VulnerabilityModified
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 user can trigger an authorization-data handling failure.
HIGH 8.8EPSS 1.47%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.47%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.47% probability · 72th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-415
- Affected
- mit/kerberos 5
- Source
- cve@mitre.org
References
- 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
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.