Description
sctp in Linux kernel before 2.6.25.18 allows remote attackers to cause a denial of service (OOPS) via an INIT-ACK that states the peer does not support AUTH, which causes the sctp_process_init function to clean up active transports and triggers the OOPS when the T1-Init timer expires.
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 4.0 | fai-kernels | 1.17+etch.23etch1 | DSA-1687-1 |
| Debian 4.0 | linux-2.6 | 2.6.18.dfsg.1-23etch1 | DSA-1687-1 |
| Debian 4.0 | linux-2.6.24 | 2.6.24-6~etchnhalf.7 | DSA-1681-1 |
| Debian 4.0 | user-mode-linux | 2.6.18-1um-2etch.23etch1 | DSA-1687-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | kernel +12 | 2.6.18-92.1.22.el5 | RHSA-2008:1017 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat MRG 1 | kernel-rt +9 | 2.6.24.7-93.el5rt | RHSA-2009:0009 |
Advisories 4
- RHSA-2008:1017 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-1687-1 fai-kernels linux-2.6 user-mode-linux - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-1681-1 linux-2.6.24 - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- RHSA-2009:0009 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Nov 22, 2025
References
- 32998 third-party-advisory
- SUSE-SA:2008:052 vendor-advisory
- [oss-security] 20081008 CVE request: kernel: sctp: Fix oops when INIT-ACK indicates that peer doesn't support AUTH mailing-list
- RHSA-2009:0009 vendor-advisory
- SUSE-SA:2008:053 vendor-advisory
- FEDORA-2008-8929 vendor-advisory
- 31634 vdb-entry
- 33586 third-party-advisory
- DSA-1687 vendor-advisory
- oval:org.mitre.oval:def:9822 vdb-entry signature
- 32918 third-party-advisory
- USN-679-1 vendor-advisory
- linux-kernel-sctp-initack-dos(45773) vdb-entry
- 32759 third-party-advisory
- 33180 third-party-advisory
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25.18
- [linux-kernel] 20081006 [patch 58/71] sctp: Fix oops when INIT-ACK indicates that peer doesnt support AUTH mailing-list
- 32370 third-party-advisory
- RHSA-2008:1017 vendor-advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.27-rc6-git6.log
- 32386 third-party-advisory
- FEDORA-2008-8980 vendor-advisory
- SUSE-SR:2008:025 vendor-advisory
- DSA-1681 vendor-advisory
- 33182 third-party-advisory