Debian DLA-1524-1 : libxml2 security update

Medium Nessus Plugin ID 117811

Synopsis

The remote Debian host is missing a security update.

Description

CVE-2018-14404 Fix of a NULL pointer dereference which might result in a crash and thus in a denial of service.

CVE-2018-14567 and CVE-2018-9251 Approvement in LZMA error handling which prevents an infinite loop.

CVE-2017-18258 Limit available memory to 100MB to avoid exhaustive memory consumption by malicious files.

For Debian 8 'Jessie', these problems have been fixed in version 2.9.1+dfsg1-5+deb8u7.

We recommend that you upgrade your libxml2 packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

See Also

https://lists.debian.org/debian-lts-announce/2018/09/msg00035.html

https://packages.debian.org/source/jessie/libxml2

Plugin Details

Severity: Medium

ID: 117811

File Name: debian_DLA-1524.nasl

Version: 1.1

Type: local

Agent: unix

Published: 2018/09/28

Modified: 2018/09/28

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 5

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

CVSS v3.0

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: p-cpe:/a:debian:debian_linux:libxml2, p-cpe:/a:debian:debian_linux:libxml2-dbg, p-cpe:/a:debian:debian_linux:libxml2-dev, p-cpe:/a:debian:debian_linux:libxml2-doc, p-cpe:/a:debian:debian_linux:libxml2-utils, p-cpe:/a:debian:debian_linux:libxml2-utils-dbg, p-cpe:/a:debian:debian_linux:python-libxml2, p-cpe:/a:debian:debian_linux:python-libxml2-dbg, cpe:/o:debian:debian_linux:8.0

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

Patch Publication Date: 2018/09/27

Reference Information

CVE: CVE-2017-18258, CVE-2018-14404, CVE-2018-14567, CVE-2018-9251