Description
The tipc_msg_build function in net/tipc/msg.c in the Linux kernel through 4.8.11 does not validate the relationship between the minimum fragment length and the maximum packet size, which allows local users to gain privileges or cause a denial of service (heap-based buffer overflow) by leveraging the CAP_NET_ADMIN capability.
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 | 4.8.15-1 | — |
| Debian 13 | linux | 4.8.15-1 | — |
| Debian 12 | linux | 4.8.15-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +3 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp +4 | No fix yet | — |
| Ubuntu 16.04 LTS | linux | 4.4.0-79.100 | USN-3312-1 |
| Ubuntu 16.04 LTS | linux-aws | 4.4.0-1018.27 | USN-3312-1 |
| Ubuntu 16.04 LTS | linux-gke | 4.4.0-1014.14 | USN-3312-1 |
| Ubuntu 16.04 LTS | linux-raspi2 | 4.4.0-1057.64 | USN-3312-1 |
| Ubuntu 16.04 LTS | linux-snapdragon | 4.4.0-1059.63 | USN-3312-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | linux | 3.13.0-135.184 | USN-3470-1 |
| Ubuntu 14.04 LTS | linux-lts-xenial | 4.4.0-79.100~14.04.1 | USN-3312-2 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP2 | kernel-docs | 4.4.21-84.3 | SUSE-SU-2016:3049-1 |
| SLES 12 SP2 | kernel-syms +3 | 4.4.21-84.1 | SUSE-SU-2016:3049-1 |
| SLES 12 SP1 | kernel-docs | 3.12.67-60.64.21.3 | SUSE-SU-2016:3039-1 |
| SLES 12 SP1 | kernel-xen +4 | 3.12.67-60.64.21.1 | SUSE-SU-2016:3039-1 |
| SLES 12 | kernel-ec2 +4 | 3.12.60-52.60.1 | SUSE-SU-2016:3063-1, SUSE-SU-2016:3039-1 |
| SLES 12 | kgraft-patch-SLE12_Update_10 | 8-2.1 | SUSE-SU-2017:0247-1 |
| SLES 12 | kgraft-patch-SLE12_Update_11 | 7-2.1 | SUSE-SU-2017:0268-1 |
| SLES 12 | kgraft-patch-SLE12_Update_12 +3 | 5-2.1 | SUSE-SU-2017:0249-1, SUSE-SU-2017:0248-1, SUSE-SU-2017:0246-1 |
| SLES 12 | kgraft-patch-SLE12_Update_16 | 3-2.1 | SUSE-SU-2017:0245-1 |
| SLES 12 | kgraft-patch-SLE12_Update_17 | 1-2.1 | SUSE-SU-2016:3063-1 |
| SLES 11 SP4 | kernel-docs | 3.0.101-94.2 | SUSE-SU-2017:0437-1 |
| SLES 11 SP4 | kernel-ec2 +8 | 3.0.101-94.1 | SUSE-SU-2017:0437-1 |
| SLES 11 SP3 | kernel-ec2 +7 | 3.0.101-0.47.96.1 | SUSE-SU-2017:0494-1 |
Show 12 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP2 | kernel-ec2 +6 | 3.0.101-0.7.53.1 | SUSE-SU-2017:0333-1 |
| SLES for SAP 12 SP2 | kernel-syms +2 | 4.4.21-84.1 | SUSE-SU-2016:3049-1 |
| SLES for SAP 12 SP1 | kernel-xen +3 | 3.12.67-60.64.21.1 | SUSE-SU-2016:3039-1 |
| SLES for SAP 12 | kernel-xen +3 | 3.12.60-52.60.1 | SUSE-SU-2016:3063-1 |
| SLES for SAP 12 | kgraft-patch-SLE12_Update_10 | 8-2.1 | SUSE-SU-2017:0247-1 |
| SLES for SAP 12 | kgraft-patch-SLE12_Update_11 | 7-2.1 | SUSE-SU-2017:0268-1 |
| SLES for SAP 12 | kgraft-patch-SLE12_Update_12 +3 | 5-2.1 | SUSE-SU-2017:0249-1, SUSE-SU-2017:0248-1, SUSE-SU-2017:0246-1 |
| SLES for SAP 12 | kgraft-patch-SLE12_Update_16 | 3-2.1 | SUSE-SU-2017:0245-1 |
| SLES for SAP 12 | kgraft-patch-SLE12_Update_17 | 1-2.1 | SUSE-SU-2016:3063-1 |
| SLES for SAP 11 SP4 | kernel-ec2 +8 | 3.0.101-94.1 | SUSE-SU-2017:0437-1 |
| SLE Real Time 12 SP1 | kernel-rt +5 | 3.12.69-60.30.1 | SUSE-SU-2017:0407-1 |
| SLE Real Time 11 SP4 | kernel-rt +3 | 3.0.101.rt130-68.1 | SUSE-SU-2017:1102-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP1_Update_2 | 8-2.1 | SUSE-SU-2017:0231-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP1_Update_3 | 7-2.1 | SUSE-SU-2017:0233-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP1_Update_4 +2 | 6-2.1 | SUSE-SU-2017:0235-1, SUSE-SU-2017:0234-1, SUSE-SU-2017:0230-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP1_Update_7 | 5-2.1 | SUSE-SU-2017:0226-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP1_Update_8 | 4-2.1 | SUSE-SU-2017:0278-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP1_Update_9 +1 | 3-2.1 | SUSE-SU-2017:0229-1, SUSE-SU-2017:0228-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP2_Update_0 | 3-8.2 | SUSE-SU-2017:0227-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP2_Update_2 +1 | 1-2.1 | SUSE-SU-2016:3049-1, SUSE-SU-2016:3039-1 |
