CVE-2021-23239

LOW

sudo < 1.9.5 - Unauthenticated Arbitrary Directory-Existence Test via sudoedit Race Condition

Title source: llm
STIX 2.1

Description

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.

References (7)

Core 7
Core References
Third Party Advisory vendor-advisory
https://security.gentoo.org/glsa/202101-33
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2022/11/msg00007.html
Exploit, Issue Tracking, Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=CVE-2021-23239
Release Notes, Vendor Advisory
https://www.sudo.ws/stable.html#1.9.5

Scores

CVSS v3 2.5
EPSS 0.0010
EPSS Percentile 26.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

Details

CWE
CWE-59
Status published
Products (7)
debian/debian_linux 10.0
fedoraproject/fedora 32
fedoraproject/fedora 33
netapp/cloud_backup
netapp/hci_management_node
netapp/solidfire
sudo_project/sudo < 1.8.32
Published Jan 12, 2021
Tracked Since Feb 18, 2026