Access of Uninitialized Pointer Affecting krb5-server-ldap package, versions <0:1.21.1-1.el9
Threat Intelligence
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-ALMALINUX9-KRB5SERVERLDAP-6060394
- published 15 Nov 2023
- disclosed 7 Nov 2023
Introduced: 7 Nov 2023
CVE-2023-36054 Open this link in a new tabHow to fix?
Upgrade AlmaLinux:9 krb5-server-ldap to version 0:1.21.1-1.el9 or higher.
This issue was patched in ALSA-2023:6699.
NVD Description
Note: Versions mentioned in the description apply only to the upstream krb5-server-ldap package and not the krb5-server-ldap package as distributed by AlmaLinux.
See How to fix? for AlmaLinux:9 relevant fixed versions and status.
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.
References
- https://errata.almalinux.org/9/ALSA-2023-6699.html
- https://access.redhat.com/security/cve/CVE-2023-36054
- https://access.redhat.com/errata/RHSA-2023:6699
- https://github.com/krb5/krb5/commit/ef08b09c9459551aabbe7924fb176f1583053cdd
- https://github.com/krb5/krb5/compare/krb5-1.20.1-final...krb5-1.20.2-final
- https://github.com/krb5/krb5/compare/krb5-1.21-final...krb5-1.21.1-final
- https://lists.debian.org/debian-lts-announce/2023/10/msg00031.html
- https://security.netapp.com/advisory/ntap-20230908-0004/
- https://web.mit.edu/kerberos/www/advisories/