# CVE-2023-3269: linux: A vulnerability exists in the memory management subsystem of the Linux kernel

CVE-2023-3269 is fixed in 20 products on 1 platform, first by ALAS2023-2023-234, released June 30, 2023. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-3269
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0129
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 30, 2023

## Description

A vulnerability exists in the memory management subsystem of the Linux kernel. The lock handling for accessing and updating virtual memory areas (VMAs) is incorrect, leading to use-after-free problems. This issue can be successfully exploited to execute arbitrary kernel code, escalate containers, and gain root privileges.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | bpftool amzn 2023 | 6.1.34-59.116.amzn2023 | [ALAS2023-2023-234](https://patchblox.com/security/data/fix/linux/alas2023-2023-234.md) | Jun 30, 2023 |
| Linux | bpftool-debuginfo amzn 2023 | 6.1.34-59.116.amzn2023 | [ALAS2023-2023-234](https://patchblox.com/security/data/fix/linux/alas2023-2023-234.md) | Jun 30, 2023 |
| Linux | kernel amzn 2023 | 6.1.34-59.116.amzn2023 | [ALAS2023-2023-234](https://patchblox.com/security/data/fix/linux/alas2023-2023-234.md) | Jun 30, 2023 |
| Linux | kernel-debuginfo amzn 2023 | 6.1.34-59.116.amzn2023 | [ALAS2023-2023-234](https://patchblox.com/security/data/fix/linux/alas2023-2023-234.md) | Jun 30, 2023 |
| Linux | kernel-debuginfo-common-aarch64 amzn 2023 | 6.1.34-59.116.amzn2023 | [ALAS2023-2023-234](https://patchblox.com/security/data/fix/linux/alas2023-2023-234.md) | Jun 30, 2023 |
| Linux | kernel-debuginfo-common-x86_64 amzn 2023 | 6.1.34-59.116.amzn2023 | [ALAS2023-2023-234](https://patchblox.com/security/data/fix/linux/alas2023-2023-234.md) | Jun 30, 2023 |
| Linux | kernel-devel amzn 2023 | 6.1.34-59.116.amzn2023 | [ALAS2023-2023-234](https://patchblox.com/security/data/fix/linux/alas2023-2023-234.md) | Jun 30, 2023 |
| Linux | kernel-headers amzn 2023 | 6.1.34-59.116.amzn2023 | [ALAS2023-2023-234](https://patchblox.com/security/data/fix/linux/alas2023-2023-234.md) | Jun 30, 2023 |
| Linux | kernel-libbpf amzn 2023 | 6.1.34-59.116.amzn2023 | [ALAS2023-2023-234](https://patchblox.com/security/data/fix/linux/alas2023-2023-234.md) | Jun 30, 2023 |
| Linux | kernel-libbpf-devel amzn 2023 | 6.1.34-59.116.amzn2023 | [ALAS2023-2023-234](https://patchblox.com/security/data/fix/linux/alas2023-2023-234.md) | Jun 30, 2023 |
| Linux | kernel-libbpf-static amzn 2023 | 6.1.34-59.116.amzn2023 | [ALAS2023-2023-234](https://patchblox.com/security/data/fix/linux/alas2023-2023-234.md) | Jun 30, 2023 |
| Linux | kernel-livepatch-6.1.34-59.116 amzn 2023 | 1.0-0.amzn2023 | [ALAS2023-2023-234](https://patchblox.com/security/data/fix/linux/alas2023-2023-234.md) | Jun 30, 2023 |
| Linux | kernel-tools amzn 2023 | 6.1.34-59.116.amzn2023 | [ALAS2023-2023-234](https://patchblox.com/security/data/fix/linux/alas2023-2023-234.md) | Jun 30, 2023 |
| Linux | kernel-tools-debuginfo amzn 2023 | 6.1.34-59.116.amzn2023 | [ALAS2023-2023-234](https://patchblox.com/security/data/fix/linux/alas2023-2023-234.md) | Jun 30, 2023 |
| Linux | kernel-tools-devel amzn 2023 | 6.1.34-59.116.amzn2023 | [ALAS2023-2023-234](https://patchblox.com/security/data/fix/linux/alas2023-2023-234.md) | Jun 30, 2023 |
| Linux | linux Debian 12.15 (bookworm) | 6.1.37-1 | [DEBIAN-CVE-2023-3269](https://patchblox.com/security/data/fix/linux/debian-cve-2023-3269.md) | Jul 11, 2023 |
| Linux | linux Debian 13.5 (trixie) | 6.3.11-1 | [DEBIAN-CVE-2023-3269](https://patchblox.com/security/data/fix/linux/debian-cve-2023-3269.md) | Jul 11, 2023 |
| Linux | linux Debian 14 | 6.3.11-1 | [DEBIAN-CVE-2023-3269](https://patchblox.com/security/data/fix/linux/debian-cve-2023-3269.md) | Jul 11, 2023 |
| Linux | perf amzn 2023 | 6.1.34-59.116.amzn2023 | [ALAS2023-2023-234](https://patchblox.com/security/data/fix/linux/alas2023-2023-234.md) | Jun 30, 2023 |
| Linux | perf-debuginfo amzn 2023 | 6.1.34-59.116.amzn2023 | [ALAS2023-2023-234](https://patchblox.com/security/data/fix/linux/alas2023-2023-234.md) | Jun 30, 2023 |
| Linux | python3-perf amzn 2023 | 6.1.34-59.116.amzn2023 | [ALAS2023-2023-234](https://patchblox.com/security/data/fix/linux/alas2023-2023-234.md) | Jun 30, 2023 |
| Linux | python3-perf-debuginfo amzn 2023 | 6.1.34-59.116.amzn2023 | [ALAS2023-2023-234](https://patchblox.com/security/data/fix/linux/alas2023-2023-234.md) | Jun 30, 2023 |

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