Debian DSA-4055-1 : heimdal - security update

high Nessus Plugin ID 105087

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Synopsis

The remote Debian host is missing a security-related update.

Description

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.

Solution

Upgrade the heimdal packages.

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

Plugin Details

Severity: High

ID: 105087

File Name: debian_DSA-4055.nasl

Version: 3.6

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 12/8/2017

Updated: 1/4/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS v3

Risk Factor: High

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:9.0, p-cpe:/a:debian:debian_linux:heimdal

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Patch Publication Date: 12/7/2017

Reference Information

CVE: CVE-2017-17439

DSA: 4055

Detections

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