Double free vulnerability in the prepare_error_as function in do_as_req.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.7 through 1.9, when the PKINIT feature is enabled, allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via an e_data field containing typed data.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade krb5 | Jul 30, 2024 | Mar 20, 2011 |
| Freebsd | — | Upgrade krb5 | Dec 10, 2025 | Apr 14, 2011 |
| Gentoo Linux | — | Upgrade app-crypt/mit-krb5. | Oct 30, 2017 | Mar 19, 2011 |
| Oracle Solaris | — | Upgrade consolidation/osnet/osnet-incorporation to version 0.5.11-0.175.2.0.0.42.2 on Solaris 11.2Upgrade system/security/kerberos-5 to version 0.5.11-0.175.1.11.0.3.2 on Solaris 11.1 | May 29, 2017 | Mar 19, 2011 |
| Oracle_linux | — | Upgrade krb5-pkinit-opensslUpgrade krb5-server-ldapUpgrade krb5-libsUpgrade krb5-develUpgrade krb5-serverUpgrade krb5-workstation | Oct 16, 2024 | Mar 20, 2011 |
| Suse | — | Upgrade krb5-plugin-preauth-spakeUpgrade krb5-plugin-preauth-pkinitUpgrade krb5-clientUpgrade krb5-32bitUpgrade krb5Upgrade krb5-docUpgrade krb5-serverUpgrade krb5-plugin-preauth-otpUpgrade krb5-plugin-kdb-ldapUpgrade krb5-devel | Feb 17, 2015 | Jun 28, 2013 |
| Ubuntu | — | Upgrade krb5-kdc | Nov 8, 2024 | Mar 20, 2011 |
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