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CVE-2023-39975

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Date: August 16, 2023

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.

Language: C

Severity Score

Related Resources (8)

https://security.netapp.com/advisory/ntap-20230915-0014/
https://github.com/krb5/krb5/compare/krb5-1.21.1-final...krb5-1.21.2-final
https://nvd.nist.gov/vuln/detail/CVE-2023-39975
https://security.netapp.com/advisory/ntap-20240201-0005/
https://security.netapp.com/advisory/ntap-20240201-0008/
https://web.mit.edu/kerberos/www/advisories/
https://github.com/krb5/krb5/commit/88a1701b423c13991a8064feeb26952d3641d840
https://www.mend.io/vulnerability-database/CVE-2023-39975

Severity Score

Weakness Type (CWE)

Double Free

CWE-415

Top Fix

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Upgrade Version

Upgrade to version krb5-1.21.2-final

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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