If Firefox is installed to a user-writable directory, the Mozilla Maintenance Service would execute updater.exe from the install location with system privileges. Although the Mozilla Maintenance Service does ensure that updater.exe is signed by Mozilla, the version could have been rolled back to a previous version which would have allowed exploitation of an older bug and arbitrary code execution with System Privileges. *Note: This issue only affected Windows operating systems. Other operating systems are unaffected.*. This vulnerability affects Firefox < 80, Thunderbird < 78.2, Thunderbird < 68.12, Firefox ESR < 68.12, and Firefox ESR < 78.2.

The remote SUSE Linux SLES11 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2020:14489-1 advisory.

  - If Firefox is installed to a user-writable directory, the Mozilla Maintenance Service would execute     updater.exe from the install location with system privileges. Although the Mozilla Maintenance Service     does ensure that updater.exe is signed by Mozilla, the version could have been rolled back to a previous     version which would have allowed exploitation of an older bug and arbitrary code execution with System     Privileges. *Note: This issue only affected Windows operating systems. Other operating systems are     unaffected.*. This vulnerability affects Firefox < 80, Thunderbird < 78.2, Thunderbird < 68.12, Firefox     ESR < 68.12, and Firefox ESR < 78.2. (CVE-2020-15663)

  - By holding a reference to the eval() function from an about:blank window, a malicious webpage could have     gained access to the InstallTrigger object which would allow them to prompt the user to install an     extension. Combined with user confusion, this could result in an unintended or malicious extension being     installed. This vulnerability affects Firefox < 80, Thunderbird < 78.2, Thunderbird < 68.12, Firefox ESR <     68.12, Firefox ESR < 78.2, and Firefox for Android < 80. (CVE-2020-15664)

  - Mozilla developers reported memory safety bugs present in Firefox for Android 79. 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 < 80, Firefox ESR < 78.2, Thunderbird     < 78.2, and Firefox for Android < 80. (CVE-2020-15670)

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

New mozilla-thunderbird packages are available for Slackware 14.2 and
-current to fix security issues.

This update for MozillaThunderbird fixes the following issues :

  - Mozilla Thunderbird was updated to 68.12 (bsc#1175686)

  - CVE-2020-15663: Downgrade attack on the Mozilla     Maintenance Service could have resulted in escalation of     privilege

  - CVE-2020-15664: Attacker-induced prompt for extension     installation

  - CVE-2020-15669: Use-After-Free when aborting an     operation

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

This update for MozillaFirefox fixes the following issues :

  - Firefox Extended Support Release 78.2.0 ESR

  - Fixed: Various stability, functionality, and security     fixes

  - Mozilla Firefox ESR 78.2 MFSA 2020-38 (bsc#1175686)

  - CVE-2020-15663 (bmo#1643199) Downgrade attack on the     Mozilla Maintenance Service could have resulted in     escalation of privilege

  - CVE-2020-15664 (bmo#1658214) Attacker-induced prompt for     extension installation

  - CVE-2020-15670 (bmo#1651001, bmo#1651449, bmo#1653626,     bmo#1656957) Memory safety bugs fixed in Firefox 80 and     Firefox ESR 78.2

  - Fixed Firefox tab crash in FIPS mode (bsc#1174284).

  - Fix broken translation-loading (bsc#1173991) 

  - allow addon sideloading

  - mark signatures for langpacks non-mandatory

  - do not autodisable user profile scopes

  - Google API key is not usable for geolocation service any     more

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

This update for MozillaFirefox fixes the following issues :

Firefox Extended Support Release 78.2.0 ESR

  - Fixed: Various stability, functionality, and security     fixes

Mozilla Firefox ESR 78.2 MFSA 2020-38 (bsc#1175686)

  - CVE-2020-15663 (bmo#1643199) Downgrade attack on the     Mozilla Maintenance Service could have resulted in     escalation of privilege

  - CVE-2020-15664 (bmo#1658214) Attacker-induced prompt for     extension installation

  - CVE-2020-15670 (bmo#1651001, bmo#1651449, bmo#1653626,     bmo#1656957) Memory safety bugs fixed in Firefox 80 and     Firefox ESR 78.2

Fixed Firefox tab crash in FIPS mode (bsc#1174284).

Fix broken translation-loading (bsc#1173991)

  - allow addon sideloading

  - mark signatures for langpacks non-mandatory

  - do not autodisable user profile scopes

Google API key is not usable for geolocation service any more

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for MozillaFirefox fixes the following issues :

Firefox Extended Support Release 78.2.0 ESR

  - Fixed: Various stability, functionality, and security     fixes

Mozilla Firefox ESR 78.2 MFSA 2020-38 (bsc#1175686)

  - CVE-2020-15663 (bmo#1643199) Downgrade attack on the     Mozilla Maintenance Service could have resulted in     escalation of privilege

  - CVE-2020-15664 (bmo#1658214) Attacker-induced prompt for     extension installation

  - CVE-2020-15670 (bmo#1651001, bmo#1651449, bmo#1653626,     bmo#1656957) Memory safety bugs fixed in Firefox 80 and     Firefox ESR 78.2

Fixed Firefox tab crash in FIPS mode (bsc#1174284).

