# CVE-2023-3117: bpftool: A use-after-free flaw was found in the Netfilter subsystem of the Linux kernel when processing named and anonymous se...

CVE-2023-3117 is fixed in 19 products on 1 platform, first by ALAS2023-2023-251, released July 17, 2023. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-3117
- Priority: High
- CVSS: n/a (important)
- EPSS: n/a
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 17, 2023

## Description

A use-after-free flaw was found in the Netfilter subsystem of the Linux kernel when processing named and anonymous sets in batch requests, which can lead to performing arbitrary reads and writes in kernel memory. This flaw allows a local user with CAP_NET_ADMIN capability to crash or potentially escalate their privileges on the system.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | bpftool amzn 2023 | 6.1.38-59.109.amzn2023 | [ALAS2023-2023-251](https://patchblox.com/security/data/fix/linux/alas2023-2023-251.md) | Jul 17, 2023 |
| Linux | bpftool-debuginfo amzn 2023 | 6.1.38-59.109.amzn2023 | [ALAS2023-2023-251](https://patchblox.com/security/data/fix/linux/alas2023-2023-251.md) | Jul 17, 2023 |
| Linux | kernel amzn 2023 | 6.1.38-59.109.amzn2023 | [ALAS2023-2023-251](https://patchblox.com/security/data/fix/linux/alas2023-2023-251.md) | Jul 17, 2023 |
| Linux | kernel-debuginfo amzn 2023 | 6.1.38-59.109.amzn2023 | [ALAS2023-2023-251](https://patchblox.com/security/data/fix/linux/alas2023-2023-251.md) | Jul 17, 2023 |
| Linux | kernel-debuginfo-common-aarch64 amzn 2023 | 6.1.38-59.109.amzn2023 | [ALAS2023-2023-251](https://patchblox.com/security/data/fix/linux/alas2023-2023-251.md) | Jul 17, 2023 |
| Linux | kernel-debuginfo-common-x86_64 amzn 2023 | 6.1.38-59.109.amzn2023 | [ALAS2023-2023-251](https://patchblox.com/security/data/fix/linux/alas2023-2023-251.md) | Jul 17, 2023 |
| Linux | kernel-devel amzn 2023 | 6.1.38-59.109.amzn2023 | [ALAS2023-2023-251](https://patchblox.com/security/data/fix/linux/alas2023-2023-251.md) | Jul 17, 2023 |
| Linux | kernel-headers amzn 2023 | 6.1.38-59.109.amzn2023 | [ALAS2023-2023-251](https://patchblox.com/security/data/fix/linux/alas2023-2023-251.md) | Jul 17, 2023 |
| Linux | kernel-libbpf amzn 2023 | 6.1.38-59.109.amzn2023 | [ALAS2023-2023-251](https://patchblox.com/security/data/fix/linux/alas2023-2023-251.md) | Jul 17, 2023 |
| Linux | kernel-libbpf-devel amzn 2023 | 6.1.38-59.109.amzn2023 | [ALAS2023-2023-251](https://patchblox.com/security/data/fix/linux/alas2023-2023-251.md) | Jul 17, 2023 |
| Linux | kernel-libbpf-static amzn 2023 | 6.1.38-59.109.amzn2023 | [ALAS2023-2023-251](https://patchblox.com/security/data/fix/linux/alas2023-2023-251.md) | Jul 17, 2023 |
| Linux | kernel-livepatch-6.1.38-59.109 amzn 2023 | 1.0-0.amzn2023 | [ALAS2023-2023-251](https://patchblox.com/security/data/fix/linux/alas2023-2023-251.md) | Jul 17, 2023 |
| Linux | kernel-tools amzn 2023 | 6.1.38-59.109.amzn2023 | [ALAS2023-2023-251](https://patchblox.com/security/data/fix/linux/alas2023-2023-251.md) | Jul 17, 2023 |
| Linux | kernel-tools-debuginfo amzn 2023 | 6.1.38-59.109.amzn2023 | [ALAS2023-2023-251](https://patchblox.com/security/data/fix/linux/alas2023-2023-251.md) | Jul 17, 2023 |
| Linux | kernel-tools-devel amzn 2023 | 6.1.38-59.109.amzn2023 | [ALAS2023-2023-251](https://patchblox.com/security/data/fix/linux/alas2023-2023-251.md) | Jul 17, 2023 |
| Linux | perf amzn 2023 | 6.1.38-59.109.amzn2023 | [ALAS2023-2023-251](https://patchblox.com/security/data/fix/linux/alas2023-2023-251.md) | Jul 17, 2023 |
| Linux | perf-debuginfo amzn 2023 | 6.1.38-59.109.amzn2023 | [ALAS2023-2023-251](https://patchblox.com/security/data/fix/linux/alas2023-2023-251.md) | Jul 17, 2023 |
| Linux | python3-perf amzn 2023 | 6.1.38-59.109.amzn2023 | [ALAS2023-2023-251](https://patchblox.com/security/data/fix/linux/alas2023-2023-251.md) | Jul 17, 2023 |
| Linux | python3-perf-debuginfo amzn 2023 | 6.1.38-59.109.amzn2023 | [ALAS2023-2023-251](https://patchblox.com/security/data/fix/linux/alas2023-2023-251.md) | Jul 17, 2023 |

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