The version of Firefox installed on the remote Windows host is prior to 79.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-30 advisory.

  - Inappropriate implementation in WebRTC in Google Chrome     prior to 84.0.4147.89 allowed an attacker in a     privileged network position to potentially exploit heap     corruption via a crafted SCTP stream. (CVE-2020-6514)

  - Use after free in ANGLE in Google Chrome prior to     81.0.4044.122 allowed a remote attacker to potentially     exploit heap corruption via a crafted HTML page.
    (CVE-2020-6463)

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

The version of Firefox ESR installed on the remote Windows host is prior to 78.1. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-32 advisory.

  - Inappropriate implementation in WebRTC in Google Chrome     prior to 84.0.4147.89 allowed an attacker in a     privileged network position to potentially exploit heap     corruption via a crafted SCTP stream. (CVE-2020-6514)

  - Use after free in ANGLE in Google Chrome prior to     81.0.4044.122 allowed a remote attacker to potentially     exploit heap corruption via a crafted HTML page.
    (CVE-2020-6463)

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

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4443-1 advisory.

    Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially     crafted website, an attacker could potentially exploit these to cause a denial of service, obtain     sensitive information, bypass iframe sandbox restrictions, confuse the user, or execute arbitrary code.
    (CVE-2020-6463, CVE-2020-6514, CVE-2020-15652, CVE-2020-15653, CVE-2020-15654, CVE-2020-15656,     CVE-2020-15658, CVE-2020-15659)

    It was discovered that redirected HTTP requests which are observed or modified through a web extension     could bypass existing CORS checks. If a user were tricked in to installing a specially crafted extension,     an attacker could potentially exploit this to obtain sensitive information across origins.
    (CVE-2020-15655)

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.

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2020:3241 advisory.

    Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and     portability.

    This update upgrades Firefox to version 68.11.0 ESR.

    Security Fix(es):

    * chromium-browser: Use after free in ANGLE (CVE-2020-6463)

    * chromium-browser: Inappropriate implementation in WebRTC (CVE-2020-6514)

    * Mozilla: Potential leak of redirect targets when loading scripts in a worker (CVE-2020-15652)

    * Mozilla: Memory safety bugs fixed in Firefox 79 and Firefox ESR 68.11 (CVE-2020-15659)

    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.

Security Fix(es) :

  - chromium-browser: Use after free in ANGLE     (CVE-2020-6463)

  - chromium-browser: Inappropriate implementation in WebRTC     (CVE-2020-6514)

  - Mozilla: Potential leak of redirect targets when loading     scripts in a worker (CVE-2020-15652)

  - Mozilla: Memory safety bugs fixed in Firefox 79 and     Firefox ESR 68.11 (CVE-2020-15659)

Multiple security issues have been found in Thunderbird which could result in denial of service or potentially the execution of arbitrary code.

The version of Thunderbird installed on the remote Windows host is prior to 78.1. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-33 advisory.

  - Inappropriate implementation in WebRTC in Google Chrome     prior to 84.0.4147.89 allowed an attacker in a     privileged network position to potentially exploit heap     corruption via a crafted SCTP stream. (CVE-2020-6514)

  - Use after free in ANGLE in Google Chrome prior to     81.0.4044.122 allowed a remote attacker to potentially     exploit heap corruption via a crafted HTML page.
    (CVE-2020-6463)

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

The remote Redhat Enterprise Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2020:3344 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    This update upgrades Thunderbird to version 68.11.0.

    Security Fix(es):

    * chromium-browser: Use after free in ANGLE (CVE-2020-6463)

    * chromium-browser: Inappropriate implementation in WebRTC (CVE-2020-6514)

    * Mozilla: Potential leak of redirect targets when loading scripts in a worker (CVE-2020-15652)

    * Mozilla: Memory safety bugs fixed in Firefox 79 and Firefox ESR 68.11 (CVE-2020-15659)

    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.

The remote CentOS Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2020:3344 advisory.

