RHEL 8 : firefox (RHSA-2021:3756)

critical Nessus Plugin ID 154023
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote Red Hat host is missing one or more security updates.

Description

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2021:3756 advisory.

- rust-crossbeam-deque: race condition may lead to double free (CVE-2021-32810)

- Mozilla: Use-after-free in MessageTask (CVE-2021-38496)

- Mozilla: Validation message could have been overlaid on another origin (CVE-2021-38497)

- Mozilla: Use-after-free of nsLanguageAtomService object (CVE-2021-38498)

- Mozilla: Memory safety bugs fixed in Firefox 93, Firefox ESR 78.15, and Firefox ESR 91.2 (CVE-2021-38500)

- Mozilla: Memory safety bugs fixed in Firefox 93 and Firefox ESR 91.2 (CVE-2021-38501)

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

Solution

Update the affected firefox package.

See Also

https://cwe.mitre.org/data/definitions/119.html

https://cwe.mitre.org/data/definitions/120.html

https://cwe.mitre.org/data/definitions/416.html

https://cwe.mitre.org/data/definitions/1021.html

https://access.redhat.com/security/cve/CVE-2021-32810

https://access.redhat.com/security/cve/CVE-2021-38496

https://access.redhat.com/security/cve/CVE-2021-38497

https://access.redhat.com/security/cve/CVE-2021-38498

https://access.redhat.com/security/cve/CVE-2021-38500

https://access.redhat.com/security/cve/CVE-2021-38501

https://access.redhat.com/errata/RHSA-2021:3756

https://bugzilla.redhat.com/1990342

https://bugzilla.redhat.com/2011097

https://bugzilla.redhat.com/2011098

https://bugzilla.redhat.com/2011099

https://bugzilla.redhat.com/2011100

https://bugzilla.redhat.com/2011101

Plugin Details

Severity: Critical

ID: 154023

File Name: redhat-RHSA-2021-3756.nasl

Version: 1.3

Type: local

Agent: unix

Published: 10/12/2021

Updated: 10/15/2021

Dependencies: ssh_get_info.nasl, redhat_repos.nasl

Risk Information

CVSS Score Source: CVE-2021-32810

VPR

Risk Factor: High

Score: 8.4

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

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

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: cpe:/o:redhat:rhel_aus:8.2, cpe:/o:redhat:rhel_e4s:8.2, cpe:/o:redhat:rhel_eus:8.2, cpe:/o:redhat:rhel_tus:8.2, p-cpe:/a:redhat:enterprise_linux:firefox

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 10/11/2021

Vulnerability Publication Date: 8/2/2021

Reference Information

CVE: CVE-2021-32810, CVE-2021-38496, CVE-2021-38497, CVE-2021-38498, CVE-2021-38500, CVE-2021-38501

RHSA: 2021:3756

IAVA: 2021-A-0450, 2021-A-0461

CWE: 119, 120, 416, 1021