CVE-2023-36054

MEDIUM EPSS 79.4%
Published Aug 7, 20232y ago · Modified Jun 17, 20262w ago
6.5 CVSS 3.1
Medium
Find Similar
Published Aug 7, 2023 2y ago
Last Modified Jun 17, 2026 2w ago

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 Details

Base Score
6.5
Exploitability
2.8
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
79.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-824

Affected Products 9

VendorProductVersionRange
mitkerberos_5* <1.20.2
mitkerberos_51.21any
mitkerberos_51.21any
debiandebian_linux10.0any
netappactive_iq_unified_manager*any
netappclustered_data_ontap9.0any
netapphci*any
netappmanagement_services_for_element_software*any
netappontap_tools*any

References 6

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

Remediation

  • github.com https://github.com/krb5/krb5/commit/ef08b09c9459551aabbe7924fb176f1583053cdd
    Patch
  • github.com https://github.com/krb5/krb5/compare/krb5-1.20.1-final...krb5-1.20.2-final
    Patch
  • github.com https://github.com/krb5/krb5/compare/krb5-1.21-final...krb5-1.21.1-final
    Patch