Linux SCTP ECNE CLOSED state chunk denial of service
| linux-sctp-ecne-chunk-dos (26430) |  Medium Risk |
Description:
Linux kernel SCTP (lksctp) could allow a remote attacker to cause a denial of service, caused by improper handling of ECNE chunks that are received in the CLOSED state. A remote attacker could exploit this vulnerability to cause a kernel panic.
*CVSS:
| Base Score: | 5 |
| Access Vector: | Remote |
| Access Complexity: | Low |
| Authentication: | Not Required |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | Complete |
| Temporal Score: | 3.7 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Denial of Service
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.
References:
- Full-Disclosure Mailing List, Mon May 08 2006 - 15:41:27 CDT: [MU-200605-01] Multiple vulnerabilities in Linux SCTP 2.6.16.
- IBM Systems Support Web site: Support for HMC.
- The Linux Kernel Archives: The Linux Kernel Archives.
- The Linux Kernel Archives: [SCTP]: Fix state table entries for chunks received in CLOSED state..
- ASA-2006-161: kernel security update (RHSA-2006-0493)
- BID-17910: Linux Kernel Multiple SCTP Remote Denial of Service Vulnerabilities
- CVE-2006-2271: The ECNE chunk handling in Linux SCTP (lksctp) before 2.6.17 allows remote attackers to cause a denial of service (kernel panic) via an unexpected chunk when the session is in CLOSED state.
- DSA-1097: kernel-source-2.4.27 -- several vulnerabilities
- DSA-1103: kernel-source-2.6.8 -- several vulnerabilities
- MDKSA-2006:086: Updated kernel packages fix multiple vulnerabilities
- OSVDB ID: 25632: Linux Kernel SCTP ECNE Chunk Handling Remote DoS
- RHSA-2006-0493: kernel security update
- SA19990: Linux Kernel SCTP Denial of Service Vulnerabilities
- 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
- VUPEN/ADV-2006-1734: Linux Kernel SCTP Chunks Handling Remote Denial of Service Vulnerabilities
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 X86_64
- MandrakeSoft Mandrake Linux 2006
- Novell UnitedLinux 1.0
- RedHat Enterprise Linux 4 WS
- RedHat Enterprise Linux 4 AS
- RedHat Enterprise Linux 4 Desktop
- 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
Reported:
May 08, 2006
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.