Double Free Affecting krb5-workstation package, versions <0:1.21.1-1.el9
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Test your applications- Snyk ID SNYK-ALMALINUX9-KRB5WORKSTATION-6060409
- published 15 Nov 2023
- disclosed 7 Nov 2023
Introduced: 7 Nov 2023
CVE-2023-39975 Open this link in a new tabHow to fix?
Upgrade AlmaLinux:9 krb5-workstation 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-workstation package and not the krb5-workstation package as distributed by AlmaLinux.
See How to fix? for AlmaLinux:9 relevant fixed versions and status.
kdc/do_tgs_req.c in MIT Kerberos 5 (aka krb5) 1.21 before 1.21.2 has a double free that is reachable if an authenticated user can trigger an authorization-data handling failure. Incorrect data is copied from one ticket to another.
References
- https://errata.almalinux.org/9/ALSA-2023-6699.html
- https://access.redhat.com/security/cve/CVE-2023-39975
- https://access.redhat.com/errata/RHSA-2023:6699
- https://github.com/krb5/krb5/commit/88a1701b423c13991a8064feeb26952d3641d840
- https://github.com/krb5/krb5/compare/krb5-1.21.1-final...krb5-1.21.2-final
- https://security.netapp.com/advisory/ntap-20230915-0014/
- https://security.netapp.com/advisory/ntap-20240201-0005/
- https://security.netapp.com/advisory/ntap-20240201-0008/
- https://web.mit.edu/kerberos/www/advisories/