Homepage
About Snyk

Integer Overflow or Wraparound Affecting krb5 package, versions *

low

Snyk CVSS

    Attack Complexity Low
    Integrity High
Expand this section
NVD
7.5 high

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-DEBIAN11-KRB5-524883
  • published 16 Jan 2018
  • disclosed 16 Jan 2018
Report a new vulnerability Found a mistake?

Introduced: 16 Jan 2018

CVE-2018-5709 Open this link in a new tab
CWE-190 Open this link in a new tab

How to fix?

There is no fixed version for Debian:11 krb5.

NVD Description

Note: Versions mentioned in the description apply only to the upstream krb5 package and not the krb5 package as distributed by Debian:11. See How to fix? for Debian:11 relevant fixed versions and status.

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.