Description
An integer overflow in the uvesafb_setcmap function in drivers/video/fbdev/uvesafb.c in the Linux kernel before 4.17.4 could result in local attackers being able to crash the kernel or potentially elevate privileges because kmalloc_array is not used.
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 | 4.17.6-1 | — |
| Debian 13 | linux | 4.17.6-1 | — |
| Debian 12 | linux | 4.17.6-1 | — |
| Debian 8 | linux | 3.16.59-1 | DLA-1529-1 |
| Debian 8 | linux-4.9 | 4.9.144-3.1~deb8u1 | DLA-1715-1 |
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 | 4.15.0-33.36 | USN-3752-1 |
| Ubuntu 18.04 LTS | linux-aws +1 | 4.15.0-1020.20 | USN-3752-1 |
| Ubuntu 18.04 LTS | linux-azure | 4.15.0-1022.23 | USN-3752-3 |
| Ubuntu 18.04 LTS | linux-gcp | 4.15.0-1018.19 | USN-3752-1 |
| Ubuntu 18.04 LTS | linux-oem | 4.15.0-1017.20 | USN-3752-3 |
| Ubuntu 18.04 LTS | linux-raspi2 | 4.15.0-1021.23 | USN-3752-1 |
| Ubuntu 16.04 LTS | linux | 4.4.0-134.160 | USN-3753-1 |
| Ubuntu 16.04 LTS | linux-aws | 4.4.0-1066.76 | USN-3753-1 |
| Ubuntu 16.04 LTS | linux-azure | 4.15.0-1022.22~16.04.1 | USN-3752-3 |
| Ubuntu 16.04 LTS | linux-gcp | 4.15.0-1018.19~16.04.2 | USN-3752-3 |
| Ubuntu 16.04 LTS | linux-hwe | 4.15.0-33.36~16.04.1 | USN-3752-2 |
| Ubuntu 16.04 LTS | linux-kvm | 4.4.0-1032.38 | USN-3753-1 |
| Ubuntu 16.04 LTS | linux-raspi2 | 4.4.0-1095.103 | USN-3753-1 |
| Ubuntu 16.04 LTS | linux-snapdragon | 4.4.0-1099.104 | USN-3753-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | linux | 3.13.0-157.207 | USN-3754-1 |
| Ubuntu 14.04 LTS | linux-aws | 4.4.0-1028.31 | USN-3753-2 |
| Ubuntu 14.04 LTS | linux-lts-xenial | 4.4.0-134.160~14.04.1 | USN-3753-2 |
| Ubuntu Pro FIPS-updates 16.04 LTS | linux-fips | 4.4.0-1008.10 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 | kernel-azure +2 | 4.12.14-5.8.1 | SUSE-SU-2018:2222-1 |
| SLES 15 | kernel-docs +6 | 4.12.14-25.3.1 | SUSE-SU-2018:2092-1 |
| SLES 12 SP3 | kernel-docs +4 | 4.4.140-94.42.1 | SUSE-SU-2018:2051-1 |
| SLES 12 SP2 | kernel-syms +2 | 4.4.121-92.92.1 | SUSE-SU-2018:2344-2, SUSE-SU-2018:2344-1 |
| SLES 12 SP2 | kgraft-patch-SLE12-SP2_Update_24 | 1-3.7.1 | SUSE-SU-2018:2344-2, SUSE-SU-2018:2344-1 |
| SLES 12 SP2 | lttng-modules | 2.7.1-9.4.1 | SUSE-SU-2018:2344-2, SUSE-SU-2018:2344-1 |
| SLES 12 SP1 | kernel-xen +3 | 3.12.74-60.64.99.1 | SUSE-SU-2018:2384-1 |
| SLES 12 SP1 | kgraft-patch-SLE12-SP1_Update_30 | 1-2.3.1 | SUSE-SU-2018:2384-1 |
| SLES 12 SP1 | lttng-modules | 2.7.0-4.2.1 | SUSE-SU-2018:2384-1 |
| SLES 12 | kernel-ec2 +4 | 3.12.61-52.141.1 | SUSE-SU-2018:2384-1, SUSE-SU-2018:2362-1 |
| SLES 12 | kgraft-patch-SLE12_Update_37 | 1-1.5.1 | SUSE-SU-2018:2362-1 |
| SLES 12 | lttng-modules | 2.4.1-16.6.1 | SUSE-SU-2018:2362-1 |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP4 | kernel-ec2 +9 | 3.0.101-108.68.1 | SUSE-SU-2018:2332-1 |
| SLES 11 SP3 | kernel-ec2 +7 | 3.0.101-0.47.106.43.1 | SUSE-SU-2018:2366-1 |
| SLES for SAP 12 SP3 | kernel-syms +2 | 4.4.140-94.42.1 | SUSE-SU-2018:2051-1 |
| SLES for SAP 12 SP2 | kernel-syms +2 | 4.4.121-92.92.1 | SUSE-SU-2018:2344-1 |
| SLES for SAP 12 SP2 | kgraft-patch-SLE12-SP2_Update_24 | 1-3.7.1 | SUSE-SU-2018:2344-1 |
| SLES for SAP 12 SP2 | lttng-modules | 2.7.1-9.4.1 | SUSE-SU-2018:2344-1 |
| SLES for SAP 12 SP1 | kernel-xen +3 | 3.12.74-60.64.99.1 | SUSE-SU-2018:2384-1 |
