Description
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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 3.1 | kernel-source-2.4.27 | 2.4.27-10sarge3 | DSA-1097-1 |
| Debian 3.1 | kernel-source-2.6.8 | 2.6.8-16sarge3 | DSA-1103 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 4 | kernel +8 | 2.6.9-34.0.1.EL | RHSA-2006:0493 |
Advisories 3
- RHSA-2006:0493 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-1097-1 kernel-source-2.4.27 - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-1103 kernel-source-2.6.8 - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
References
- http://support.avaya.com/elmodocs2/security/ASA-2006-161.htm
- RHSA-2006:0493 vendor-advisory
- linux-sctp-ecne-chunk-dos(26430) vdb-entry
- http://labs.musecurity.com/advisories/MU-200605-01.txt
- 19990 third-party-advisory
- ADV-2006-2554 vdb-entry
- 20716 third-party-advisory
- 25632 vdb-entry
- 21476 third-party-advisory
- 21745 third-party-advisory
- oval:org.mitre.oval:def:10934 vdb-entry signature
- USN-302-1 vendor-advisory
- 17910 vdb-entry
- DSA-1097 vendor-advisory
- SUSE-SA:2006:028 vendor-advisory
- 20060508 [MU-200605-01] Multiple vulnerabilities in Linux SCTP 2.6.16 mailing-list
- 2006-0026 vendor-advisory
- DSA-1103 vendor-advisory
- http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=35d63edb1c807bc5317e49592260e84637bc432e
- ADV-2006-1734 vdb-entry
- 20237 third-party-advisory
- 20398 third-party-advisory
- MDKSA-2006:086 vendor-advisory
- 20671 third-party-advisory
- 20157 third-party-advisory
- 20914 third-party-advisory