Vulnerability · Published Feb 25, 2023 · Assigned by mitre
CVE-2023-26545
Medium 4.7
In plain English
A medium-severity double free in the bpftool package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.7Medium
Exploit odds (30 days)0.3%top 74.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
In the Linux kernel before 6.1.13, there is a double free in net/mpls/af_mpls.c upon an allocation failure (for registering the sysctl table under a new location) during the renaming of a device.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | bpftool | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-abi-stablelists | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-core | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-cross-headers | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-debug | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-debug-core | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-debug-devel | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-debug-modules | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-debug-modules-extra | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-devel | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-doc | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-headers | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-modules | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-modules-extra | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-tools | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-tools-libs | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-tools-libs-devel | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-zfcpdump | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-zfcpdump-core | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-zfcpdump-devel | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-zfcpdump-modules | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-zfcpdump-modules-extra | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | perf | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | python3-perf | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| Debian:12 | linux | 6.1.15-1 | DEBIAN-CVE-2023-26545 |
| Debian:13 | linux | 6.1.15-1 | DEBIAN-CVE-2023-26545 |
| Debian:14 | linux | 6.1.15-1 | DEBIAN-CVE-2023-26545 |
| Ubuntu:22.04:LTS | linux | 5.15.0-70.77 | USN-6025-1 |
| Ubuntu:22.04:LTS | linux | 5.15.0-70.77 | UBUNTU-CVE-2023-26545 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1034.38 | UBUNTU-CVE-2023-26545 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1034.38 | USN-6025-1 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1036.43 | UBUNTU-CVE-2023-26545 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1036.43 | USN-6025-1 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | 5.19.0-1023.24~22.04.1 | UBUNTU-CVE-2023-26545 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1036.43.1 | USN-6025-1 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1036.43.1 | UBUNTU-CVE-2023-26545 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1032.40 | UBUNTU-CVE-2023-26545 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1032.40 | USN-6025-1 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1031.36 | UBUNTU-CVE-2023-26545 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1031.36 | USN-6025-1 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1018.23 | USN-6025-1 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1018.23 | UBUNTU-CVE-2023-26545 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | 5.19.0-40.41~22.04.1 | USN-6024-1 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | 5.19.0-40.41~22.04.1 | UBUNTU-CVE-2023-26545 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1028.31 | UBUNTU-CVE-2023-26545 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1028.31 | USN-6025-1 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1028.33 | UBUNTU-CVE-2023-26545 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1028.33 | USN-6057-1 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1031.36 | USN-6025-1 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1031.36 | UBUNTU-CVE-2023-26545 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-70.77 | USN-6025-1 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-70.77 | UBUNTU-CVE-2023-26545 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 | 5.19.0-1022.23~22.04.1 | UBUNTU-CVE-2023-26545 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1023.23 | UBUNTU-CVE-2023-26545 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | 5.17.0-1031.32 | USN-6071-1 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | 5.17.0-1031.32 | UBUNTU-CVE-2023-26545 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | 6.0.0-1015.15 | USN-6072-1 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | 6.0.0-1015.15 | UBUNTU-CVE-2023-26545 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | 6.1.0-1008.8 | USN-5978-1 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | 6.1.0-1008.8 | UBUNTU-CVE-2023-26545 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1033.39 | UBUNTU-CVE-2023-26545 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1033.39 | USN-6025-1 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1027.29 | UBUNTU-CVE-2023-26545 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1027.29 | USN-6025-1 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2023-26545 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2023-26545 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2023-26545 |
Affected products (as reported)
Weakness: CWE-415 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
References
- https://github.com/torvalds/linux/commit/fda6c89fe3d9aca073495a664e1d5aea28cd4377
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fda6c89fe3d9aca073495a664e1d5aea28cd4377
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.13
- https://security.netapp.com/advisory/ntap-20230316-0009/
- [debian-lts-announce] 20230502 [SECURITY] [DLA 3404-1] linux-5.10 security update mailing-list
- [debian-lts-announce] 20230503 [SECURITY] [DLA 3403-1] linux security update mailing-list