# CVE-2022-46663: less: In GNU Less before 609, crafted data can result in "less -R" not filtering ANSI escape sequences sent to the terminal.

CVE-2022-46663 is fixed in 3 products on 1 platform, first by less 590-1ubuntu0.22.04.1, released February 7, 2023. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-46663
- Priority: High
- CVSS: 7.5 (Medium)
- EPSS: 0.0141
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 7, 2023

## Description

In GNU Less before 609, crafted data can result in "less -R" not filtering ANSI escape sequences sent to the terminal.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | less Debian 12.15 (bookworm) | 590-1.2 | [DEBIAN-CVE-2022-46663](https://patchblox.com/security/data/fix/linux/debian-cve-2022-46663.md) | Feb 7, 2023 |
| Linux | less Debian 13.5 (trixie) | 590-1.2 | [DEBIAN-CVE-2022-46663](https://patchblox.com/security/data/fix/linux/debian-cve-2022-46663.md) | Feb 7, 2023 |
| Linux | less Debian 14 | 590-1.2 | [DEBIAN-CVE-2022-46663](https://patchblox.com/security/data/fix/linux/debian-cve-2022-46663.md) | Feb 7, 2023 |
| Linux | less RHEL 9 | 0:590-2.el9_2 | [RHSA-2023:3725](https://patchblox.com/security/data/fix/linux/rhsa-2023-3725.md) | Jun 21, 2023 |
| Linux | less Ubuntu 22.04.1 LTS (jammy) | 590-1ubuntu0.22.04.1 | [less 590-1ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-less-590-1ubuntu0.22.04.1.md) | Feb 7, 2023 |
| Linux | less almalinux 9 | 590-2.el9_2 | [ALSA-2023:3725](https://patchblox.com/security/data/fix/linux/alsa-2023-3725.md) | Jun 21, 2023 |
| Linux | less amzn 2023 | 608-2.amzn2023.0.1 | [ALAS2023-2023-123](https://patchblox.com/security/data/fix/linux/alas2023-2023-123.md) | Mar 6, 2023 |
| Linux | less ol 9 | 0:590-2.el9_2 | [ELSA-2023-3725](https://patchblox.com/security/data/fix/linux/elsa-2023-3725.md) | Jun 21, 2023 |
| Linux | less rocky 9 | 0:590-2.el9_2 | [RLSA-2023:3725](https://patchblox.com/security/data/fix/linux/rlsa-2023-3725.md) | Aug 31, 2023 |
| Linux | less-debuginfo amzn 2023 | 608-2.amzn2023.0.1 | [ALAS2023-2023-123](https://patchblox.com/security/data/fix/linux/alas2023-2023-123.md) | Mar 6, 2023 |
| Linux | less-debugsource amzn 2023 | 608-2.amzn2023.0.1 | [ALAS2023-2023-123](https://patchblox.com/security/data/fix/linux/alas2023-2023-123.md) | Mar 6, 2023 |

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Data as of 2026-11-08T06:59:42Z 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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