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CVE-2023-4641

Date: December 27, 2023

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.

Language: C

Severity Score

Related Resources (10)

https://security-tracker.debian.org/tracker/CVE-2023-4641
https://bugzilla.redhat.com/show_bug.cgi?id=2215945
https://access.redhat.com/errata/RHSA-2024:0417
https://nvd.nist.gov/vuln/detail/CVE-2023-4641
https://access.redhat.com/errata/RHSA-2023:6632
https://github.com/shadow-maint/shadow/commit/65c88a43a23c2391dcc90c0abda3e839e9c57904
https://access.redhat.com/errata/RHSA-2023:7112
https://access.redhat.com/security/cve/CVE-2023-4641
https://access.redhat.com/errata/RHSA-2024:2577
https://www.mend.io/vulnerability-database/CVE-2023-4641

Severity Score

Weakness Type (CWE)

Improper Authentication

CWE-287

Incorrect Implementation of Authentication Algorithm

CWE-303

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): HIGH
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

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