Debian DSA-4795-1 : krb5 - security update

high Nessus Plugin ID 143194

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Synopsis

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

Description

Demi Obeneour discovered that unbounded recursion in the ASN1 parser of libkrb5 could result in denial of service.

Solution

Upgrade the krb5 packages.

For the stable distribution (buster), this problem has been fixed in version 1.17-3+deb10u1.

Plugin Details

Severity: High

ID: 143194

File Name: debian_DSA-4795.nasl

Version: 1.4

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 11/23/2020

Updated: 12/6/2022

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

Temporal Score: 3.7

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

CVSS Score Source: CVE-2020-28196

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:krb5

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/21/2020

Vulnerability Publication Date: 11/6/2020

Reference Information

CVE: CVE-2020-28196

DSA: 4795

Detections

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