Description
In /drivers/isdn/i4l/isdn_net.c: A user-controlled buffer is copied into a local buffer of constant size using strcpy without a length check which can cause a buffer overflow. This affects the Linux kernel 4.9-stable tree, 4.12-stable tree, 3.18-stable tree, and 4.4-stable tree.
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 | 4.13.4-1 | — |
| Debian 13 | linux | 4.13.4-1 | — |
| Debian 12 | linux | 4.13.4-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-gcp-6.11 +4 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +3 | No fix yet | — |
| Ubuntu 16.04 LTS | linux | 4.4.0-96.119 | USN-3420-1 |
| Ubuntu 16.04 LTS | linux-aws | 4.4.0-1035.44 | USN-3420-1 |
| Ubuntu 16.04 LTS | linux-azure | 4.13.0-1005.7 | — |
| Ubuntu 16.04 LTS | linux-gcp | 4.13.0-1002.5 | — |
| Ubuntu 16.04 LTS | linux-gke | 4.4.0-1031.31 | USN-3420-1 |
| Ubuntu 16.04 LTS | linux-hwe | 4.13.0-32.35~16.04.1 | — |
| Ubuntu 16.04 LTS | linux-kvm | 4.4.0-1007.12 | USN-3420-1 |
| Ubuntu 16.04 LTS | linux-raspi2 | 4.4.0-1074.82 | USN-3420-1 |
| Ubuntu 16.04 LTS | linux-snapdragon | 4.4.0-1076.81 | USN-3420-1 |
| Ubuntu 14.04 LTS | linux | 3.13.0-144.193 | USN-3620-1 |
| Ubuntu 14.04 LTS | linux-lts-xenial | 4.4.0-96.119~14.04.1 | USN-3420-2 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | linux-azure-fde-5.15 | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | kernel-xen +3 | 3.12.74-60.64.63.1 | SUSE-SU-2017:2908-1 |
| SLES 12 SP1 | kgraft-patch-SLE12-SP1_Update_22 | 1-2.1 | SUSE-SU-2017:2908-1 |
| SLES 12 | kernel-ec2 +4 | 3.12.61-52.101.1 | SUSE-SU-2017:2920-1, SUSE-SU-2017:2908-1 |
| SLES 12 | kgraft-patch-SLE12_Update_28 | 1-8.1 | SUSE-SU-2017:2920-1 |
| SLES 11 SP4 | kernel-docs | 3.0.101-108.18.3 | SUSE-SU-2017:3265-1 |
| SLES 11 SP4 | kernel-ec2 +8 | 3.0.101-108.18.1 | SUSE-SU-2017:3265-1 |
| SLES 11 SP3 | kernel-ec2 +7 | 3.0.101-0.47.106.5.1 | SUSE-SU-2017:2525-1 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP1 | kernel-xen +3 | 3.12.74-60.64.63.1 | SUSE-SU-2017:2908-1 |
| SLES for SAP 12 SP1 | kgraft-patch-SLE12-SP1_Update_22 | 1-2.1 | SUSE-SU-2017:2908-1 |
| SLES for SAP 11 SP4 | kernel-ec2 +8 | 3.0.101-108.18.1 | SUSE-SU-2017:3265-1 |
| SLE Real Time 11 SP4 | kernel-rt +3 | 3.0.101.rt130-69.8.1 | SUSE-SU-2017:2694-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP2_Update_0 | 10-18.13.1 | SUSE-SU-2017:2801-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP2_Update_1 | 10-4.1 | SUSE-SU-2017:2802-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP2_Update_11 +1 | 3-4.1 | SUSE-SU-2017:2816-1, SUSE-SU-2017:2806-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP2_Update_13 | 2-4.1 | SUSE-SU-2017:2813-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP2_Update_2 +2 | 9-4.1 | SUSE-SU-2017:2811-1, SUSE-SU-2017:2805-1, SUSE-SU-2017:2803-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP2_Update_5 | 7-4.1 | SUSE-SU-2017:2798-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP2_Update_6 | 6-4.1 | SUSE-SU-2017:2807-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP2_Update_7 +1 | 5-4.1 | SUSE-SU-2017:2809-1, SUSE-SU-2017:2799-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP2_Update_9 +1 | 4-4.1 | SUSE-SU-2017:2804-1, SUSE-SU-2017:2800-1 |
| SUSE OpenStack Cloud 6 | kernel-xen +3 | 3.12.74-60.64.63.1 | SUSE-SU-2017:2908-1 |
| SUSE OpenStack Cloud 6 | kgraft-patch-SLE12-SP1_Update_22 | 1-2.1 | SUSE-SU-2017:2908-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | kernel-ec2 +6 | 3.0.101-0.47.106.5.1 | SUSE-SU-2017:2525-1 |
Advisories 22
- USN-3620-1 linux vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-3420-1 linux, linux-aws, linux-gke, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-3420-2 linux-lts-xenial vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2017:2798-1 Security update for Linux Kernel Live Patch 5 for SLE 12 SP2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2806-1 Security update for Linux Kernel Live Patch 11 for SLE 12 SP2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2807-1 Security update for Linux Kernel Live Patch 6 for SLE 12 SP2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2525-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:3265-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2816-1 Security update for Linux Kernel Live Patch 12 for SLE 12 SP2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2813-1 Security update for Linux Kernel Live Patch 13 for SLE 12 SP2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2804-1 Security update for Linux Kernel Live Patch 9 for SLE 12 SP2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2811-1 Security update for Linux Kernel Live Patch 4 for SLE 12 SP2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2801-1 Security update for Linux Kernel Live Patch 0 for SLE 12 SP2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2803-1 Security update for Linux Kernel Live Patch 2 for SLE 12 SP2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2908-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2800-1 Security update for Linux Kernel Live Patch 10 for SLE 12 SP2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2920-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2802-1 Security update for Linux Kernel Live Patch 1 for SLE 12 SP2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2694-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2809-1 Security update for Linux Kernel Live Patch 7 for SLE 12 SP2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2805-1 Security update for Linux Kernel Live Patch 3 for SLE 12 SP2 SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2017:2799-1 Security update for Linux Kernel Live Patch 8 for SLE 12 SP2 SUSE / openSUSE Security Updates · May 2, 2025
References
- USN-3620-2 vendor-advisory
- https://patchwork.kernel.org/patch/9880041/
- 100251 vdb-entry
- USN-3620-1 vendor-advisory
- [oss-security] 20200211 Potential regression and/or incomplete fix for CVE-2017-12762 mailing-list
- [oss-security] 20200211 Re: Potential regression and/or incomplete fix for CVE-2017-12762 mailing-list
- [oss-security] 20200214 Re: Potential regression and/or incomplete fix for CVE-2017-12762 mailing-list