RHEL 8 : firefox (RHSA-2021:0285)

high Nessus Plugin ID 145503

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-2021:0285 advisory.

- Mozilla: HTTPS pages could have been intercepted by a registered service worker when they should not have been (CVE-2020-26976)

- Mozilla: Cross-origin information leakage via redirected PDF requests (CVE-2021-23953)

- Mozilla: Type confusion when using logical assignment operators in JavaScript switch statements (CVE-2021-23954)

- Mozilla: Use-after-poison for incorrectly redeclared JavaScript variables during GC (CVE-2021-23960)

- Mozilla: Memory safety bugs fixed in Firefox 85 and Firefox ESR 78.7 (CVE-2021-23964)

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 firefox package.

See Also

https://access.redhat.com/security/cve/CVE-2020-26976

https://access.redhat.com/security/cve/CVE-2021-23953

https://access.redhat.com/security/cve/CVE-2021-23954

https://access.redhat.com/security/cve/CVE-2021-23960

https://access.redhat.com/security/cve/CVE-2021-23964

https://access.redhat.com/errata/RHSA-2021:0285

https://bugzilla.redhat.com/1920646

https://bugzilla.redhat.com/1920648

https://bugzilla.redhat.com/1920649

https://bugzilla.redhat.com/1920650

https://bugzilla.redhat.com/1920651

Plugin Details

Severity: High

ID: 145503

File Name: redhat-RHSA-2021-0285.nasl

Version: 1.12

Type: local

Agent: unix

Published: 1/27/2021

Updated: 1/23/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

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 Score Source: CVE-2021-23960

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

Vulnerability Information

CPE: cpe:/o:redhat:rhel_e4s:8.1, cpe:/o:redhat:rhel_eus:8.1, 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: 1/27/2021

Vulnerability Publication Date: 1/7/2021

Reference Information

CVE: CVE-2020-26976, CVE-2021-23953, CVE-2021-23954, CVE-2021-23960, CVE-2021-23964

RHSA: 2021:0285

IAVA: 2020-A-0575-S, 2021-A-0051-S

CWE: 120, 200, 626, 829, 843