The version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 45.8. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2017-07 advisory.

  - Mozilla developers and community members Boris Zbarsky, Christian Holler, Honza Bambas, Jon Coppeard,     Randell Jesup, Andr Bargull, Kan-Ru Chen, and Nathan Froyd reported memory safety bugs present in     Thunderbird 45.7. Some of these bugs showed evidence of memory corruption and we presume that with enough     effort that some of these could be exploited to run arbitrary code. (CVE-2017-5398)

  - Memory corruption resulting in a potentially exploitable crash during garbage collection of JavaScript due     errors in how incremental sweeping is managed for memory cleanup. (CVE-2017-5410)

  - JIT-spray targeting asm.js combined with a heap spray allows for a bypass of ASLR and DEP protections     leading to potential memory corruption attacks. (CVE-2017-5400)

  - A crash triggerable by web content in which an <code>ErrorResult</code> references unassigned memory due     to a logic error. The resulting crash may be exploitable. (CVE-2017-5401)

  - A use-after-free can occur when events are fired for a <code>FontFace</code> object after the object has     been already been destroyed while working with fonts. This results in a potentially exploitable crash.
    (CVE-2017-5402)

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

The version of Thunderbird installed on the remote Windows host is prior to 52.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2017-09 advisory.

  - Mozilla developers and community members Carsten Book, Calixte Denizet, Christian Holler, Andrew     McCreight, David Bolter, David Keeler, Jon Coppeard, Tyson Smith, Ronald Crane, Tooru Fujisawa, Ben Kelly,     Bob Owen, Jed Davis, Julian Seward, Julian Hector, Philipp, Markus Stange, and  Andr Bargull reported     memory safety bugs present in Firefox 51. Some of these bugs showed evidence of memory corruption and we     presume that with enough effort that some of these could be exploited to run arbitrary code.
    (CVE-2017-5399)

  - A segmentation fault can occur during some bidirectional layout operations. (CVE-2017-5413)

  - JIT-spray targeting asm.js combined with a heap spray allows for a bypass of ASLR and DEP protections     leading to potential memory corruption attacks. (CVE-2017-5400)

  - A crash triggerable by web content in which an <code>ErrorResult</code> references unassigned memory due     to a logic error. The resulting crash may be exploitable. (CVE-2017-5401)

  - A use-after-free can occur when events are fired for a <code>FontFace</code> object after the object has     been already been destroyed while working with fonts. This results in a potentially exploitable crash.
    (CVE-2017-5402)

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

The version of Firefox installed on the remote macOS or Mac OS X host is prior to 52.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2017-05 advisory.

  - Mozilla developers and community members Carsten Book, Calixte Denizet, Christian Holler, Andrew     McCreight, David Bolter, David Keeler, Jon Coppeard, Tyson Smith, Ronald Crane, Tooru Fujisawa, Ben Kelly,     Bob Owen, Jed Davis, Julian Seward, Julian Hector, Philipp, Markus Stange, and  Andr Bargull reported     memory safety bugs present in Firefox 51. Some of these bugs showed evidence of memory corruption and we     presume that with enough effort that some of these could be exploited to run arbitrary code.
    (CVE-2017-5399)

  - A segmentation fault can occur during some bidirectional layout operations. (CVE-2017-5413)

  - JIT-spray targeting asm.js combined with a heap spray allows for a bypass of ASLR and DEP protections     leading to potential memory corruption attacks. (CVE-2017-5400)

  - A crash triggerable by web content in which an <code>ErrorResult</code> references unassigned memory due     to a logic error. The resulting crash may be exploitable. (CVE-2017-5401)

  - A use-after-free can occur when events are fired for a <code>FontFace</code> object after the object has     been already been destroyed while working with fonts. This results in a potentially exploitable crash.
    (CVE-2017-5402)

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

An update for firefox is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Mozilla Firefox is an open source web browser.

This update upgrades Firefox to version 52.0 ESR.

Security Fix(es) :

* Multiple flaws were found in the processing of malformed web content. A web page containing malicious content could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox. (CVE-2017-5398, CVE-2017-5400, CVE-2017-5401, CVE-2017-5402, CVE-2017-5404, CVE-2017-5407, CVE-2017-5408, CVE-2017-5410, CVE-2017-5405)

Red Hat would like to thank the Mozilla project for reporting these issues. Upstream acknowledges Nils, Jerri Rice, Rh0, Anton Eliasson, David Kohlbrenner, Ivan Fratric of Google Project Zero, Anonymous, Eric Lawrence of Chrome Security, Boris Zbarsky, Christian Holler, Honza Bambas, Jon Coppeard, Randell Jesup, Andre Bargull, Kan-Ru Chen, and Nathan Froyd as the original reporters.

