, Kernel 2.6.13 rc1
- Linux, Kernel 2.6.13 rc2
- Linux, Kernel 2.6.13 rc3
- 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 2.6.14 rc4
- Linux, Kernel 2.6.14 rc5
- Linux, Kernel 2.6.14 rc3
- Linux, Kernel 2.6.14 rc2
- Linux, Kernel 2.6.14
- Linux, Kernel 2.6.14 rc1
- 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 2.6.15
- Linux, Kernel 2.6.15 rc1
- Linux, Kernel 2.6.15 rc7
- Linux, Kernel 2.6.15 rc6
- Linux, Kernel 2.6.15 rc2
- Linux, Kernel 2.6.15 rc5
- Linux, Kernel 2.6.15 rc3
- Linux, Kernel 2.6.15 rc4
- Linux, Kernel 2.6.15.1
- 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 2.6.16 rc6
- Linux, Kernel 2.6.16 rc5
- Linux, Kernel 2.6.16 rc4
- Linux, Kernel 2.6.16 rc3
- Linux, Kernel 2.6.16 rc2
- Linux, Kernel 2.6.16 rc1
- 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 2.6.16.13
- Linux, Kernel 2.6.16.14
- Linux, Kernel 2.6.16.15
- Linux, Kernel 2.6.16.16
- Linux, Kernel 2.6.16.17
- Linux, Kernel 2.6.16.18
- Linux, Kernel 2.6.16.19
- Linux, Kernel 2.6.16.2
- Linux, Kernel 2.6.16.20
- Linux, Kernel 2.6.16.21
- Linux, Kernel 2.6.16.22
- 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 2.6.17 rc3
- Linux, Kernel 2.6.17 rc4
- Linux, Kernel 2.6.17 rc5
- Linux, Kernel 2.6.17 rc6
- Linux, Kernel 2.6.17 rc1
- Linux, Kernel 2.6.17
- Linux, Kernel 2.6.17 rc2
- Linux, Kernel 2.6.2
- Linux, Kernel 2.6.2 rc1
- Linux, Kernel 2.6.2 rc3
- Linux, Kernel 2.6.2 rc2
- Linux, Kernel 2.6.3 rc3
- Linux, Kernel 2.6.3 rc1
- Linux, Kernel 2.6.3
- Linux, Kernel 2.6.3 rc2
- Linux, Kernel 2.6.4 rc2
- Linux, Kernel 2.6.4 rc1
- Linux, Kernel 2.6.4 rc3
- Linux, Kernel 2.6.4
- Linux, Kernel 2.6.5 rc2
- Linux, Kernel 2.6.5 rc1
- Linux, Kernel 2.6.5
- Linux, Kernel 2.6.5 rc3
- Linux, Kernel 2.6.6 rc1
- Linux, Kernel 2.6.6
- Linux, Kernel 2.6.6 rc2
- Linux, Kernel 2.6.6 rc3
- Linux, Kernel 2.6.7 rc2
- Linux, Kernel 2.6.7 rc1
- Linux, Kernel 2.6.7 rc3
- Linux, Kernel 2.6.7
- Linux, Kernel 2.6.8 rc4
- Linux, Kernel 2.6.8
- Linux, Kernel 2.6.8 rc1
- Linux, Kernel 2.6.8 rc2
- Linux, Kernel 2.6.8 rc3
- Linux, Kernel 2.6.9
- Linux, Kernel 2.6.9 rc2
- Linux, Kernel 2.6.9 rc1
- Linux, Kernel 2.6.9 rc3
- Linux, Kernel 2.6.9 rc4
- MandrakeSoft, Mandrake Linux 2006 X86_64
- MandrakeSoft, Mandrake Linux 2006
- Novell, Linux Desktop 9
- Novell, Open Enterprise Server
- Novell, Open Enterprise Server
- SuSE, Linux Enterprise Server 8
- SuSE, SuSE Linux 10.1
- SuSE, SuSE Linux 9.1
- SuSE, SuSE SLES 9
Remedy:
Upgrade to the latest version of Linux kernel (2.6.17.1 or later), available from The Linux Kernel Archives Web site. See References.
For SUSE Linux:
Refer to SUSE-SA:2006:047 for patch, upgrade, or suggested workaround information. See References.
Consequences:
Denial of Service
References:
- The Linux Kernel Archives, ChangeLog-2.6.17.1 at http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.17.1.
- The Linux Kernel Archives, ChangeLog-2.6.17.1 at http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.17.1.
- The Linux Kernel Archives Web site, The Linux Kernel Archives at http://www.kernel.org.
- BID-18550: Linux Kernel XT_SCTP-netfilter Remote Denial of Service Vulnerability
- CVE-2006-3085: xt_sctp in netfilter for Linux kernel before 2.6.17.1 allows attackers to cause a denial of service (infinite loop) via an SCTP chunk with a 0 length.
- MDKSA-2006:123: Updated kernel packages fixes multiple vulnerabilities
- OSVDB ID: 26680: Linux Kernel Netfilter xt_sctp 0 Chunk Length Infinite Loop DoS
- SA20703: Linux Kernel Information Disclosure and Denial of Service
- SECTRACK ID: 1016347: Linux Kernel xt_sctp Endless Loop Lets Remote Users Deny Service
- SUSE-SA:2006:042: kernel local privilege escalation
- SUSE-SA:2006:047: kernel security problems
- VUPEN/ADV-2006-2451: Linux Kernel Security Update Fixes Multiple Denial of Service Vulnerabilities
Reported:
Jun 20, 2006
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