CVE-2017-7562
Public on 2018-05-10
Modified on 2018-09-06
Description
An authentication bypass flaw was found in the way krb5's certauth interface handled the validation of client certificates. A remote attacker able to communicate with the KDC could potentially use this flaw to impersonate arbitrary principals under rare and erroneous circumstances.
Severity
Medium
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | krb5 | 2018-09-05 | ALAS-2018-1010 | Fixed |
| Amazon Linux 2 - Core | krb5 | 2018-05-10 | ALAS2-2018-1010 | Fixed |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 6.5 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
| NVD | CVSSv2 | 4.0 | AV:N/AC:L/Au:S/C:N/I:P/A:N |
| NVD | CVSSv3 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |