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CVE-2021-23239

Published: 12 January 2021

The sudoedit personality of Sudo before 1.9.5 may allow a local unprivileged user to perform arbitrary directory-existence tests by winning a sudo_edit.c race condition in replacing a user-controlled directory by a symlink to an arbitrary path.

Priority

Low

Cvss 3 Severity Score

2.5

Score breakdown

Status

Package Release Status
sudo
Launchpad, Ubuntu, Debian
bionic
Released (1.8.21p2-3ubuntu1.4)
focal
Released (1.8.31-1ubuntu1.2)
groovy
Released (1.9.1-1ubuntu1.1)
hirsute
Released (1.9.4p2-2ubuntu2)
impish
Released (1.9.4p2-2ubuntu2)
jammy
Released (1.9.4p2-2ubuntu2)
kinetic
Released (1.9.4p2-2ubuntu2)
lunar
Released (1.9.4p2-2ubuntu2)
mantic
Released (1.9.4p2-2ubuntu2)
trusty Needed

upstream Needs triage

xenial
Released (1.8.16-0ubuntu1.10)
Patches:
upstream: https://www.sudo.ws/repos/sudo/rev/ea19d0073c02

Severity score breakdown

Parameter Value
Base score 2.5
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality Low
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N