CVE-2023-36054

Name: CVE-2023-36054
Creator: NVD / NIST
Published: 2023-08-07T19:15:09.84+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 2.11%

Last modified Jun 17, 2026

CVE-2023-36054 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 2.11% chance of exploitation in the next 30 days.

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 because _xdr_kadm5_principal_ent_rec does not validate the relationship between n_key_data and the key_data array count.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

2.11%

79.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-824

Affected Software

Vendor	Product	Versions
Mit	Kerberos 5	< 1.20.2
Mit	Kerberos 5	1.21
Debian	Debian Linux	10.0
Netapp	Active Iq Unified Manager	All versions
Netapp	Clustered Data Ontap	9.0
Netapp	Hci	All versions
Netapp	Management Services For Element Software	All versions
Netapp	Ontap Tools	All versions

References

https://github.com/krb5/krb5/commit/ef08b09c9459551aabbe7924fb176f1583053cddPatch
https://github.com/krb5/krb5/compare/krb5-1.20.1-final...krb5-1.20.2-finalPatch
https://github.com/krb5/krb5/compare/krb5-1.21-final...krb5-1.21.1-finalPatch
https://lists.debian.org/debian-lts-announce/2023/10/msg00031.htmlMailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20230908-0004/Third Party Advisory
https://web.mit.edu/kerberos/www/advisories/Product
https://github.com/krb5/krb5/commit/ef08b09c9459551aabbe7924fb176f1583053cddPatch
https://github.com/krb5/krb5/compare/krb5-1.20.1-final...krb5-1.20.2-finalPatch
https://github.com/krb5/krb5/compare/krb5-1.21-final...krb5-1.21.1-finalPatch
https://lists.debian.org/debian-lts-announce/2023/10/msg00031.htmlMailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20230908-0004/Third Party Advisory
https://web.mit.edu/kerberos/www/advisories/Product

Timeline

Published: Aug 7, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-36054?

How severe is CVE-2023-36054?

CVE-2023-36054 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 2.11% probability of exploitation in the next 30 days.

How do I fix CVE-2023-36054?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-36054?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST