Link Following Affecting sudo package, versions <1.8.21p2-3ubuntu1.4


Severity

Recommended
0.0
low
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.07% (32nd percentile)

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  • Snyk IDSNYK-UBUNTU1804-SUDO-1065097
  • published27 Jan 2021
  • disclosed12 Jan 2021

Introduced: 12 Jan 2021

CVE-2021-23239  (opens in a new tab)
CWE-59  (opens in a new tab)

How to fix?

Upgrade Ubuntu:18.04 sudo to version 1.8.21p2-3ubuntu1.4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream sudo package and not the sudo package as distributed by Ubuntu. See How to fix? for Ubuntu:18.04 relevant fixed versions and status.

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.

CVSS Scores

version 3.1