Vulnerability · Published Dec 19, 2023 · Assigned by Google
CVE-2023-6931Out-of-bounds write in Linux kernel's Performance Events system component
High 7.8
In plain English
A high-severity out-of-bounds write in Linux Kernel from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.7%top 46.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack tooling1Public PoC
Official description
A heap out-of-bounds write vulnerability in the Linux kernel's Performance Events system component can be exploited to achieve local privilege escalation. A perf_event's read_size can overflow, leading to an heap out-of-bounds increment or write in perf_read_group(). We recommend upgrading past commit 382c27f4ed28f803b1f1473ac2d8db0afc795a1b.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | bpftool | 4.18.0-513.24.1.el8_9 | ALSA-2024:1607 |
| AlmaLinux:9 | bpftool | 7.3.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:8 | kernel | 4.18.0-513.24.1.el8_9 | ALSA-2024:1607 |
| AlmaLinux:9 | kernel | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-64k | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-64k-core | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-64k-debug | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-64k-debug-core | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-64k-debug-devel | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-64k-debug-devel-matched | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-64k-debug-modules | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-64k-debug-modules-core | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-64k-debug-modules-extra | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-64k-devel | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-64k-devel-matched | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-64k-modules | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-64k-modules-core | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-64k-modules-extra | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:8 | kernel-abi-stablelists | 4.18.0-513.24.1.el8_9 | ALSA-2024:1607 |
| AlmaLinux:9 | kernel-abi-stablelists | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:8 | kernel-core | 4.18.0-513.24.1.el8_9 | ALSA-2024:1607 |
| AlmaLinux:9 | kernel-core | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:8 | kernel-cross-headers | 4.18.0-513.24.1.el8_9 | ALSA-2024:1607 |
| AlmaLinux:9 | kernel-cross-headers | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:8 | kernel-debug | 4.18.0-513.24.1.el8_9 | ALSA-2024:1607 |
| AlmaLinux:9 | kernel-debug | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:8 | kernel-debug-core | 4.18.0-513.24.1.el8_9 | ALSA-2024:1607 |
| AlmaLinux:9 | kernel-debug-core | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:8 | kernel-debug-devel | 4.18.0-513.24.1.el8_9 | ALSA-2024:1607 |
| AlmaLinux:9 | kernel-debug-devel | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-debug-devel-matched | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:8 | kernel-debug-modules | 4.18.0-513.24.1.el8_9 | ALSA-2024:1607 |
| AlmaLinux:9 | kernel-debug-modules | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-debug-modules-core | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:8 | kernel-debug-modules-extra | 4.18.0-513.24.1.el8_9 | ALSA-2024:1607 |
| AlmaLinux:9 | kernel-debug-modules-extra | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-debug-uki-virt | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:8 | kernel-devel | 4.18.0-513.24.1.el8_9 | ALSA-2024:1607 |
| AlmaLinux:9 | kernel-devel | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-devel-matched | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:8 | kernel-doc | 4.18.0-513.24.1.el8_9 | ALSA-2024:1607 |
| AlmaLinux:9 | kernel-doc | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-headers | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:8 | kernel-modules | 4.18.0-513.24.1.el8_9 | ALSA-2024:1607 |
| AlmaLinux:9 | kernel-modules | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-modules-core | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:8 | kernel-modules-extra | 4.18.0-513.24.1.el8_9 | ALSA-2024:1607 |
| AlmaLinux:9 | kernel-modules-extra | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-rt | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-rt-core | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-rt-debug | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-rt-debug-core | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-rt-debug-devel | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-rt-debug-modules | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-rt-debug-modules-core | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-rt-debug-modules-extra | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-rt-devel | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-rt-modules | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-rt-modules-core | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-rt-modules-extra | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:8 | kernel-tools | 4.18.0-513.24.1.el8_9 | ALSA-2024:1607 |
| AlmaLinux:9 | kernel-tools | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:8 | kernel-tools-libs | 4.18.0-513.24.1.el8_9 | ALSA-2024:1607 |
| AlmaLinux:9 | kernel-tools-libs | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:8 | kernel-tools-libs-devel | 4.18.0-513.24.1.el8_9 | ALSA-2024:1607 |
| AlmaLinux:9 | kernel-tools-libs-devel | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-uki-virt | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:8 | kernel-zfcpdump | 4.18.0-513.24.1.el8_9 | ALSA-2024:1607 |
| AlmaLinux:9 | kernel-zfcpdump | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:8 | kernel-zfcpdump-core | 4.18.0-513.24.1.el8_9 | ALSA-2024:1607 |
| AlmaLinux:9 | kernel-zfcpdump-core | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:8 | kernel-zfcpdump-devel | 4.18.0-513.24.1.el8_9 | ALSA-2024:1607 |
| AlmaLinux:9 | kernel-zfcpdump-devel | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-zfcpdump-devel-matched | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:8 | kernel-zfcpdump-modules | 4.18.0-513.24.1.el8_9 | ALSA-2024:1607 |
| AlmaLinux:9 | kernel-zfcpdump-modules | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | kernel-zfcpdump-modules-core | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:8 | kernel-zfcpdump-modules-extra | 4.18.0-513.24.1.el8_9 | ALSA-2024:1607 |
