This update for MozillaThunderbird to version 68.4.1 fixes the following issues :

Security issues fixed :

  - CVE-2019-17026: IonMonkey type confusion with     StoreElementHole and FallibleStoreElement

  - CVE-2019-17016: Bypass of @namespace CSS sanitization     during pasting

  - CVE-2019-17017: Type Confusion in XPCVariant.cpp

  - CVE-2019-17022: CSS sanitization does not escape HTML     tags

  - CVE-2019-17024: multiple Memory safety bugs fixed

Non-security issues fixed :

  - Various improvements when setting up an account for a     Microsoft Exchange server. For example better detection     for Office 365 accounts.

This update was imported from the SUSE:SLE-15:Update update project.

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2020:0292 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    This update upgrades Thunderbird to version 68.4.1.

    Security Fix(es):

    * Mozilla: IonMonkey type confusion with StoreElementHole and FallibleStoreElement (CVE-2019-17026)

    * Mozilla: Use-after-free in worker destruction (CVE-2019-17008)

    * Mozilla: Memory safety bugs fixed in Firefox 71 and Firefox ESR 68.3 (CVE-2019-17012)

    * Mozilla: Bypass of @namespace CSS sanitization during pasting (CVE-2019-17016)

    * Mozilla: Type Confusion in XPCVariant.cpp (CVE-2019-17017)

    * Mozilla: Memory safety bugs fixed in Firefox 72 and Firefox ESR 68.4 (CVE-2019-17024)

    * Mozilla: Buffer overflow in plain text serializer (CVE-2019-17005)

    * Mozilla: Use-after-free when performing device orientation checks (CVE-2019-17010)

    * Mozilla: Use-after-free when retrieving a document in antitracking (CVE-2019-17011)

    * Mozilla: CSS sanitization does not escape HTML tags (CVE-2019-17022)

    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 Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2020:0295 advisory.

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

    This update upgrades Firefox to version 68.4.1 ESR.

    Security Fix(es):

    * Mozilla: IonMonkey type confusion with StoreElementHole and FallibleStoreElement (CVE-2019-17026)

    * Mozilla: Use-after-free in worker destruction (CVE-2019-17008)

    * Mozilla: Memory safety bugs fixed in Firefox 71 and Firefox ESR 68.3 (CVE-2019-17012)

    * Mozilla: Bypass of @namespace CSS sanitization during pasting (CVE-2019-17016)

    * Mozilla: Type Confusion in XPCVariant.cpp (CVE-2019-17017)

    * Mozilla: Memory safety bugs fixed in Firefox 72 and Firefox ESR 68.4 (CVE-2019-17024)

    * Mozilla: Buffer overflow in plain text serializer (CVE-2019-17005)

    * Mozilla: Use-after-free when performing device orientation checks (CVE-2019-17010)

    * Mozilla: Use-after-free when retrieving a document in antitracking (CVE-2019-17011)

    * Mozilla: CSS sanitization does not escape HTML tags (CVE-2019-17022)

    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 Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Mozilla developers reported memory safety bugs present in Firefox 71 and Firefox ESR 68.3. 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 ESR < 68.4 and Firefox < 72.
    (CVE-2019-17024)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote MiracleLinux 4 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2020-4431:01 advisory.

    * Mozilla: IonMonkey type confusion with StoreElementHole and FallibleStoreElement (CVE-2019-17026)
      * Mozilla: Bypass of @namespace CSS sanitization during pasting (CVE-2019-17016)
      * Mozilla: Type Confusion in XPCVariant.cpp (CVE-2019-17017)
      * Mozilla: Memory safety bugs fixed in Firefox 72 and Firefox ESR 68.4 (CVE-2019-17024)
      * Mozilla: CSS sanitization does not escape HTML tags (CVE-2019-17022)

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

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

ID	Name	Product	Family	Published	Updated	Severity
133199	openSUSE Security Update : MozillaThunderbird (openSUSE-2020-94)	Nessus	SuSE Local Security Checks	1/23/2020	3/29/2024	high
133384	RHEL 8 : thunderbird (RHSA-2020:0292)	Nessus	Red Hat Local Security Checks	1/31/2020	11/7/2024	high
133386	RHEL 8 : firefox (RHSA-2020:0295)	Nessus	Red Hat Local Security Checks	1/31/2020	11/7/2024	high
147407	NewStart CGSL MAIN 4.06 : firefox Multiple Vulnerabilities (NS-SA-2021-0004)	Nessus	NewStart CGSL Local Security Checks	3/10/2021	4/25/2023	critical
243751	Linux Distros Unpatched Vulnerability : CVE-2019-17024	Nessus	Misc.	8/5/2025	8/5/2025	high
294757	MiracleLinux 4 : thunderbird-68.4.1-2.AXS4 (AXSA:2020-4431:01)	Nessus	Miracle Linux Local Security Checks	1/20/2026	2/4/2026	high

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