Description
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."
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.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 4 | kernel +8 | 2.6.9-42.EL | RHSA-2006:0575 |
Advisories 1
- RHSA-2006:0575 Red Hat Security Advisory: Updated kernel packages available for Red Hat Enterprise Linux 4 Update 4 Red Hat Security Advisories (RHSA) · Jun 26, 2026
References
- linux-sctp-receive-dos(26433) vdb-entry
- 17955 vdb-entry
- 20716 third-party-advisory
- oval:org.mitre.oval:def:11295 vdb-entry signature
- USN-302-1 vendor-advisory
- RHSA-2006:0575 vendor-advisory
- http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7c3ceb4fb9667f34f1599a062efecf4cdc4a4ce5
- 2006-0026 vendor-advisory
- 21465 third-party-advisory
- http://support.avaya.com/elmodocs2/security/ASA-2006-200.htm
- 22417 third-party-advisory