| AlmaLinux:9 | kernel-zfcpdump-modules-extra | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | libperf | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:8 | perf | 4.18.0-513.24.1.el8_9 | ALSA-2024:1607 |
| AlmaLinux:9 | perf | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:8 | python3-perf | 4.18.0-513.24.1.el8_9 | ALSA-2024:1607 |
| AlmaLinux:9 | python3-perf | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | rtla | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux:9 | rv | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| Debian:12 | linux | 6.1.69-1 | DEBIAN-CVE-2023-6931 |
| Debian:12 | linux | 6.1.69-1 | DSA-5593-1 |
| Debian:13 | linux | 6.6.8-1 | DEBIAN-CVE-2023-6931 |
| Debian:14 | linux | 6.6.8-1 | DEBIAN-CVE-2023-6931 |
| Rocky Linux:8 | kernel | 0:4.18.0-513.24.1.el8_9.cloud.0.1 | RXSA-2024:1607 |
| Rocky Linux:8 | kernel | 0:4.18.0-513.24.1.el8_9 | RLSA-2024:1607 |
| Rocky Linux:8 | kernel-rt | 0:4.18.0-513.24.1.rt7.326.el8_9 | RLSA-2024:1614 |
| Ubuntu:22.04:LTS | linux | 5.15.0-92.102 | USN-6609-1 |
| Ubuntu:22.04:LTS | linux | 5.15.0-92.102 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 | no fix listed | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1052.57 | USN-6609-1 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1052.57 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-aws-5.19 | no fix listed | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | 6.2.0-1018.18~22.04.1 | USN-6608-1 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | 6.2.0-1018.18~22.04.1 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-aws-6.5 | 6.5.0-1012.12~22.04.1 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1054.62 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1054.62 | USN-6607-1 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | no fix listed | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-azure-6.2 | 6.2.0-1019.19~22.04.1 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-azure-6.2 | 6.2.0-1019.19~22.04.1 | USN-6608-1 |
| Ubuntu:22.04:LTS | linux-azure-6.5 | 6.5.0-1011.11~22.04.1 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1054.62.1 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1054.62.1 | USN-6607-1 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 | no fix listed | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 | 6.2.0-1019.19~22.04.1.1 | USN-6608-1 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 | 6.2.0-1019.19~22.04.1.1 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1049.57 | USN-6609-1 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1049.57 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-gcp-5.19 | no fix listed | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | 6.2.0-1021.23~22.04.1 | USN-6635-1 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | 6.2.0-1021.23~22.04.1 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-gcp-6.5 | 6.5.0-1011.11~22.04.1 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1049.54 | USN-6609-1 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1049.54 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1035.41 | USN-6609-1 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1035.41 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | no fix listed | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | no fix listed | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-hwe-6.5 | 6.5.0-15.15~22.04.1 | USN-6608-1 |
| Ubuntu:22.04:LTS | linux-hwe-6.5 | 6.5.0-15.15~22.04.1 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1045.48 | USN-6609-1 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1045.48 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1047.53 | USN-6628-1 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1047.53 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1049.54 | USN-6609-1 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1049.54 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-92.102 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 | no fix listed | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | no fix listed | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.5 | 6.5.0-15.15.1.1~22.04.1 | USN-6608-1 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.5 | 6.5.0-15.15.1.1~22.04.1 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1043.43 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1043.43 | USN-6609-2 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 | 6.2.0-1015.15 | USN-6608-2 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 | 6.2.0-1015.15 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-nvidia-6.5 | 6.5.0-1014.14 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra | 5.15.0-1021.21 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra-igx | 5.15.0-1008.8 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | no fix listed | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | no fix listed | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | 6.1.0-1029.29 | USN-6606-1 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | 6.1.0-1029.29 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-oem-6.5 | 6.5.0-1013.14 | USN-6608-1 |
| Ubuntu:22.04:LTS | linux-oem-6.5 | 6.5.0-1013.14 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1050.56 | USN-6609-3 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1050.56 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-oracle-6.5 | 6.5.0-1014.14~22.04.1 | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1045.48 | USN-6609-1 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1045.48 | UBUNTU-CVE-2023-6931 |
| Ubuntu:24.04:LTS | linux-raspi | 6.7.0-1001.1 | UBUNTU-CVE-2023-6931 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-riscv-5.19 | no fix listed | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-starfive-5.19 | no fix listed | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-starfive-6.2 | no fix listed | UBUNTU-CVE-2023-6931 |
| Ubuntu:22.04:LTS | linux-xilinx-zynqmp | 5.15.0-1027.31 | UBUNTU-CVE-2023-6931 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | 4.3.0 – before 4.19.3024.20.0 – before 5.4.2645.5.0 – before 5.10.2045.11.0 – before 5.15.1435.16.0 – before 6.1.686.2.0 – before 6.6.7 |
Weakness: CWE-787 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=382c27f4ed28f803b1f1473ac2d8db0afc795a1b patch
- https://kernel.dance/382c27f4ed28f803b1f1473ac2d8db0afc795a1b
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
- https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-613116.html