CVE-2021-44513

Publication date 7 December 2021

Last updated 11 July 2025

Ubuntu priority

Cvss 3 Severity Score

Insecure creation of temporary directories in tmate-ssh-server 2.3.0 allows a local attacker to compromise the integrity of session handling.

Show unmaintained releases

Package	Ubuntu Release	Status
tmate-ssh-server	26.04 LTS resolute	Vulnerable
	25.10 questing	Ignored end of life, was needed
	25.04 plucky	Ignored end of life, was needed
	24.10 oracular	Ignored end of life, was needed
	24.04 LTS noble	Vulnerable
	23.10 mantic	Ignored end of life, was needed
	23.04 lunar	Ignored end of life, was needed
	22.10 kinetic	Ignored end of life, was needed
	22.04 LTS jammy	Vulnerable
	21.10 impish	Ignored end of life
	21.04 hirsute	Ignored end of life
	20.04 LTS focal	Not in release
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release

CVSS version: CVSS v3.0

Base score 7.0 · High

Base metrics

Scores

Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H