Detections
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RHEL 6 : firefox (RHSA-2020:1339)
high Nessus Plugin ID 135240
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Synopsis
The remote Red Hat host is missing one or more security updates for firefox.Description
The remote Redhat Enterprise Linux 6 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2020:1339 advisory.Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.
This update upgrades Firefox to version 68.6.1 ESR.
Security Fix(es):
* Mozilla: Use-after-free while running the nsDocShell destructor (CVE-2020-6819)
* Mozilla: Use-after-free when handling a ReadableStream (CVE-2020-6820)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 RHEL firefox package based on the guidance in RHSA-2020:1339.See Also
http://www.nessus.org/u?abd33c96
https://access.redhat.com/security/updates/classification/#critical
https://access.redhat.com/errata/RHSA-2020:1339
Plugin Details
Severity: High
ID: 135240
File Name: redhat-RHSA-2020-1339.nasl
Version: 1.17
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 4/7/2020
Updated: 11/7/2024
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus
Risk Information
VPR
Risk Factor: High
Score: 7.4
Vendor
Vendor Severity: Critical
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5.6
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS Score Source: CVE-2020-6820
CVSS v3
Risk Factor: High
Base Score: 8.1
Temporal Score: 7.5
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:firefox, cpe:/o:redhat:enterprise_linux:6
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 4/7/2020
Vulnerability Publication Date: 4/3/2020
CISA Known Exploited Vulnerability Due Dates: 5/3/2022
Reference Information
CVE: CVE-2020-6819, CVE-2020-6820