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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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade krb5-libsUpgrade krb5-develUpgrade krb5-pkinitUpgrade krb5-workstationUpgrade libkadm5Upgrade krb5-serverUpgrade krb5-server-ldap | Nov 16, 2023 | Aug 16, 2023 |
| Amazon_linux_2023 | — | Upgrade krb5-libs-debuginfoUpgrade krb5-serverUpgrade libkadm5Upgrade krb5-libsUpgrade krb5-pkinitUpgrade libkadm5-debuginfoUpgrade krb5-workstationUpgrade krb5-server-debuginfoUpgrade krb5-develUpgrade krb5-pkinit-debuginfoUpgrade krb5-workstation-debuginfoUpgrade krb5-server-ldapUpgrade krb5-debugsourceUpgrade krb5-debuginfoUpgrade krb5-server-ldap-debuginfo | Feb 17, 2025 | Aug 16, 2023 |
| Centos_linux | — | Upgrade krb5-server-debuginfoUpgrade krb5-develUpgrade krb5-pkinitUpgrade krb5-serverUpgrade krb5-libs-debuginfoUpgrade krb5-workstationUpgrade libkadm5-debuginfoUpgrade libkadm5Upgrade krb5-libsUpgrade krb5-server-ldap-debuginfoUpgrade krb5-debugsourceUpgrade krb5-server-ldapUpgrade krb5-pkinit-debuginfoUpgrade krb5-workstation-debuginfoUpgrade krb5-debuginfo | Nov 8, 2023 | Aug 16, 2023 |
| Freebsd | — | Upgrade krb5-develUpgrade krb5Upgrade krb5-121 | Dec 10, 2025 | Aug 14, 2023 |
| Gentoo Linux | — | Upgrade app-crypt/mit-krb5. | May 6, 2024 | Aug 16, 2023 |
| Oracle Mysql | — | Upgrade to MySQL version 8.0.35Upgrade to MySQL version 8.2.0 | Jun 15, 2026 | Aug 16, 2023 |
| Oracle_linux | — | Upgrade krb5-develUpgrade libkadm5Upgrade krb5-pkinitUpgrade krb5-serverUpgrade krb5-workstationUpgrade krb5-server-ldapUpgrade krb5-libs | Nov 16, 2023 | Aug 16, 2023 |
| Redhat_linux | — | Upgrade krb5-debugsourceUpgrade krb5-serverUpgrade krb5-pkinit-debuginfoUpgrade krb5-server-ldapUpgrade krb5-libsUpgrade krb5-workstationUpgrade libkadm5-debuginfoUpgrade libkadm5Upgrade krb5-workstation-debuginfoUpgrade krb5-debuginfoUpgrade krb5-libs-debuginfoUpgrade krb5-server-ldap-debuginfoUpgrade krb5-pkinitUpgrade krb5-develUpgrade krb5-server-debuginfo | Nov 8, 2023 | Aug 16, 2023 |
| Rocky_linux | — | Upgrade krb5-develUpgrade krb5-pkinitUpgrade libkadm5-debuginfoUpgrade krb5-libs-debuginfoUpgrade krb5-libsUpgrade krb5-workstationUpgrade krb5-serverUpgrade libkadm5Upgrade krb5-server-debuginfoUpgrade krb5-pkinit-debuginfoUpgrade krb5-debuginfoUpgrade krb5-debugsourceUpgrade krb5-server-ldapUpgrade krb5-server-ldap-debuginfoUpgrade krb5-workstation-debuginfo | Jun 1, 2026 | May 28, 2026 |
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