CVE-2022-46663

Publication date 7 February 2023

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

Description

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

Read the notes from the security team

Status

Package Ubuntu Release Status
less 22.10 kinetic
Fixed 590-1ubuntu0.22.10.1
22.04 LTS jammy
Fixed 590-1ubuntu0.22.04.1
20.04 LTS focal
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected

Notes

alexmurray

affects less versions 566 and later (original bug was introduced in commit 0f810ef16781bf0f59690be63af876bddabf68bf)

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
less

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

Other references