The policy RPC stubs in kadmin/server/server_stubs.c in MIT Kerberos 5 (aka krb5) 1.5.3 and later...
Fix status by distribution
Records published by each distribution for this CVE. Fixed versions differ by release; check each link.
- Alpine Linux ALPINE-CVE-2026-112318 krb5 Fix available
- BellSoft Alpaquita BELL-CVE-2026-112318 krb5 Fix available
- Debian DEBIAN-CVE-2026-112318 krb5 No fixed version in this record
- Ubuntu UBUNTU-CVE-2026-112318 krb5 No fixed version in this record
Original description The description as published by the source.
The policy RPC stubs in kadmin/server/server_stubs.c in MIT Kerberos 5 (aka krb5) 1.5.3 and later do not reject a NULL policy name decoded by xdr_nullstring(), which allows remote authenticated users to cause a denial of service (kadmind crash via NULL pointer dereference) by sending a policy request with an empty policy name that reaches authorization checks or logging code.
Source: CVE.org (CVE Program・cvelistV5) NVD GitHub Advisory
References
- web secalert@redhat.com
- web secalert@redhat.com
- web nvd.nist.gov
- web github.com
- web secalert@redhat.com
- web secalert@redhat.com
- web secalert@redhat.com
- web secalert@redhat.com