Double Free Vulnerability in MIT Kerberos 5 Affects Multiple Deployments
CVE-2023-39975

8.8HIGH

Key Information:

Vendor

Mit

Status
Kerberos 5
Vendor
CVE Published:
16 August 2023

What is CVE-2023-39975?

MIT Kerberos 5 (krb5) version 1.21 prior to 1.21.2 contains a double free vulnerability in the kdc/do_tgs_req.c file. An authenticated user can exploit this flaw by triggering an authorization-data handling failure, leading to incorrect data being copied from one ticket to another. This vulnerability may expose systems to further attacks if not addressed. Proper security measures and updates are recommended to mitigate the risk associated with this issue.

References

https://web.mit.edu/kerberos/www/advisories/
https://github.com/krb5/krb5/compare/krb5-1.21.1-final......
https://github.com/krb5/krb5/commit/88a1701b423c13991a806...

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.