Description
The tipc_nl_publ_dump function in net/tipc/socket.c in the Linux kernel through 4.6 does not verify socket existence, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a dumpit operation.
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 | 4.5.5-1 | — |
| Debian 13 | linux | 4.5.5-1 | — |
| Debian 12 | linux | 4.5.5-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | linux | 4.4.0-28.47 | USN-3016-1 |
| Ubuntu 16.04 LTS | linux-raspi2 | 4.4.0-1016.22 | USN-3016-2 |
| Ubuntu 16.04 LTS | linux-snapdragon | 4.4.0-1019.22 | USN-3016-3 |
| Ubuntu 14.04 LTS | linux-lts-vivid | 3.19.0-64.72~14.04.1 | USN-3020-1 |
| Ubuntu 14.04 LTS | linux-lts-wily | 4.2.0-41.48~14.04.1 | USN-3017-3 |
| Ubuntu 14.04 LTS | linux-lts-xenial | 4.4.0-28.47~14.04.1 | USN-3016-4 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | kernel-source | 4.8.13-1.1 | openSUSE-SU-2024:10128-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | dtrace-modules-4.1.12-61.1.6.el6uek | 0.5.3-2.el6 | ELSA-2016-3596 |
| Oracle Linux 7 | dtrace-modules-4.1.12-61.1.6.el7uek | 0.5.3-2.el7 | ELSA-2016-3596 |
| Oracle Linux 7 | kernel-uek +5 | 4.1.12-61.1.6.el7uek | ELSA-2016-3596 |
Advisories 9
- USN-3016-1 linux vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-3016-2 linux-raspi2 vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- USN-3016-3 linux-snapdragon vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- USN-3016-4 linux-lts-xenial vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- USN-3017-3 linux-lts-wily vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- USN-3020-1 linux-lts-vivid vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- openSUSE-SU-2024:10128-1 kernel-debug-4.8.13-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2024-0146 Linux Kernel: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Jan 17, 2024
- ELSA-2016-3596 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Aug 26, 2016
References
- [oss-security] 20160521 Re: CVE request: -- Linux kernel: Null pointer dereference in tipc_nl_publ_dump mailing-list
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
- USN-3017-1 vendor-advisory
- USN-3017-3 vendor-advisory
- USN-3017-2 vendor-advisory
- openSUSE-SU-2016:1641 vendor-advisory
- USN-3016-2 vendor-advisory
- USN-3016-1 vendor-advisory
- https://github.com/torvalds/linux/commit/45e093ae2830cd1264677d47ff9a95a71f5d9f9c
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=45e093ae2830cd1264677d47ff9a95a71f5d9f9c
- http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
- USN-3016-3 vendor-advisory
- USN-3016-4 vendor-advisory
- [netdev] 20160514 BUG: net/tipc: NULL-ptr dereference in tipc_nl_publ_dump mailing-list
- USN-3020-1 vendor-advisory