synced 14 MIN AGO
01 Record

CVE-2023-36054

lib/kadm5/kadm_rpc_xdr.c in MIT Kerberos 5 (aka krb5) before 1.20.2 and 1.21.x before 1.21.1 frees an uninitialized pointer. A remote authenticated user can trigger a kadmind crash. This occurs

UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector
View raw JSON

02 Description

lib/kadm5/kadm_rpc_xdr.c in MIT Kerberos 5 (aka krb5) before 1.20.2 and 1.21.x before 1.21.1 frees an uninitialized pointer. A remote authenticated user can trigger a kadmind crash. This occurs

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 ImpactpartialSuccessful exploitation gives limited 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
2.81% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 86.0% of scored records. A rank, not a probability.
NVD base score
6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Moderate. 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
2023-08-07 00:00Z3 YR AGO
Last updated
2024-10-11 13:57Z2 YR AGO
Reserved
2023-06-21
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-824Access of Uninitialized PointerBase
Data version
5.1
Document digest
79e94d64ea372b655310a107fee7b29dde7d9990f4536be992a662e83991b6a8

05 Affected products

VendorProductVersionsPlatforms
debiandebian_linuxNot specified—
mitkerberos_5Not specified—
netappactive_iq_unified_managerNot specified—
netappclustered_data_ontapNot specified—
netapphciNot specified—
netappmanagement_services_for_element_softwareNot specified—
netappontap_toolsNot specified—
redhatenterprise_linuxNot specified—
redhatjboss_enterprise_application_platformNot specified—

06 References

07 Fixed in

AlmaLinux 9

  • krb5-devel
    Fixed in 1.21.1-1.el9
  • krb5-libs
    Fixed in 1.21.1-1.el9
  • krb5-pkinit
    Fixed in 1.21.1-1.el9
  • krb5-server
    Fixed in 1.21.1-1.el9
  • krb5-server-ldap
    Fixed in 1.21.1-1.el9
  • krb5-workstation
    Fixed in 1.21.1-1.el9
  • libkadm5
    Fixed in 1.21.1-1.el9

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

CloudLinux 9

  • krb5-devel
    Fixed in 1.21.1-1.el9
  • krb5-libs
    Fixed in 1.21.1-1.el9
  • krb5-pkinit
    Fixed in 1.21.1-1.el9
  • krb5-server
    Fixed in 1.21.1-1.el9
  • krb5-server-ldap
    Fixed in 1.21.1-1.el9
  • krb5-workstation
    Fixed in 1.21.1-1.el9
  • libkadm5
    Fixed in 1.21.1-1.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

  • krb5
    Fixed in 1.20.1-2+deb12u1

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

Debian 13

  • krb5
    Fixed in 1.20.1-3

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

Debian 14

  • krb5
    Fixed in 1.20.1-3

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

Ubuntu 20.04 LTS

  • krb5
    Fixed in 1.17-6ubuntu4.4

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

Ubuntu 22.04 LTS

  • krb5
    Fixed in 1.19.2-2ubuntu0.3

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

Ubuntu Pro 14.04 LTS

  • krb5
    Fixed in 1.12+dfsg-2ubuntu5.4+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

  • krb5
    Fixed in 1.13.2+dfsg-5ubuntu2.2+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

  • krb5
    Fixed in 1.16-2ubuntu0.4+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.