Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS : Dompdf vulnerabilities (USN-6277-1)

critical Nessus Plugin ID 179459

Synopsis

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

Description

The remote Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6277-1 advisory.

It was discovered that Dompdf was not properly validating untrusted input when processing HTML content under certain circumstances. An attacker could possibly use this issue to expose sensitive information or execute arbitrary code. This issue only affected Ubuntu 16.04 LTS. (CVE-2014-5011, CVE-2014-5012, CVE-2014-5013)

It was discovered that Dompdf was not properly validating processed HTML content that referenced PHAR files, which could result in the deserialization of untrusted data. An attacker could possibly use this issue to execute arbitrary code. (CVE-2021-3838)

It was discovered that Dompdf was not properly validating processed HTML content that referenced both a remote base and a local file, which could result in the bypass of a chroot check. An attacker could possibly use this issue to expose sensitive information. (CVE-2022-2400)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected php-dompdf package.

See Also

https://ubuntu.com/security/notices/USN-6277-1

Plugin Details

Severity: Critical

ID: 179459

File Name: ubuntu_USN-6277-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 8/8/2023

Updated: 11/20/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2014-5013

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

CVSS Score Source: CVE-2021-3838

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:18.04:-:esm, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:16.04:-:esm, p-cpe:/a:canonical:ubuntu_linux:php-dompdf

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/8/2023

Vulnerability Publication Date: 1/10/2020

Reference Information

CVE: CVE-2014-5011, CVE-2014-5012, CVE-2014-5013, CVE-2021-3838, CVE-2022-2400

USN: 6277-1