CVE-2023-39975

8.8 HIGH

Published: August 16, 2023 Modified: February 25, 2026

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.

AI Explanation

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://github.com/krb5/krb5/commit/88a1701b423c13991a8064feeb26952d3641d840

Source: cve@mitre.org

Patch

https://github.com/krb5/krb5/compare/krb5-1.21.1-final...krb5-1.21.2-final

Source: cve@mitre.org

Patch

https://security.netapp.com/advisory/ntap-20230915-0014/

Source: cve@mitre.org

https://security.netapp.com/advisory/ntap-20240201-0005/

Source: cve@mitre.org

https://security.netapp.com/advisory/ntap-20240201-0008/

Source: cve@mitre.org

https://web.mit.edu/kerberos/www/advisories/

Source: cve@mitre.org

Vendor Advisory

https://github.com/krb5/krb5/commit/88a1701b423c13991a8064feeb26952d3641d840