Vulnerability-Lookup

SUSE-SU-2023:3591-1

Vulnerability from csaf_suse - Published: 2023-09-13 06:33 - Updated: 2026-09-20 15:19

Summary

Security update for shadow

Severity

Low

Notes

Title of the patch: Security update for shadow

Description of the patch: This update for shadow fixes the following issues: - CVE-2023-4641: Fixed potential password leak (bsc#1214806).

Patchnames: SUSE-2023-3591,SUSE-SLE-Micro-5.4-2023-3591

CVE-2023-4641

3.3 (Low)


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

Affected products

Recommended 4 products

Product	Version	Remediation
Unresolved product id: SUSE Linux Enterprise Micro 5.4:login_defs-0:4.8.1-150400.3.3.1.noarch	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Micro 5.4:shadow-0:4.8.1-150400.3.3.1.aarch64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Micro 5.4:shadow-0:4.8.1-150400.3.3.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Micro 5.4:shadow-0:4.8.1-150400.3.3.1.x86_64	—	Vendor Fix

Threats

Impact low

References

8 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/s…	self
https://www.suse.com/support/update/announcement/…	self
https://lists.suse.com/pipermail/sle-security-upd…	self
https://bugzilla.suse.com/1214806	self
https://www.suse.com/security/cve/CVE-2023-4641/	self
https://www.suse.com/security/cve/CVE-2023-4641	external
https://bugzilla.suse.com/1214806	external

JSON

To clipboard

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}

CVE-2023-4641 (GCVE-0-2023-4641)

Vulnerability from cvelistv5 – Published: 2023-12-27 15:43 – Updated: 2025-11-03 19:28

Title

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

Summary

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.

Severity

4.7 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-01-02 18:19 UTC

CWE

CWE-303 - Incorrect Implementation of Authentication Algorithm

Assigner

redhat redhat root

References

7 references

URL	Tags
https://access.redhat.com/errata/RHSA-2023:6632	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2023:7112	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0417	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:2577	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2023-4641	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2215945	issue-trackingx_refsource_REDHAT
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

7 products

Vendor	Product	Version
		Unaffected: 4.14.0-rc1 , < * (semver)
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 2:4.6-19.el8 , < * (rpm) cpe:/a:redhat:enterprise_linux:8::crb cpe:/o:redhat:enterprise_linux:8::baseos
Red Hat	Red Hat Enterprise Linux 8.6 Extended Update Support	Unaffected: 2:4.6-17.el8_6 , < * (rpm) cpe:/o:redhat:rhel_eus:8.6::baseos cpe:/a:redhat:rhel_eus:8.6::crb
Red Hat	Red Hat Enterprise Linux 8.8 Extended Update Support	Unaffected: 2:4.6-17.el8_8.2 , < * (rpm) cpe:/o:redhat:rhel_eus:8.8::baseos cpe:/a:redhat:rhel_eus:8.8::crb
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 2:4.9-8.el9 , < * (rpm) cpe:/a:redhat:enterprise_linux:9::crb cpe:/o:redhat:enterprise_linux:9::baseos
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7

Date Public

2023-06-17 00:00

Show details on NVD website

JSON

To clipboard

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          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "2:4.9-8.el9",
              "versionType": "rpm"
            }
          ]
        },
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          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
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          "product": "Red Hat Enterprise Linux 6",
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          "product": "Red Hat Enterprise Linux 7",
          "vendor": "Red Hat"
        }
      ],
      "datePublic": "2023-06-17T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "namespace": "https://access.redhat.com/security/updates/classification/",
              "value": "Low"
            },
            "type": "Red Hat severity rating"
          }
        },
        {
          "cvssV3_1": {
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            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 4.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
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        }
      ],
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            {
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              "description": "Incorrect Implementation of Authentication Algorithm",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
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          "tags": [
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        },
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        },
        {
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          "tags": [
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        },
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          "name": "RHSA-2024:2577",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
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        },
        {
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            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/security/cve/CVE-2023-4641"
        },
        {
          "name": "RHBZ#2215945",
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            "x_refsource_REDHAT"
          ],
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      ],
      "timeline": [
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          "time": "2023-06-17T00:00:00.000Z",
          "value": "Reported to Red Hat."
        },
        {
          "lang": "en",
          "time": "2023-06-17T00:00:00.000Z",
          "value": "Made public."
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      ],
      "title": "Shadow-utils: possible password leak during passwd(1) change",
      "x_redhatCweChain": "CWE-303: Incorrect Implementation of Authentication Algorithm"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2023-4641",
    "datePublished": "2023-12-27T15:43:22.929Z",
    "dateReserved": "2023-08-30T17:16:27.137Z",
    "dateUpdated": "2025-11-03T19:28:32.370Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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SUSE-SU-2023:3591-1

CVE-2023-4641 (GCVE-0-2023-4641)

Tags

Sightings

Nomenclature

Related by attack behaviour