8.2 High
AI Score
Confidence
High
9.3 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
0.134 Low
EPSS
Percentile
95.4%
The kdc_handle_protected_negotiation function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8.x, 1.9.x before 1.9.5, and 1.10.x before 1.10.3 attempts to calculate a checksum before verifying that the key type is appropriate for a checksum, which allows remote attackers to execute arbitrary code or cause a denial of service (uninitialized pointer free, heap memory corruption, and daemon crash) via a crafted AS-REQ request.
CPE | Name | Operator | Version |
---|---|---|---|
kerberos_5 | eq | 1.8 | |
kerberos_5 | eq | 1.8.1 | |
kerberos_5 | eq | 1.8.2 | |
kerberos_5 | eq | 1.8.3 | |
kerberos_5 | eq | 1.8.4 | |
kerberos_5 | eq | 1.8.5 | |
kerberos_5 | eq | 1.8.6 | |
kerberos_5 | eq | 1.9.4 | |
kerberos_5 | eq | 1.10 | |
kerberos_5 | eq | 1.10.1 |