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.

Related CPE's

a

mit

kerberos_5

Vulnerable

References

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

Patch

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

Patch

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

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

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

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

Vendor Advisory

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

Patch

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

Patch

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

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

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

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

Vendor Advisory

Weaknesses

[email protected]

Primary
CWE-415

134c704f-9b21-4f2e-91b3-4a467353bcc0

Secondary
CWE-415

CVSS impact metrics

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

8.8 · High

Information

Source identifier

[email protected]

Vulnerability status

Modified

Published

2023-08-16T15:15:11.277Z

3 years ago

Last modified

2026-06-17T06:13:04.253Z

3 months ago