6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:N/I:N/A:C
0.01 Low
EPSS
Percentile
83.7%
The kg_accept_krb5 function in krb5/accept_sec_context.c in the GSS-API library in MIT Kerberos 5 (aka krb5) through 1.7.1 and 1.8 before 1.8.2, as used in kadmind and other applications, does not properly check for invalid GSS-API tokens, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an AP-REQ message in which the authenticatorโs checksum field is missing.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | heimdal | <ย 1.4.0~git20100605.dfsg.1-1 | heimdal_1.4.0~git20100605.dfsg.1-1_all.deb |
Debian | 11 | all | heimdal | <ย 1.4.0~git20100605.dfsg.1-1 | heimdal_1.4.0~git20100605.dfsg.1-1_all.deb |
Debian | 999 | all | heimdal | <ย 1.4.0~git20100605.dfsg.1-1 | heimdal_1.4.0~git20100605.dfsg.1-1_all.deb |
Debian | 13 | all | heimdal | <ย 1.4.0~git20100605.dfsg.1-1 | heimdal_1.4.0~git20100605.dfsg.1-1_all.deb |
Debian | 12 | all | krb5 | <ย 1.8.1+dfsg-3 | krb5_1.8.1+dfsg-3_all.deb |
Debian | 11 | all | krb5 | <ย 1.8.1+dfsg-3 | krb5_1.8.1+dfsg-3_all.deb |
Debian | 999 | all | krb5 | <ย 1.8.1+dfsg-3 | krb5_1.8.1+dfsg-3_all.deb |
Debian | 13 | all | krb5 | <ย 1.8.1+dfsg-3 | krb5_1.8.1+dfsg-3_all.deb |