Home/CVE/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
CVE

CVE-2023-39975

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

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.

HIGH · CVSS 8.8 EPSS 0.01226
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-415Double Free
CWE-415Double Free
▤

Affected Products & Versions

1
mit kerberos 5>= 1.21 and < 1.21.2
▣

Scoring & Timeline

8.8
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD16 Aug 2023 · 03:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

3
suse-csafopenSUSE-SU-2024:13527-1
rhsaRHSA-2023:6699Important
oracle-cpuoracle-cpu-MySQL-Cluster-8479--CVE-2023-39975
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/krb5/krb5/commit/88a1701b423c13991a8064feeb26952d3641d840Patch
https://github.com/krb5/krb5/compare/krb5-1.21.1-final...krb5-1.21.2-finalPatch
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
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