Vulnerability Monitor

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

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 7 products from mit, from debian, from netapp and 4 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2023, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2023-08-07T19:15:09.840

Last Modified

2024-11-21T08:09:15.227

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.5 (MEDIUM)

Weaknesses

Type: Primary
CWE-824

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	mit	kerberos_5	< 1.20.2	Yes
Application	mit	kerberos_5	1.21	Yes
Application	mit	kerberos_5	1.21	Yes
Operating System	debian	debian_linux	10.0	Yes
Application	netapp	active_iq_unified_manager	-	Yes
Application	netapp	clustered_data_ontap	9.0	Yes
Application	netapp	hci	-	Yes
Application	netapp	management_services_for_element_software	-	Yes
Application	netapp	ontap_tools	-	Yes

References

https://github.com/krb5/krb5/commit/ef08b09c9459551aabbe7924fb176f1583053cdd Patch ([email protected])
https://github.com/krb5/krb5/compare/krb5-1.20.1-final...krb5-1.20.2-final Patch ([email protected])
https://github.com/krb5/krb5/compare/krb5-1.21-final...krb5-1.21.1-final Patch ([email protected])
https://lists.debian.org/debian-lts-announce/2023/10/msg00031.html Mailing List, Third Party Advisory ([email protected])
https://security.netapp.com/advisory/ntap-20230908-0004/ Third Party Advisory ([email protected])
https://web.mit.edu/kerberos/www/advisories/ Product ([email protected])
https://github.com/krb5/krb5/commit/ef08b09c9459551aabbe7924fb176f1583053cdd Patch (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/krb5/krb5/compare/krb5-1.20.1-final...krb5-1.20.2-final Patch (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/krb5/krb5/compare/krb5-1.21-final...krb5-1.21.1-final Patch (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2023/10/msg00031.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20230908-0004/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://web.mit.edu/kerberos/www/advisories/ Product (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For mit's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.