CVE-2023-39975

Summary

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.

Affected Software

Weaknesses

• n/a

ADP Enrichment

CVE Program Container

Additional References

• https://web.mit.edu/kerberos/www/advisories/
• https://github.com/krb5/krb5/compare/krb5-1.21.1-final…krb5-1.21.2-final
• https://github.com/krb5/krb5/commit/88a1701b423c13991a8064feeb26952d3641d840
• https://security.netapp.com/advisory/ntap-20230915-0014/
• https://security.netapp.com/advisory/ntap-20240201-0008/
• https://security.netapp.com/advisory/ntap-20240201-0005/

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: total

References

• https://web.mit.edu/kerberos/www/advisories/
• https://github.com/krb5/krb5/compare/krb5-1.21.1-final…krb5-1.21.2-final
• https://github.com/krb5/krb5/commit/88a1701b423c13991a8064feeb26952d3641d840
• https://security.netapp.com/advisory/ntap-20230915-0014/
• https://security.netapp.com/advisory/ntap-20240201-0008/
• https://security.netapp.com/advisory/ntap-20240201-0005/

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