# CVE-2022-36123: linux: The Linux kernel before 5.18.13 lacks a certain clear operation for the block starting symbol (.bss)

CVE-2022-36123 is fixed in 20 products on 1 platform, first by DEBIAN-CVE-2022-36123, released July 29, 2022. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-36123
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0089
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 29, 2022

## Description

The Linux kernel before 5.18.13 lacks a certain clear operation for the block starting symbol (.bss). This allows Xen PV guest OS users to cause a denial of service or gain privileges.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | bpftool amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | bpftool-debuginfo amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | kernel amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | kernel-debuginfo amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | kernel-debuginfo-common-aarch64 amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | kernel-debuginfo-common-x86_64 amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | kernel-devel amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | kernel-headers amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | kernel-libbpf amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | kernel-libbpf-devel amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | kernel-libbpf-static amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | kernel-livepatch-6.1.10-15.42 amzn 2023 | 1.0-0.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | kernel-tools amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | kernel-tools-debuginfo amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | kernel-tools-devel amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | linux Debian 12.15 (bookworm) | 5.18.14-1 | [DEBIAN-CVE-2022-36123](https://patchblox.com/security/data/fix/linux/debian-cve-2022-36123.md) | Jul 29, 2022 |
| Linux | linux Debian 13.5 (trixie) | 5.18.14-1 | [DEBIAN-CVE-2022-36123](https://patchblox.com/security/data/fix/linux/debian-cve-2022-36123.md) | Jul 29, 2022 |
| Linux | linux Debian 14 | 5.18.14-1 | [DEBIAN-CVE-2022-36123](https://patchblox.com/security/data/fix/linux/debian-cve-2022-36123.md) | Jul 29, 2022 |
| Linux | perf amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | perf-debuginfo amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | python3-perf amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |
| Linux | python3-perf-debuginfo amzn 2023 | 6.1.10-15.42.amzn2023 | [ALAS2023-2023-070](https://patchblox.com/security/data/fix/linux/alas2023-2023-070.md) | Feb 17, 2023 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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