Rapid7 Vulnerability & Exploit Database

Red Hat: CVE-2016-3120: Low: krb5 security, bug fix, and enhancement update (RHSA-2016:2591)

Free InsightVM Trial No Credit Card Necessary
Watch Demo See how it all works
Back to Search

Red Hat: CVE-2016-3120: Low: krb5 security, bug fix, and enhancement update (RHSA-2016:2591)

Severity
4
CVSS
(AV:N/AC:L/Au:S/C:N/I:N/A:P)
Published
07/31/2016
Created
07/25/2018
Added
11/04/2016
Modified
01/17/2018

Description

The validate_as_request function in kdc_util.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.13.6 and 1.4.x before 1.14.3, when restrict_anonymous_to_tgt is enabled, uses an incorrect client data structure, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an S4U2Self request.

Solution(s)

  • redhat-upgrade-krb5-debuginfo
  • redhat-upgrade-krb5-devel
  • redhat-upgrade-krb5-libs
  • redhat-upgrade-krb5-pkinit
  • redhat-upgrade-krb5-server
  • redhat-upgrade-krb5-server-ldap
  • redhat-upgrade-krb5-workstation
  • redhat-upgrade-libkadm5

References

  • RHSA-2016:2591
  • 92132
  • 1036442
  • CVE-2016-3120

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
Free InsightVM Trial View All Features

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;