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

Vulnerability from cvelistv5 – Published: 2023-12-27 15:43 – Updated: 2025-11-03 19:28
VLAI?
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
CWE
  • CWE-303 - Incorrect Implementation of Authentication Algorithm
Assigner
References
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
Impacted 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
 Create a notification for this product.
    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
 Create a notification for this product.
    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
 Create a notification for this product.
    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
 Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
 Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
 Create a notification for this product.
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}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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.



Detection rules are retrieved from Rulezet.