Description
The sctp_association_free function in net/sctp/associola.c in the Linux kernel before 3.15.2 does not properly manage a certain backlog value, which allows remote attackers to cause a denial of service (socket outage) via a crafted SCTP packet.
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 14 | linux | 3.14.9-1 | — |
| Debian 13 | linux | 3.14.9-1 | — |
| Debian 12 | linux | 3.14.9-1 | — |
| Debian 7 | linux | 3.2.60-1+deb7u3 | DSA-2992-1 |
| Debian 6.0 | linux-2.6 | 2.6.32-48squeeze8 | DLA-0015-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | linux | 3.13.0-35.62 | USN-2337-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | perf +17 | 3.10.0-123.6.3.el7 | RHSA-2014:1023 |
| RHEL 6 | perf +16 | 2.6.32-431.29.2.el6 | RHSA-2014:1167 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat MRG 2 | kernel-rt +10 | 3.10.33-rt32.43.el6rt | RHSA-2014:0913 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | dtrace-modules-3.8.13-35.3.5.el6uek | 0.4.3-4.el6 | ELSA-2014-3067 |
| Oracle Linux 7 | dtrace-modules-3.8.13-35.3.5.el7uek | 0.4.3-4.el7 | ELSA-2014-3067 |
| Oracle Linux 7 | kernel-uek +5 | 3.8.13-35.3.5.el7uek | ELSA-2014-3067 |
| Oracle Linux 7 | perf +11 | 3.10.0-123.6.3.el7 | ELSA-2014-1023 |
Advisories 8
- RHSA-2014:1167 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2014:1023 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- USN-2337-1 linux vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-2992-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-0015-1 linux-2.6 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RHSA-2014:0913 Red Hat Security Advisory: kernel-rt security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- ELSA-2014-3067 Important: unbreakable enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Aug 11, 2014
- ELSA-2014-1023 Important: kernel security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Aug 6, 2014
References
- https://github.com/torvalds/linux/commit/d3217b15a19a4779c39b212358a5c71d725822ee
- SUSE-SU-2014:1316 vendor-advisory
- [oss-security] 20140627 Re: CVE request -- Linux kernel: sctp: sk_ack_backlog wrap-around problem mailing-list
- 59790 third-party-advisory
- USN-2335-1 vendor-advisory
- USN-2334-1 vendor-advisory
- SUSE-SU-2014:1319 vendor-advisory
- 60564 third-party-advisory
- 68224 vdb-entry
- 59777 third-party-advisory
- 60596 third-party-advisory
- http://linux.oracle.com/errata/ELSA-2014-3068.html
- http://linux.oracle.com/errata/ELSA-2014-3069.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1113967
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2
- DSA-2992 vendor-advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d3217b15a19a4779c39b212358a5c71d725822ee
- SUSE-SU-2015:0812 vendor-advisory