Ubuntu 16.04 LTS / 18.04 LTS / 19.10 : libxml2 vulnerabilities (USN-4274-1)

Medium Nessus Plugin ID 133646

Synopsis

The remote Ubuntu host is missing one or more security-related patches.

Description

It was discovered that libxml2 incorrectly handled certain XML files.
An attacker could possibly use this issue to cause a denial of service. (CVE-2019-19956, CVE-2020-7595).

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

Solution

Update the affected libxml2 and / or libxml2-utils packages.

See Also

https://usn.ubuntu.com/4274-1/

Plugin Details

Severity: Medium

ID: 133646

File Name: ubuntu_USN-4274-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2020/02/12

Updated: 2020/02/14

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 5

Temporal Score: 3.7

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

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:canonical:ubuntu_linux:libxml2, p-cpe:/a:canonical:ubuntu_linux:libxml2-utils, cpe:/o:canonical:ubuntu_linux:14.04, cpe:/o:canonical:ubuntu_linux:16.04, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:19.10

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2020/02/10

Vulnerability Publication Date: 2019/12/24

Reference Information

CVE: CVE-2019-19956, CVE-2020-7595

USN: 4274-1