Improper Authentication Affecting shadow package, versions <1:4.13+dfsg1-2


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-DEBIAN13-SHADOW-5879155
  • published1 Sept 2023
  • disclosed27 Dec 2023

Introduced: 1 Sep 2023

CVE-2023-4641  (opens in a new tab)
CWE-287  (opens in a new tab)

How to fix?

Upgrade Debian:13 shadow to version 1:4.13+dfsg1-2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream shadow package and not the shadow package as distributed by Debian. See How to fix? for Debian:13 relevant fixed versions and status.

A flaw was found in shadow-utils. When asking for a new password, shadow-utils asks the password twice. If the password fails on the second attempt, shadow-utils fails in cleaning the buffer used to store the first entry. This may allow an attacker with enough access to retrieve the password from the memory.

CVSS Scores

version 3.1