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.

Vulnerability/
CVE-2018-5709

high

7.5

CWE

190

16/1/2018

5/8/2024

CVE-2018-5709: Integer Overflow

First published: Tue Jan 16 2018(Updated: )

An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. There is a variable "dbentry->n_key_data" 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.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
MIT Kerberos	<=5-1.16

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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.

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