Denial of Service Vulnerability in MIT Kerberos 5 Software
CVE-2016-3120

6.5MEDIUM

Key Information:

Vendor

Mit

Status
Kerberos 5
Vendor
CVE Published:
1 August 2016

What is CVE-2016-3120?

The validate_as_request function in the Key Distribution Center (KDC) for MIT Kerberos 5 versions prior to 1.13.6 and 1.4.x before 1.14.3 is susceptible to a denial of service attack. When the restrict_anonymous_to_tgt feature is enabled, an incorrect client data structure is utilized, which permits remote authenticated users to exploit this issue. This exploitation can lead to a NULL pointer dereference, crashing the daemon and disrupting the service.

References

https://github.com/krb5/krb5/commit/93b4a6306a0026cf1cc31...
x_refsource_CONFIRM
http://www.securityfocus.com/bid/92132
vdb-entryx_refsource_BID
https://lists.debian.org/debian-lts-announce/2018/01/msg0...
mailing-listx_refsource_MLIST

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.