CVE Vulnerabilities

CVE-2023-4641

Improper Authentication

Published: Dec 27, 2023 | Modified: May 03, 2024
CVSS 3.x
5.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS 2.x
RedHat/V2
RedHat/V3
4.7 LOW
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Ubuntu
LOW

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.

Weakness

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Affected Software

Name Vendor Start Version End Version
Shadow-utils Shadow-maint * 4.14.0 (excluding)
Red Hat Enterprise Linux 8 RedHat shadow-utils-2:4.6-19.el8 *
Red Hat Enterprise Linux 8.6 Extended Update Support RedHat shadow-utils-2:4.6-17.el8_6 *
Red Hat Enterprise Linux 8.8 Extended Update Support RedHat shadow-utils-2:4.6-17.el8_8.2 *
Red Hat Enterprise Linux 9 RedHat shadow-utils-2:4.9-8.el9 *
Shadow Ubuntu bionic *
Shadow Ubuntu esm-infra/bionic *
Shadow Ubuntu esm-infra/xenial *
Shadow Ubuntu focal *
Shadow Ubuntu jammy *
Shadow Ubuntu lunar *
Shadow Ubuntu mantic *
Shadow Ubuntu trusty *
Shadow Ubuntu trusty/esm *
Shadow Ubuntu upstream *
Shadow Ubuntu xenial *

Potential Mitigations

References