Debian DSA-4472-1 : expat - security update

high Nessus Plugin ID 126351

Synopsis

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

Description

It was discovered that Expat, an XML parsing C library, did not properly handled XML input including XML names that contain a large number of colons, potentially resulting in denial of service.

Solution

Upgrade the expat packages.

For the stable distribution (stretch), this problem has been fixed in version 2.2.0-2+deb9u2.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=931031

https://security-tracker.debian.org/tracker/source-package/expat

https://packages.debian.org/source/stretch/expat

https://www.debian.org/security/2019/dsa-4472

Plugin Details

Severity: High

ID: 126351

File Name: debian_DSA-4472.nasl

Version: 1.4

Type: local

Agent: unix

Published: 7/1/2019

Updated: 12/6/2022

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

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: p-cpe:/a:debian:debian_linux:expat, cpe:/o:debian:debian_linux:9.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/28/2019

Vulnerability Publication Date: 6/24/2019

Reference Information

CVE: CVE-2018-20843

DSA: 4472