Description
The sctp_init function in net/sctp/protocol.c in the Linux kernel before 4.2.3 has an incorrect sequence of protocol-initialization steps, which allows local users to cause a denial of service (panic or memory corruption) by creating SCTP sockets before all of the steps have finished.
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 | 4.2.1-2 | — |
| Debian 13 | linux | 4.2.1-2 | — |
| Debian 12 | linux | 4.2.1-2 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | linux | 3.13.0-70.113 | USN-2823-1 |
| Ubuntu 14.04 LTS | linux-lts-utopic | 3.16.0-52.71~14.04.1 | USN-2797-1 |
| Ubuntu 14.04 LTS | linux-lts-vivid | 3.19.0-37.42~14.04.1 | USN-2829-2 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | kernel-rt +7 | 3.10.0-327.rt56.204.el7 | RHSA-2015:2411 |
| RHEL 7 | perf +18 | 3.10.0-327.el7 | RHSA-2015:2152 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 | kernel-ec2 +4 | 3.12.48-52.27.1 | SUSE-SU-2015:2194-1, SUSE-SU-2015:1727-1 |
| SLES 12 | kernel-xen +1 | 3.12.48-52.27.2 | SUSE-SU-2015:2194-1, SUSE-SU-2015:1727-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 | kernel-syms +2 | 3.12.48-52.27.1 | SUSE-SU-2015:2194-1, SUSE-SU-2015:1727-1 |
| SLES for SAP 12 | kernel-xen | 3.12.48-52.27.2 | SUSE-SU-2015:2194-1, SUSE-SU-2015:1727-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12_Update_8 | 1-2.6 | SUSE-SU-2015:1727-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12_Update_9 | 1-2.2 | SUSE-SU-2015:2194-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | dtrace-modules-3.8.13-118.2.1.el6uek | 0.4.5-3.el6 | ELSA-2015-3101 |
| Oracle Linux 7 | dtrace-modules-3.8.13-118.2.1.el7uek | 0.4.5-3.el7 | ELSA-2015-3101 |
| Oracle Linux 7 | kernel-uek +5 | 3.8.13-118.2.1.el7uek | ELSA-2015-3101 |
| Oracle Linux 7 | perf +11 | 3.10.0-327.el7 | ELSA-2015-2152 |
Advisories 9
- RHSA-2015:2411 Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2015:2152 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- USN-2823-1 linux vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-2797-1 linux-lts-utopic vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- USN-2829-2 linux-lts-vivid vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2015:2194-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:1727-1 Security update for kernel-source SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2015-3101 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 27, 2015
- ELSA-2015-2152 Important: kernel security, bug fix, and enhancement update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 24, 2015
References
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.2.3
- DSA-3372 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1257528
- USN-2826-1 vendor-advisory
- 77058 vdb-entry
- SUSE-SU-2015:1727 vendor-advisory
- https://github.com/torvalds/linux/commit/8e2d61e0aed2b7c4ecb35844fe07e0b2b762dee4
- SUSE-SU-2015:2194 vendor-advisory
- https://security-tracker.debian.org/tracker/CVE-2015-5283
- USN-2829-2 vendor-advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8e2d61e0aed2b7c4ecb35844fe07e0b2b762dee4
- USN-2829-1 vendor-advisory
- USN-2823-1 vendor-advisory
- 1033808 vdb-entry
- http://patchwork.ozlabs.org/patch/515996/