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Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : CUPS vulnerabilities (USN-3713-1)

high Nessus Plugin ID 111041

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

It was discovered that CUPS incorrectly handled certain print jobs with invalid usernames. A remote attacker could possibly use this issue to cause CUPS to crash, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 17.10 and Ubuntu 18.04 LTS. (CVE-2017-18248)

Dan Bastone discovered that the CUPS dnssd backend incorrectly handled certain environment variables. A local attacker could possibly use this issue to escalate privileges. (CVE-2018-4180)

Eric Rafaloff and John Dunlap discovered that CUPS incorrectly handled certain include directives. A local attacker could possibly use this issue to read arbitrary files. (CVE-2018-4181)

Dan Bastone discovered that the CUPS AppArmor profile incorrectly confined the dnssd backend. A local attacker could possibly use this issue to escape confinement. (CVE-2018-6553).

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 packages.

See Also

https://ubuntu.com/security/notices/USN-3713-1

Plugin Details

Severity: High

ID: 111041

File Name: ubuntu_USN-3713-1.nasl

Version: 1.10

Type: local

Agent: unix

Published: 7/12/2018

Updated: 10/20/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.5

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.8

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

CVSS Score Source: CVE-2018-4181

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

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

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

CVSS Score Source: CVE-2018-6553

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:cups, p-cpe:/a:canonical:ubuntu_linux:cups-bsd, p-cpe:/a:canonical:ubuntu_linux:cups-client, p-cpe:/a:canonical:ubuntu_linux:cups-common, p-cpe:/a:canonical:ubuntu_linux:cups-core-drivers, p-cpe:/a:canonical:ubuntu_linux:cups-daemon, p-cpe:/a:canonical:ubuntu_linux:cups-ipp-utils, p-cpe:/a:canonical:ubuntu_linux:cups-ppdc, p-cpe:/a:canonical:ubuntu_linux:cups-server-common, p-cpe:/a:canonical:ubuntu_linux:libcups2, p-cpe:/a:canonical:ubuntu_linux:libcups2-dev, p-cpe:/a:canonical:ubuntu_linux:libcupscgi1, p-cpe:/a:canonical:ubuntu_linux:libcupscgi1-dev, p-cpe:/a:canonical:ubuntu_linux:libcupsimage2, p-cpe:/a:canonical:ubuntu_linux:libcupsimage2-dev, p-cpe:/a:canonical:ubuntu_linux:libcupsmime1, p-cpe:/a:canonical:ubuntu_linux:libcupsmime1-dev, p-cpe:/a:canonical:ubuntu_linux:libcupsppdc1, p-cpe:/a:canonical:ubuntu_linux:libcupsppdc1-dev, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, cpe:/o:canonical:ubuntu_linux:16.04:-:lts

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/11/2018

Vulnerability Publication Date: 3/26/2018

Reference Information

CVE: CVE-2017-18248, CVE-2018-4180, CVE-2018-4181, CVE-2018-6553

USN: 3713-1