Mozilla Foundation reports :

Please reference CVE/URL list for details

The remote Oracle Linux 5 / 6 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2017-0459 advisory.

    [45.8.0-2.0.1]
    - Add firefox-oracle-default-prefs.js and firefox-oracle-default-bookmarks.html       and remove the corresponding Red Hat files

    [45.8.0-2]
    - Update to 45.8.0 ESR (B2)

    [45.8.0-1]
    - Update to 45.8.0 ESR

    [45.7.0-2]
    - Enabled ppc/s390 arches (rhbz#1418765)

Tenable has extracted the preceding description block directly from the Oracle 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.

An update for thunderbird is now available for Red Hat Enterprise Linux 5, Red Hat Enterprise Linux 6, and Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Mozilla Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 45.8.0.

Security Fix(es) :

* Multiple flaws were found in the processing of malformed web content. A web page containing malicious content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2017-5398, CVE-2017-5400, CVE-2017-5401, CVE-2017-5402, CVE-2017-5404, CVE-2017-5407, CVE-2017-5408, CVE-2017-5410, CVE-2017-5405)

Red Hat would like to thank the Mozilla project for reporting these issues. Upstream acknowledges Nils, Jerri Rice, Rh0, Anton Eliasson, David Kohlbrenner, Ivan Fratric of Google Project Zero, Anonymous, Eric Lawrence of Chrome Security, Boris Zbarsky, Christian Holler, Honza Bambas, Jon Coppeard, Randell Jesup, Andre Bargull, Kan-Ru Chen, and Nathan Froyd as the original reporters.

An update for firefox is now available for Red Hat Enterprise Linux 5 and Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Mozilla Firefox is an open source web browser.

This update upgrades Firefox to version 45.8.0 ESR.

Security Fix(es) :

* Multiple flaws were found in the processing of malformed web content. A web page containing malicious content could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox. (CVE-2017-5398, CVE-2017-5400, CVE-2017-5401, CVE-2017-5402, CVE-2017-5404, CVE-2017-5407, CVE-2017-5408, CVE-2017-5410, CVE-2017-5405)

Red Hat would like to thank the Mozilla project for reporting these issues. Upstream acknowledges Nils, Jerri Rice, Rh0, Anton Eliasson, David Kohlbrenner, Ivan Fratric of Google Project Zero, Anonymous, Eric Lawrence of Chrome Security, Boris Zbarsky, Christian Holler, Honza Bambas, Jon Coppeard, Randell Jesup, AndrA(c) Bargull, Kan-Ru Chen, and Nathan Froyd as the original reporters.

Note that Tenable Network Security has attempted to extract the preceding description block directly from the corresponding Red Hat security advisory. Virtuozzo provides no description for VZLSA advisories. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Published	Updated	Severity
275670	Mozilla Thunderbird < 45.8	Nessus	MacOS X Local Security Checks	11/18/2025	11/18/2025	critical
275676	Mozilla Thunderbird < 52.0	Nessus	Windows	11/18/2025	11/18/2025	critical
275704	Mozilla Firefox < 52.0	Nessus	MacOS X Local Security Checks	11/18/2025	11/18/2025	critical
97613	CentOS 7 : firefox (CESA-2017:0461)	Nessus	CentOS Local Security Checks	3/9/2017	12/30/2025	critical
97592	FreeBSD : mozilla -- multiple vulnerabilities (96eca031-1313-4daf-9be2-9d6e1c4f1eb5)	Nessus	FreeBSD Local Security Checks	3/8/2017	12/30/2025	critical
97626	Oracle Linux 5 / 6 : firefox (ELSA-2017-0459)	Nessus	Oracle Linux Local Security Checks	3/9/2017	10/23/2024	critical
97756	CentOS 5 / 6 / 7 : thunderbird (CESA-2017:0498)	Nessus	CentOS Local Security Checks	3/16/2017	12/30/2025	critical
101435	Virtuozzo 6 : firefox (VZLSA-2017-0459)	Nessus	Virtuozzo Local Security Checks	7/13/2017	12/11/2025	critical

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