The remote Ubuntu 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6143-1 advisory.

    Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially     crafted website, an attacker could potentially exploit these to cause a denial of service, obtain     sensitive information across domains, or execute arbitrary code. (CVE-2023-34414, CVE-2023-34416,     CVE-2023-34417)

    Jun Kokatsu discovered that Firefox did not properly validate site-isolated process for a document loaded     from a data: URL that was the result of a redirect, leading to an open redirect attack. An attacker could     possibly use this issue to perform phishing attacks. (CVE-2023-34415)

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.

Detections

Analytics

Ubuntu 20.04 LTS : Firefox vulnerabilities (USN-6143-1)

critical Nessus Plugin ID 176886

Version 1.4

Version 1.3

Version 1.2

Version 1.1

Version 1.0

Version 1.4 Aug 28, 2024, 7:43 PM CVSS metrics ("Cvssv4 score" set to 0.0) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Detection (updated detection logic) Plugin metadata Plugin Feed: 202408281943
Version 1.3 Jul 7, 2023, 2:20 PM CVSSv3 score source (set to "CVE-2023-34417") CVSSv2 score source (changed from "CVE-2023-34415" to "CVE-2023-34417") CVSSv2 severity (based on CVE-2023-34417, severity increased from "Medium" to "High") CVSSv3 severity (based on CVE-2023-34417, severity increased from "Medium" to "High") CVSS metrics ("CVSSv2 score" changed from 5.8 to 10.0. "CVSSv2 vector" changed from "CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N" to "CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C". "CVSSv3 vector" changed from "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N" to "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H". "CVSSv3 score" changed from 6.1 to 9.8) Plugin Feed: 202307071420
Version 1.2 Jul 6, 2023, 4:17 PM IAVM reference Plugin Feed: 202307061617
Version 1.1 Jun 9, 2023, 9:01 AM STIG Severity (set to "I") IAVM reference Plugin Feed: 202306090901
Version 1.0 Jun 7, 2023, 8:07 PM New Plugin Feed: 202306072007