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01 Record

CVE-2023-4641

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

MediumPUBLISHEDCNA: redhat
CNA base score4.7 CVSS v3.xCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
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02 Description

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

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.25% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 17.0% of scored records. A rank, not a probability.
NVD base score
5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-12-27 15:43Z2 YR AGO
Last updated
2025-11-03 19:28Z11 MO AGO
Reserved
2023-08-30
Assigning CNA
redhat
Record state
PUBLISHED
Severity
Medium (CVSS 4.7)
CNA CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Weaknesses
  • CWE-303Incorrect Implementation of Authentication AlgorithmBase
  • CWE-287Improper AuthenticationClass
Data version
5.2
Document digest
ca86258bbef9f70c0554ba84cf6330b6a50bb83a6f473f51c22208d767673ebc

05 Affected products

VendorProductVersionsPlatforms
Red HatRed Hat Enterprise Linux 8Not specified—
Red HatRed Hat Enterprise Linux 8.6 Extended Update SupportNot specified—
Red HatRed Hat Enterprise Linux 8.8 Extended Update SupportNot specified—
Red HatRed Hat Enterprise Linux 9Not specified—
Red HatRed Hat Enterprise Linux 6Not specified—
Red HatRed Hat Enterprise Linux 7Not specified—

06 References

07 Fixed in

AlmaLinux 8

  • shadow-utils
    Fixed in 2:4.6-19.el8
  • shadow-utils-subid
    Fixed in 2:4.6-19.el8
  • shadow-utils-subid-devel
    Fixed in 2:4.6-19.el8

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 9

  • shadow-utils
    Fixed in 2:4.9-8.el9
  • shadow-utils-subid
    Fixed in 2:4.9-8.el9
  • shadow-utils-subid-devel
    Fixed in 2:4.9-8.el9

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 8

  • shadow-utils
    Fixed in 2:4.6-19.el8
  • shadow-utils-subid
    Fixed in 2:4.6-19.el8
  • shadow-utils-subid-devel
    Fixed in 2:4.6-19.el8

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 9

  • shadow-utils
    Fixed in 2:4.9-8.el9
  • shadow-utils-subid
    Fixed in 2:4.9-8.el9
  • shadow-utils-subid-devel
    Fixed in 2:4.9-8.el9

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Debian 12

  • shadow
    Fixed in 1:4.13+dfsg1-1+deb12u1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • shadow
    Fixed in 1:4.13+dfsg1-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • shadow
    Fixed in 1:4.13+dfsg1-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • shadow
    Fixed in 1:4.8.1-1ubuntu5.20.04.5

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • shadow
    Fixed in 1:4.8.1-2ubuntu2.2

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 14.04 LTS

  • shadow
    Fixed in 1:4.1.5.1-1ubuntu9.5+esm4
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 16.04 LTS

  • shadow
    Fixed in 1:4.2-3.1ubuntu5.5+esm4
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 18.04 LTS

  • shadow
    Fixed in 1:4.5-1ubuntu2.5+esm1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.