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Vulnerability record · CVE-2023-36054 · published 7 August 2023

CVE-2023-36054: Mit kerberos 5 vulnerability

Mit · Kerberos 5

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.

6.5 CVSS 3.1 Medium EPSS 2.8% · top 13.9% CWE-824 · CWE-824
6.5CVSS 3.1 base score
2.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
7Affected product versions listed by NVD
12References
17 Jun 2026Last modified by NVD

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.

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

Affected products

7 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/krb5/krb5/commit/ef08b09c9459551aabbe7924fb176f1583053cdd Patch
https://github.com/krb5/krb5/compare/krb5-1.20.1-final...krb5-1.20.2-final Patch
https://github.com/krb5/krb5/compare/krb5-1.21-final...krb5-1.21.1-final Patch
https://lists.debian.org/debian-lts-announce/2023/10/msg00031.html Mailing ListThird 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/ef08b09c9459551aabbe7924fb176f1583053cdd Patch
https://github.com/krb5/krb5/compare/krb5-1.20.1-final...krb5-1.20.2-final Patch
https://github.com/krb5/krb5/compare/krb5-1.21-final...krb5-1.21.1-final Patch
https://lists.debian.org/debian-lts-announce/2023/10/msg00031.html Mailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20230908-0004/ Third Party Advisory
https://web.mit.edu/kerberos/www/advisories/ Product

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Source: NIST National Vulnerability Database (record CVE-2023-36054), CISA KEV, FIRST EPSS (scores of 2026-10-06). This page is refreshed as NVD updates the record.