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CVE-2021-28090

Published: 19 March 2021

Tor before 0.4.5.7 allows a remote attacker to cause Tor directory authorities to exit with an assertion failure, aka TROVE-2021-002.

Priority

Medium

Cvss 3 Severity Score

5.3

Score breakdown

Status

Package Release Status
tor
Launchpad, Ubuntu, Debian
focal
Released (0.4.2.7-1ubuntu0.1~esm1)
Available with Ubuntu Pro
jammy Not vulnerable
(0.4.6.10-1)
lunar Not vulnerable
(0.4.7.10-1)
groovy Ignored
(end of life)
hirsute Ignored
(end of life)
upstream
Released (0.3.5.14, 0.4.4.8, 0.4.5.7)
xenial
Released (0.2.9.14-1ubuntu1~16.04.3+esm1)
Available with Ubuntu Pro
impish Ignored
(end of life)
trusty
Released (0.2.4.27-1ubuntu0.1+esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
kinetic Not vulnerable
(0.4.7.10-1)
bionic
Released (0.3.2.10-1ubuntu0.2~esm2)
Available with Ubuntu Pro
mantic Not vulnerable
(0.4.7.10-1)

Severity score breakdown

Parameter Value
Base score 5.3
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact Low
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L