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CVE-2022-45063

Publication date 10 November 2022

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

xterm before 375 allows code execution via font ops, e.g., because an OSC 50 response may have Ctrl-g and therefore lead to command execution within the vi line-editing mode of Zsh. NOTE: font ops are not allowed in the xterm default configurations of some Linux distributions.

Read the notes from the security team

Status

Package Ubuntu Release Status
xterm 23.04 lunar
Not affected
22.10 kinetic Ignored end of life, was ignored [code-not-compiled]
22.04 LTS jammy Ignored code-not-compiled
20.04 LTS focal Ignored code-not-compiled
18.04 LTS bionic Ignored code-not-compiled
16.04 LTS xenial Ignored code-not-compiled
14.04 LTS trusty Ignored end of standard support

Notes

eslerm

disabled by default, see 904_fontops.diff and 902_windowops.diff

Severity score breakdown

Parameter Value
Base score 9.8 · Critical
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H