Integer Overflow or Wraparound Affecting krb5-pkinit package, versions <0:1.19.1-24.0.1.el9_1



    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High
Expand this section
8.8 high
Expand this section
Red Hat
8.8 high
Expand this section
6.4 medium

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
  • published 29 Nov 2022
  • disclosed 25 Dec 2022

How to fix?

Upgrade Oracle:9 krb5-pkinit to version 0:1.19.1-24.0.1.el9_1 or higher.
This issue was patched in ELSA-2022-8637.

NVD Description

Note: Versions mentioned in the description apply to the upstream krb5-pkinit package. See How to fix? for Oracle:9 relevant versions.

PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may lead to remote code execution (in KDC, kadmind, or a GSS or Kerberos application server) on 32-bit platforms (which have a resultant heap-based buffer overflow), and cause a denial of service on other platforms. This occurs in krb5_pac_parse in lib/krb5/krb/pac.c. Heimdal before 7.7.1 has "a similar bug."