CVE-2023-39975

HIGH

MIT Kerberos 5 1.21-<1.21.2 - Authenticated Double Free in Authorization-Data Handling

Title source: llm
STIX 2.1

Description

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 (6)

Core 6

Scores

CVSS v3 8.8
EPSS 0.0123
EPSS Percentile 79.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-415
Status published
Products (1)
mit/kerberos_5 1.21 - 1.21.2
Published Aug 16, 2023
Tracked Since Feb 18, 2026