| SLES for SAP 12 SP1 | kgraft-patch-SLE12-SP1_Update_30 | 1-2.3.1 | SUSE-SU-2018:2384-1 |
| SLES for SAP 12 SP1 | lttng-modules | 2.7.0-4.2.1 | SUSE-SU-2018:2384-1 |
| SLES for SAP 11 SP4 | kernel-ec2 +8 | 3.0.101-108.68.1 | SUSE-SU-2018:2332-1 |
| SLE Real Time 12 SP3 | kernel-rt +3 | 4.4.139-3.17.1 | SUSE-SU-2018:2150-1 |
| SLE Real Time 11 SP4 | kernel-rt +3 | 3.0.101.rt130-69.33.1 | SUSE-SU-2018:2637-1 |
| SLE Live Patching 15 | kernel-default | 4.12.14-25.3.1 | SUSE-SU-2018:2092-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_1 | 1-1.3.1 | SUSE-SU-2018:2092-1 |
| SLE Live Patching 12 SP3 | kgraft-patch-SLE12-SP3_Update_15 | 1-4.3.1 | SUSE-SU-2018:2051-1 |
| SUSE OpenStack Cloud 7 | kernel-syms +2 | 4.4.121-92.92.1 | SUSE-SU-2018:2344-1 |
| SUSE OpenStack Cloud 7 | kgraft-patch-SLE12-SP2_Update_24 | 1-3.7.1 | SUSE-SU-2018:2344-1 |
| SUSE OpenStack Cloud 7 | lttng-modules | 2.7.1-9.4.1 | SUSE-SU-2018:2344-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | kernel-ec2 +6 | 3.0.101-0.47.106.43.1 | SUSE-SU-2018:2366-1 |
| SUSE Enterprise Storage 4 | kernel-syms +2 | 4.4.121-92.92.1 | SUSE-SU-2018:2344-1 |
| SUSE Enterprise Storage 4 | kgraft-patch-SLE12-SP2_Update_24 | 1-3.7.1 | SUSE-SU-2018:2344-1 |
| SUSE Enterprise Storage 4 | lttng-modules | 2.7.1-9.4.1 | SUSE-SU-2018:2344-1 |
Advisories 20
- USN-3754-1 linux vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- USN-3752-1 linux, linux-aws, linux-gcp, linux-kvm, linux-raspi2 vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- USN-3752-3 linux-azure, linux-oem, linux-gcp vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- USN-3752-2 linux-hwe vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- USN-3753-1 linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-1529-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1715-1 linux-4.9 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-3753-2 linux-lts-xenial, linux-aws vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2018:2092-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2344-2 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2366-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2362-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2222-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2051-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2332-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2384-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2344-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2150-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2637-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2022-0959 Linux Kernel: Mehrere Schwachstellen ermöglichen Privilegieneskalation und Denial of Service BSI CERT-Bund (WID) · Mar 8, 2023
References
- USN-3752-2 vendor-advisory
- USN-3752-3 vendor-advisory
- USN-3753-2 vendor-advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.17.4
- USN-3754-1 vendor-advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9f645bcc566a1e9f921bdae7528a01ced5bc3713
- https://github.com/torvalds/linux/commit/9f645bcc566a1e9f921bdae7528a01ced5bc3713
- 1041355 vdb-entry
- USN-3752-1 vendor-advisory
- USN-3753-1 vendor-advisory
- 104685 vdb-entry
- [debian-lts-announce] 20190315 [SECURITY] [DLA 1715-1] linux-4.9 security update mailing-list