  - By observing the stack trace for JavaScript errors in web workers, it was possible to leak the result of a     cross-origin redirect. This applied only to content that can be parsed as script. This vulnerability     affects Firefox < 79, Firefox ESR < 68.11, Firefox ESR < 78.1, Thunderbird < 68.11, and Thunderbird <     78.1. (CVE-2020-15652)

  - Mozilla developers and community members reported memory safety bugs present in Firefox 78 and Firefox ESR     78.0. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some     of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 79, Firefox     ESR < 68.11, Firefox ESR < 78.1, Thunderbird < 68.11, and Thunderbird < 78.1. (CVE-2020-15659)

  - Use after free in ANGLE in Google Chrome prior to 81.0.4044.122 allowed a remote attacker to potentially     exploit heap corruption via a crafted HTML page. (CVE-2020-6463)

  - Inappropriate implementation in WebRTC in Google Chrome prior to 84.0.4147.89 allowed an attacker in a     privileged network position to potentially exploit heap corruption via a crafted SCTP stream.
    (CVE-2020-6514)

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

The remote CentOS Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2020:3253 advisory.

  - By observing the stack trace for JavaScript errors in web workers, it was possible to leak the result of a     cross-origin redirect. This applied only to content that can be parsed as script. This vulnerability     affects Firefox < 79, Firefox ESR < 68.11, Firefox ESR < 78.1, Thunderbird < 68.11, and Thunderbird <     78.1. (CVE-2020-15652)

  - Mozilla developers and community members reported memory safety bugs present in Firefox 78 and Firefox ESR     78.0. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some     of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 79, Firefox     ESR < 68.11, Firefox ESR < 78.1, Thunderbird < 68.11, and Thunderbird < 78.1. (CVE-2020-15659)

  - Use after free in ANGLE in Google Chrome prior to 81.0.4044.122 allowed a remote attacker to potentially     exploit heap corruption via a crafted HTML page. (CVE-2020-6463)

  - Inappropriate implementation in WebRTC in Google Chrome prior to 84.0.4147.89 allowed an attacker in a     privileged network position to potentially exploit heap corruption via a crafted SCTP stream.
    (CVE-2020-6514)

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

The remote CentOS Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the CESA-2020:3341 advisory.

  - Mozilla: Potential leak of redirect targets when loading scripts in a worker (CVE-2020-15652)

  - Mozilla: Memory safety bugs fixed in Firefox 79 and Firefox ESR 68.11 (CVE-2020-15659)

  - chromium-browser: Use after free in ANGLE (CVE-2020-6463)

  - chromium-browser: Inappropriate implementation in WebRTC (CVE-2020-6514)

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

ID	Name	Product	Family	Published	Updated	Severity
139040	Mozilla Firefox < 79.0	Nessus	Windows	7/28/2020	2/28/2024	high
139074	Mozilla Firefox ESR < 78.1	Nessus	Windows	7/29/2020	2/28/2024	high
139182	Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : Firefox vulnerabilities (USN-4443-1)	Nessus	Ubuntu Local Security Checks	7/30/2020	8/27/2024	high
139186	RHEL 8 : firefox (RHSA-2020:3241)	Nessus	Red Hat Local Security Checks	7/30/2020	11/7/2024	high
139220	Scientific Linux Security Update : firefox on SL6.x i386/x86_64 (20200730)	Nessus	Scientific Linux Local Security Checks	7/31/2020	2/27/2024	high
139255	Debian DSA-4740-1 : thunderbird - security update	Nessus	Debian Local Security Checks	8/3/2020	2/27/2024	high
139300	Scientific Linux Security Update : firefox on SL7.x x86_64 (20200730)	Nessus	Scientific Linux Local Security Checks	8/4/2020	2/27/2024	high
139318	Mozilla Thunderbird < 78.1	Nessus	Windows	8/4/2020	2/27/2024	high
139334	RHEL 7 : thunderbird (RHSA-2020:3344)	Nessus	Red Hat Local Security Checks	8/6/2020	11/7/2024	high
139419	CentOS 7 : thunderbird (RHSA-2020:3344)	Nessus	CentOS Local Security Checks	8/7/2020	10/9/2024	high
139420	CentOS 7 : firefox (RHSA-2020:3253)	Nessus	CentOS Local Security Checks	8/7/2020	10/9/2024	high
145868	CentOS 8 : thunderbird (CESA-2020:3341)	Nessus	CentOS Local Security Checks	2/1/2021	1/24/2024	high

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