vulnerability
FreeBSD: VID-a6986f0f-3ac0-11ee-9a88-206a8a720317 (CVE-2023-39975): krb5 -- Double-free in KDC TGS processing
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 9 | (AV:N/AC:L/Au:S/C:C/I:C/A:C) | Aug 14, 2023 | Dec 10, 2025 | Dec 10, 2025 |
Severity
9
CVSS
(AV:N/AC:L/Au:S/C:C/I:C/A:C)
Published
Aug 14, 2023
Added
Dec 10, 2025
Modified
Dec 10, 2025
Description
The MIT krb5 Team reports: When issuing a ticket for a TGS renew or validate request, copy only the server field from the outer part of the header ticket to the new ticket. Copying the whole structure causes the enc_part pointer to be aliased to the header ticket until krb5_encrypt_tkt_part() is called, resulting in a double-free if handle_authdata() fails..
Solutions
freebsd-upgrade-package-krb5freebsd-upgrade-package-krb5-121freebsd-upgrade-package-krb5-devel
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