| SUSE OpenStack Cloud 5 | kernel-ec2 +6 | 3.0.101-0.47.96.1 | SUSE-SU-2017:0494-1 |
| SUSE Manager Proxy 2.1 | kernel-ec2 +6 | 3.0.101-0.47.96.1 | SUSE-SU-2017:0494-1 |
| SUSE Manager 2.1 | kernel-ec2 +6 | 3.0.101-0.47.96.1 | SUSE-SU-2017:0494-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | kernel-ec2 +6 | 3.0.101-0.47.96.1 | SUSE-SU-2017:0494-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | dtrace-modules-4.1.12-61.1.33.el6uek | 0.5.3-2.el6 | ELSA-2017-3533 |
| Oracle Linux 7 | dtrace-modules-4.1.12-61.1.33.el7uek | 0.5.3-2.el7 | ELSA-2017-3533 |
| Oracle Linux 7 | kernel-uek +5 | 4.1.12-61.1.33.el7uek | ELSA-2017-3533 |
Advisories 29
- USN-3470-1 linux vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-3312-1 linux, linux-aws, linux-gke, linux-raspi2, linux-snapdragon vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-3312-2 linux-lts-xenial vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2017:0234-1 Security update for Linux Kernel Live Patch 4 for SLE 12 SP1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0233-1 Security update for Linux Kernel Live Patch 3 for SLE 12 SP1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:1102-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0228-1 Security update for Linux Kernel Live Patch 1 for SLE 12 SP2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0494-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0229-1 Security update for Linux Kernel Live Patch 9 for SLE 12 SP1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0268-1 Security update for Linux Kernel Live Patch 11 for SLE 12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0244-1 Security update for Linux Kernel Live Patch 12 for SLE 12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0227-1 Security update for Linux Kernel Live Patch 0 for SLE 12 SP2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0248-1 Security update for Linux Kernel Live Patch 14 for SLE 12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0231-1 Security update for Linux Kernel Live Patch 2 for SLE 12 SP1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0407-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0333-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0235-1 Security update for Linux Kernel Live Patch 5 for SLE 12 SP1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0226-1 Security update for Linux Kernel Live Patch 7 for SLE 12 SP1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0247-1 Security update for Linux Kernel Live Patch 10 for SLE 12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0245-1 Security update for Linux Kernel Live Patch 16 for SLE 12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:3063-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:3039-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0278-1 Security update for Linux Kernel Live Patch 8 for SLE 12 SP1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:3049-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0246-1 Security update for Linux Kernel Live Patch 15 for SLE 12 SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2017:0249-1 Security update for Linux Kernel Live Patch 13 for SLE 12 SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2017:0230-1 Security update for Linux Kernel Live Patch 6 for SLE 12 SP1 SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2017:0437-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2017-3533 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Mar 31, 2017