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CVE-2023-4641

17
FAUCET Score

CVE-2023-4641 is a medium-severity flaw in shadow-utils, affecting Red Hat and shadow_maint products. It occurs when a new password is entered twice; if the second entry fails, the buffer storing the first password is not properly cleared, potentially allowing an attacker with local access to retrieve the password from memory. With a CVSS score of 5.5, this vulnerability has a local attack vector and low attack complexity, leading to a high confidentiality impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.14.0CPE matchmatch criteria
cpe:2.3:a:shadow-maint:shadow-utils:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:a:redhat:codeready_linux_builder:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:a:redhat:codeready_linux_builder:9.0:*:*:*:*:*:*:*
8.0_aarch64CPE matchmatch criteria
cpe:2.3:a:redhat:codeready_linux_builder_for_arm64:8.0_aarch64:*:*:*:*:*:*:*
9.0_aarch64CPE matchmatch criteria
cpe:2.3:a:redhat:codeready_linux_builder_for_arm64:9.0_aarch64:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.7MEDIUM

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.0
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.26%
Probability of exploitation in next 30 days
EPSS Percentile
17.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0026 is in the 72nd percentile among its peer group of 15,932 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (8)

denopatch availablevia llm_extracted
View patch
keraspatch availablevia llm_extracted
View patch
microsoftpatch availablevia msrc
Product: cbl2 shadow-utils 4.9-14 on CBL Mariner 2.0Fixed in: 4.9-14
microsoftpatch availablevia msrc
Product: 18221-16823Fixed in: 4.9-14
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: shadow-utils-2:4.9-8.el9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: shadow-utils-2:4.6-19.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.6 Extended Update SupportFixed in: shadow-utils-2:4.6-17.el8_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.8 Extended Update SupportFixed in: shadow-utils-2:4.6-17.el8_8.2
View patch

Vendor Advisories (4)

denollm-deno-b67a3af2ce0be075CRITICAL

HP ThinPro 8.0 SP 9 Security Updates

Jun 17, 2024
kerasllm-keras-7d8c31fee70361dcCRITICAL

HP ThinPro 8.0 SP 9 Security Updates

Jun 17, 2024
microsoft2023-Dec/CVE-2023-4641Moderate

Shadow-utils: possible password leak during passwd(1) change

Dec 12, 2023
redhatCVE-2023-4641Low

shadow-utils: possible password leak during passwd(1) change

Jun 17, 2023

References

lists.debian.org / debian-lts-announce/2025/04/msg00026.html
access.redhat.com / errata/RHSA-2023:6632
Third Party Advisory
access.redhat.com / errata/RHSA-2023:7112
Third Party Advisory
access.redhat.com / errata/RHSA-2024:0417
access.redhat.com / errata/RHSA-2024:2577
access.redhat.com / security/cve/CVE-2023-4641
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue Tracking