CVE Catalog

CVE-2023-39975

HighCVSS 8.8
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Elevated risk
1.23%

65th percentile - higher than 65% of all known CVEs

Summary

In MIT Kerberos 5 (krb5) version 1.21 before 1.21.2, there is a double free vulnerability that can be triggered by an authenticated user if an authorization-data handling failure occurs. Incorrect data is copied from one ticket to another.

Risk Assessment

The double free can lead to unpredictable application behavior, posing risks to system integrity and availability. This may allow potential attackers to exploit the vulnerability to gain control over the system.

Recommendation

It is recommended to upgrade to version 1.21.2 or later to mitigate this vulnerability. Additionally, monitor system logs for potential exploitation attempts.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS