Executive Summary

Summary
Title heimdal security update
Informations
Name DSA-4055 First vendor Publication 2017-12-07
Vendor Debian Last vendor Modification 2017-12-07
Severity (Vendor) N/A Revision 1

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Michael Eder and Thomas Kittel discovered that Heimdal, an implementation of Kerberos 5 that aims to be compatible with MIT Kerberos, did not correctly handle ASN.1 data. This would allow an unauthenticated remote attacker to cause a denial of service (crash of the KDC daemon) by sending maliciously crafted packets.

For the stable distribution (stretch), this problem has been fixed in version 7.1.0+dfsg-13+deb9u2.

We recommend that you upgrade your heimdal packages.

For the detailed security status of heimdal please refer to its security tracker page at: https://security-tracker.debian.org/tracker/heimdal

Original Source

Url : http://www.debian.org/security/2017/dsa-4055

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-476 NULL Pointer Dereference

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 1

Snort® IPS/IDS

Date Description
2019-10-08 Heimdal KDC malformed as-req denial of service attempt
RuleID : 51400 - Revision : 1 - Type : SERVER-OTHER

Nessus® Vulnerability Scanner

Date Description
2018-01-15 Name : The remote Fedora host is missing a security update.
File : fedora_2017-f0e5ad250c.nasl - Type : ACT_GATHER_INFO
2018-01-10 Name : The remote Fedora host is missing a security update.
File : fedora_2017-2962e58478.nasl - Type : ACT_GATHER_INFO
2017-12-14 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2017-1364.nasl - Type : ACT_GATHER_INFO
2017-12-08 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-4055.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
Date Informations
2017-12-23 00:23:20
  • Multiple Updates
2017-12-09 13:24:14
  • Multiple Updates
2017-12-07 13:21:29
  • First insertion