Debian DLA-3062-1 : ublock-origin - LTS security update

high Nessus Plugin ID 162610

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Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 9 host has packages installed that are affected by a vulnerability as referenced in the dla-3062 advisory.

uBlock, a Firefox add-on and efficient ads, malware and trackers blocker, supported an arbitrary depth of parameter nesting for strict blocking, which allows crafted web sites to cause a denial of service (unbounded recursion that can trigger memory consumption and a loss of all blocking functionality). Please note that webext-ublock-origin was replaced by webext-ublock-originfirefox. For Debian 9 stretch, this problem has been fixed in version 1.42.0+dfsg-1~deb9u1. We recommend that you upgrade your ublock-origin packages. For the detailed security status of ublock-origin please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/ublock-origin Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at:
https://wiki.debian.org/LTS

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

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

Solution

Upgrade the ublock-origin packages.

For Debian 9 stretch, this problem has been fixed in version 1.42.0+dfsg-1~deb9u1.

Plugin Details

Severity: High

ID: 162610

File Name: debian_DLA-3062.nasl

Version: 1.4

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 6/29/2022

Updated: 1/24/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2021-36773

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:webext-ublock-origin-chromium, p-cpe:/a:debian:debian_linux:webext-ublock-origin-firefox, cpe:/o:debian:debian_linux:9.0, p-cpe:/a:debian:debian_linux:ublock-origin-doc, p-cpe:/a:debian:debian_linux:webext-ublock-origin

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/29/2022

Vulnerability Publication Date: 7/18/2021

Reference Information

CVE: CVE-2021-36773

Detections

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