Ubuntu 16.04 LTS / 18.04 LTS / 19.04 : CUPS vulnerabilities (USN-4105-1)

high Nessus Plugin ID 128031

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Synopsis

The remote Ubuntu host is missing a security-related patch.

Description

Stephan Zeisberg discovered that the CUPS SNMP backend incorrectly handled encoded ASN.1 inputs. A remote attacker could possibly use this issue to cause CUPS to crash by providing specially crafted network traffic. (CVE-2019-8696, CVE-2019-8675)

It was discovered that CUPS did not properly handle client disconnection events. A local attacker could possibly use this issue to cause a denial of service or disclose memory from the CUPS server.

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 cups package.

See Also

https://usn.ubuntu.com/4105-1/

Plugin Details

Severity: High

ID: 128031

File Name: ubuntu_USN-4105-1.nasl

Version: 1.7

Type: local

Agent: unix

Published: 8/20/2019

Updated: 1/12/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 4.8

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

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

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:cups, cpe:/o:canonical:ubuntu_linux:16.04, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:19.04

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/20/2019

Vulnerability Publication Date: 10/27/2020

Reference Information

CVE: CVE-2019-8675, CVE-2019-8696

USN: 4105-1