Link Following Affecting sudo package, versions *


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.1% (42nd percentile)

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  • Snyk IDSNYK-DEBIAN9-SUDO-1059000
  • published12 Jan 2021
  • disclosed12 Jan 2021

Introduced: 12 Jan 2021

CVE-2021-23240  (opens in a new tab)
CWE-59  (opens in a new tab)

How to fix?

There is no fixed version for Debian:9 sudo.

NVD Description

Note: Versions mentioned in the description apply only to the upstream sudo package and not the sudo package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

selinux_edit_copy_tfiles in sudoedit in Sudo before 1.9.5 allows a local unprivileged user to gain file ownership and escalate privileges by replacing a temporary file with a symlink to an arbitrary file target. This affects SELinux RBAC support in permissive mode. Machines without SELinux are not vulnerable.

CVSS Scores

version 3.1