# CVE-2023-6111: linux: A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local...

CVE-2023-6111 is fixed in 34 products on 1 platform, first by DEBIAN-CVE-2023-6111, released November 14, 2023. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-6111
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0032
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 14, 2023

## Description

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.  The function nft_trans_gc_catchall did not remove the catchall set element from the catchall_list when the argument sync is true, making it possible to free a catchall set element many times.  We recommend upgrading past commit 93995bf4af2c5a99e2a87f0cd5ce547d31eb7630.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | bpftool amzn 2023 | 6.1.66-91.160.amzn2023 | [ALAS2023-2023-461](https://patchblox.com/security/data/fix/linux/alas2023-2023-461.md) | Dec 13, 2023 |
| Linux | bpftool ol 8 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | bpftool ol 9 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | bpftool-debuginfo amzn 2023 | 6.1.66-91.160.amzn2023 | [ALAS2023-2023-461](https://patchblox.com/security/data/fix/linux/alas2023-2023-461.md) | Dec 13, 2023 |
| Linux | kernel amzn 2023 | 6.1.66-91.160.amzn2023 | [ALAS2023-2023-461](https://patchblox.com/security/data/fix/linux/alas2023-2023-461.md) | Dec 13, 2023 |
| Linux | kernel-debuginfo amzn 2023 | 6.1.66-91.160.amzn2023 | [ALAS2023-2023-461](https://patchblox.com/security/data/fix/linux/alas2023-2023-461.md) | Dec 13, 2023 |
| Linux | kernel-debuginfo-common-aarch64 amzn 2023 | 6.1.66-91.160.amzn2023 | [ALAS2023-2023-461](https://patchblox.com/security/data/fix/linux/alas2023-2023-461.md) | Dec 13, 2023 |
| Linux | kernel-debuginfo-common-x86_64 amzn 2023 | 6.1.66-91.160.amzn2023 | [ALAS2023-2023-461](https://patchblox.com/security/data/fix/linux/alas2023-2023-461.md) | Dec 13, 2023 |
| Linux | kernel-devel amzn 2023 | 6.1.66-91.160.amzn2023 | [ALAS2023-2023-461](https://patchblox.com/security/data/fix/linux/alas2023-2023-461.md) | Dec 13, 2023 |
| Linux | kernel-headers amzn 2023 | 6.1.66-91.160.amzn2023 | [ALAS2023-2023-461](https://patchblox.com/security/data/fix/linux/alas2023-2023-461.md) | Dec 13, 2023 |
| Linux | kernel-libbpf amzn 2023 | 6.1.66-91.160.amzn2023 | [ALAS2023-2023-461](https://patchblox.com/security/data/fix/linux/alas2023-2023-461.md) | Dec 13, 2023 |
| Linux | kernel-libbpf-devel amzn 2023 | 6.1.66-91.160.amzn2023 | [ALAS2023-2023-461](https://patchblox.com/security/data/fix/linux/alas2023-2023-461.md) | Dec 13, 2023 |
| Linux | kernel-libbpf-static amzn 2023 | 6.1.66-91.160.amzn2023 | [ALAS2023-2023-461](https://patchblox.com/security/data/fix/linux/alas2023-2023-461.md) | Dec 13, 2023 |
| Linux | kernel-livepatch-6.1.66-91.160 amzn 2023 | 1.0-0.amzn2023 | [ALAS2023-2023-461](https://patchblox.com/security/data/fix/linux/alas2023-2023-461.md) | Dec 13, 2023 |
| Linux | kernel-modules-extra amzn 2023 | 6.1.66-91.160.amzn2023 | [ALAS2023-2023-461](https://patchblox.com/security/data/fix/linux/alas2023-2023-461.md) | Dec 13, 2023 |
| Linux | kernel-tools amzn 2023 | 6.1.66-91.160.amzn2023 | [ALAS2023-2023-461](https://patchblox.com/security/data/fix/linux/alas2023-2023-461.md) | Dec 13, 2023 |
| Linux | kernel-tools-debuginfo amzn 2023 | 6.1.66-91.160.amzn2023 | [ALAS2023-2023-461](https://patchblox.com/security/data/fix/linux/alas2023-2023-461.md) | Dec 13, 2023 |
| Linux | kernel-tools-devel amzn 2023 | 6.1.66-91.160.amzn2023 | [ALAS2023-2023-461](https://patchblox.com/security/data/fix/linux/alas2023-2023-461.md) | Dec 13, 2023 |
| Linux | kernel-uek ol 8 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | kernel-uek ol 9 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | kernel-uek-container ol 8 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | kernel-uek-container ol 9 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | kernel-uek-container-debug ol 8 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | kernel-uek-container-debug ol 9 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | kernel-uek-core ol 8 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | kernel-uek-core ol 9 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | kernel-uek-debug ol 8 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | kernel-uek-debug ol 9 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | kernel-uek-debug-core ol 8 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | kernel-uek-debug-core ol 9 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | kernel-uek-debug-devel ol 8 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | kernel-uek-debug-devel ol 9 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | kernel-uek-debug-modules ol 8 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | kernel-uek-debug-modules ol 9 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | kernel-uek-debug-modules-extra ol 8 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | kernel-uek-debug-modules-extra ol 9 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | kernel-uek-devel ol 8 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | kernel-uek-devel ol 9 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | kernel-uek-doc ol 8 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | kernel-uek-doc ol 9 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | kernel-uek-modules ol 8 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | kernel-uek-modules ol 9 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | kernel-uek-modules-extra ol 8 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | kernel-uek-modules-extra ol 9 | 0:5.15.0-203.146.5.1.el9uek | [ELSA-2024-12159](https://patchblox.com/security/data/fix/linux/elsa-2024-12159.md) | Feb 13, 2024 |
| Linux | linux Debian 12.15 (bookworm) | 6.1.64-1 | [DEBIAN-CVE-2023-6111](https://patchblox.com/security/data/fix/linux/debian-cve-2023-6111.md) | Nov 14, 2023 |
| Linux | linux Debian 13.5 (trixie) | 6.5.13-1 | [DEBIAN-CVE-2023-6111](https://patchblox.com/security/data/fix/linux/debian-cve-2023-6111.md) | Nov 14, 2023 |
| Linux | linux Debian 14 | 6.5.13-1 | [DEBIAN-CVE-2023-6111](https://patchblox.com/security/data/fix/linux/debian-cve-2023-6111.md) | Nov 14, 2023 |
| Linux | perf amzn 2023 | 6.1.66-91.160.amzn2023 | [ALAS2023-2023-461](https://patchblox.com/security/data/fix/linux/alas2023-2023-461.md) | Dec 13, 2023 |
| Linux | perf-debuginfo amzn 2023 | 6.1.66-91.160.amzn2023 | [ALAS2023-2023-461](https://patchblox.com/security/data/fix/linux/alas2023-2023-461.md) | Dec 13, 2023 |
| Linux | python3-perf amzn 2023 | 6.1.66-91.160.amzn2023 | [ALAS2023-2023-461](https://patchblox.com/security/data/fix/linux/alas2023-2023-461.md) | Dec 13, 2023 |
| Linux | python3-perf-debuginfo amzn 2023 | 6.1.66-91.160.amzn2023 | [ALAS2023-2023-461](https://patchblox.com/security/data/fix/linux/alas2023-2023-461.md) | Dec 13, 2023 |

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