CVE-2018-5709: Integer Overflow
An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. There is a variable "dbentry->nkeydata" in kadmin/dbutil/dump.c that can store 16-bit data but unknowingly the developer has assigned a "u4" variable to it, which is for 32-bit data. An attacker can use this vulnerability to affect other artifacts of the database as we know that a Kerberos database dump file contains trusted data.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2018-5709?
CVE-2018-5709 is a vulnerability in MIT Kerberos 5 that allows an attacker to exploit an integer overflow issue in the kadmin server.
How does CVE-2018-5709 affect MIT Kerberos 5?
CVE-2018-5709 affects MIT Kerberos 5 versions up to and including 1.16.
What is the severity of CVE-2018-5709?
The severity of CVE-2018-5709 is high, with a severity score of 7.5.
What is the CWE ID for CVE-2018-5709?
CVE-2018-5709 has a CWE ID of 190, which is an integer overflow vulnerability.
How can I fix CVE-2018-5709?
To fix CVE-2018-5709, it is recommended to update to a version of MIT Kerberos 5 that is not affected by this vulnerability.