Vulnerability · Published May 1, 2024 · Assigned by Linux
CVE-2024-26950wireguard: netlink: access device through ctx instead of peer
High 7.8
In plain English
A high-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 84.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
In the Linux kernel, the following vulnerability has been resolved: wireguard: netlink: access device through ctx instead of peer The previous commit fixed a bug that led to a NULL peer->device being dereferenced. It's actually easier and faster performance-wise to instead get the device from ctx->wg. This semantically makes more sense too, since ctx->wg->peer_allowedips.seq is compared with ctx->allowedips_seq, basing them both in ctx. This also acts as a defence in depth provision against freed peers.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 6.1.85-1 | DEBIAN-CVE-2024-26950 |
| Debian:13 | linux | 6.7.12-1 | DEBIAN-CVE-2024-26950 |
| Debian:14 | linux | 6.7.12-1 | DEBIAN-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux | 5.15.0-116.126 | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux | 5.15.0-116.126 | USN-6898-1 |
| Ubuntu:24.04:LTS | linux | 6.8.0-35.35 | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1065.71 | USN-6898-3 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1065.71 | UBUNTU-CVE-2024-26950 |
| Ubuntu:24.04:LTS | linux-aws | 6.8.0-1009.9 | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-aws-5.19 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-aws-6.5 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1068.77 | USN-6917-1 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1068.77 | UBUNTU-CVE-2024-26950 |
| Ubuntu:24.04:LTS | linux-azure | 6.8.0-1008.8 | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-azure-6.2 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-azure-6.5 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1068.77.1 | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1068.77.1 | USN-6917-1 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1064.72 | USN-6898-1 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1064.72 | UBUNTU-CVE-2024-26950 |
| Ubuntu:24.04:LTS | linux-gcp | 6.8.0-1008.9 | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-gcp-5.19 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-gcp-6.5 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1062.68 | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1062.68 | USN-6898-1 |
| Ubuntu:24.04:LTS | linux-gke | 6.8.0-1004.7 | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1048.55 | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1048.55 | USN-6898-1 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-hwe-6.5 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1058.61 | USN-6898-1 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1058.61 | UBUNTU-CVE-2024-26950 |
| Ubuntu:24.04:LTS | linux-ibm | 6.8.0-1006.6 | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1060.66 | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1060.66 | USN-6898-1 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1062.67 | USN-6898-1 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1062.67 | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-116.126 | USN-6898-2 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-116.126 | UBUNTU-CVE-2024-26950 |
| Ubuntu:24.04:LTS | linux-lowlatency | 6.8.0-35.35.1 | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.5 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1060.61 | USN-6898-1 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1060.61 | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-nvidia-6.5 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra | 5.15.0-1026.26 | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra-igx | 5.15.0-1015.15 | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-oem-6.5 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:24.04:LTS | linux-oem-6.8 | 6.8.0-1006.6 | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1063.69 | USN-6898-1 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1063.69 | UBUNTU-CVE-2024-26950 |
| Ubuntu:24.04:LTS | linux-oracle | 6.8.0-1006.6 | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-oracle-6.5 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1058.61 | UBUNTU-CVE-2024-26950 |
| Ubuntu:24.04:LTS | linux-raspi | 6.8.0-1005.5 | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:24.04:LTS | linux-riscv | 6.8.0-35.35.1 | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-riscv-5.19 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-riscv-6.5 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-starfive-5.19 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-starfive-6.2 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-starfive-6.5 | no fix listed | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-xilinx-zynqmp | 5.15.0-1035.39 | UBUNTU-CVE-2024-26950 |
| Ubuntu:22.04:LTS | linux-xilinx-zynqmp | 5.15.0-1035.39 | USN-7019-1 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | e7096c131e5161fa3b8e52a650d7719d2857adfd – before 493aa6bdcffd90a4f82aa614fe4f4db0641b4068e7096c131e5161fa3b8e52a650d7719d2857adfd – before 4be453271a882c8ebc28df3dbf9e4d95e6ac42f5e7096c131e5161fa3b8e52a650d7719d2857adfd – before 09c3fa70f65175861ca948cb2f0f791e666c90e5e7096c131e5161fa3b8e52a650d7719d2857adfd – before c991567e6c638079304cc15dff28748e4a3c4a37e7096c131e5161fa3b8e52a650d7719d2857adfd – before 93bcc1752c69bb309f4d8cfaf960ef1faeb34996e7096c131e5161fa3b8e52a650d7719d2857adfd – before d44bd323d8bb8031eef4bdc44547925998a11e47e7096c131e5161fa3b8e52a650d7719d2857adfd – before 71cbd32e3db82ea4a74e3ef9aeeaa6971969c86f |
| Linux | Linux | 5.6 |
References
- https://git.kernel.org/stable/c/493aa6bdcffd90a4f82aa614fe4f4db0641b4068
- https://git.kernel.org/stable/c/4be453271a882c8ebc28df3dbf9e4d95e6ac42f5
- https://git.kernel.org/stable/c/09c3fa70f65175861ca948cb2f0f791e666c90e5
- https://git.kernel.org/stable/c/c991567e6c638079304cc15dff28748e4a3c4a37
- https://git.kernel.org/stable/c/93bcc1752c69bb309f4d8cfaf960ef1faeb34996
- https://git.kernel.org/stable/c/d44bd323d8bb8031eef4bdc44547925998a11e47
- https://git.kernel.org/stable/c/71cbd32e3db82ea4a74e3ef9aeeaa6971969c86f
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html x_transferred
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html