Fix broken translation-loading. (bsc#1173991)

  - allow addon sideloading

  - mark signatures for langpacks non-mandatory

  - do not autodisable user profile scopes

Google API key is not usable for geolocation service any more

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The version of Thunderbird installed on the remote Windows host is prior to 68.12. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-40 advisory. 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 Thunderbird installed on the remote macOS or Mac OS X host is prior to 68.12. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-40 advisory. 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 Thunderbird installed on the remote Windows host is prior to 78.2. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-41 advisory. 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 Thunderbird installed on the remote macOS or Mac OS X host is prior to 78.2. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-41 advisory. 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 78.2. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-38 advisory.

  - If Firefox is installed to a user-writable directory, the Mozilla Maintenance Service would execute     updater.exe from the install location with system privileges. Although the Mozilla Maintenance Service     does ensure that updater.exe is signed by Mozilla, the version could have been rolled back to a previous     version which would have allowed exploitation of an older bug and arbitrary code execution with System     Privileges.Note: This issue only affected Windows operating systems. Other operating systems are     unaffected. (CVE-2020-15663)

  - By holding a reference to the eval() function from an about:blank window, a malicious webpage     could have gained access to the InstallTrigger object which would allow them to prompt the user to install     an extension. Combined with user confusion, this could result in an unintended or malicious extension     being installed. (CVE-2020-15664)

  - Mozilla developers Jason Kratzer, Christian Holler, Byron Campen, Tyson Smith reported memory safety bugs     present in Firefox 79 and Firefox ESR 78.1. 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.
    (CVE-2020-15670)

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 macOS or Mac OS X host is prior to 78.2. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-38 advisory.

  - If Firefox is installed to a user-writable directory, the Mozilla Maintenance Service would execute     updater.exe from the install location with system privileges. Although the Mozilla Maintenance Service     does ensure that updater.exe is signed by Mozilla, the version could have been rolled back to a previous     version which would have allowed exploitation of an older bug and arbitrary code execution with System     Privileges.Note: This issue only affected Windows operating systems. Other operating systems are     unaffected. (CVE-2020-15663)

  - By holding a reference to the eval() function from an about:blank window, a malicious webpage     could have gained access to the InstallTrigger object which would allow them to prompt the user to install     an extension. Combined with user confusion, this could result in an unintended or malicious extension     being installed. (CVE-2020-15664)

  - Mozilla developers Jason Kratzer, Christian Holler, Byron Campen, Tyson Smith reported memory safety bugs     present in Firefox 79 and Firefox ESR 78.1. 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.
    (CVE-2020-15670)

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 installed on the remote Windows host is prior to 80.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-36 advisory. 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 installed on the remote macOS or Mac OS X host is prior to 80.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-36 advisory. 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 68.12. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-37 advisory. 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 macOS or Mac OS X host is prior to 68.12. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-37 advisory. 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	Severity
150616	SUSE SLES11 Security Update : MozillaFirefox (SUSE-SU-2020:14489-1)	Nessus	SuSE Local Security Checks	high
140568	Slackware 14.2 / current : mozilla-thunderbird (SSA:2020-256-01)	Nessus	Slackware Local Security Checks	high
140510	openSUSE Security Update : MozillaThunderbird (openSUSE-2020-1392)	Nessus	SuSE Local Security Checks	high
140509	openSUSE Security Update : MozillaFirefox (openSUSE-2020-1391)	Nessus	SuSE Local Security Checks	high
140445	openSUSE Security Update : MozillaFirefox (openSUSE-2020-1384)	Nessus	SuSE Local Security Checks	high
140444	openSUSE Security Update : MozillaThunderbird (openSUSE-2020-1383)	Nessus	SuSE Local Security Checks	high
140388	SUSE SLED15 / SLES15 Security Update : MozillaFirefox (SUSE-SU-2020:2563-1)	Nessus	SuSE Local Security Checks	high
140386	SUSE SLES12 Security Update : MozillaFirefox (SUSE-SU-2020:2544-1)	Nessus	SuSE Local Security Checks	high
139870	Mozilla Thunderbird < 68.12	Nessus	Windows	high
139869	Mozilla Thunderbird < 68.12	Nessus	MacOS X Local Security Checks	high
139868	Mozilla Thunderbird < 78.2	Nessus	Windows	high
139867	Mozilla Thunderbird < 78.2	Nessus	MacOS X Local Security Checks	high
139791	Mozilla Firefox ESR < 78.2	Nessus	Windows	high
139790	Mozilla Firefox ESR < 78.2	Nessus	MacOS X Local Security Checks	high
139789	Mozilla Firefox < 80.0	Nessus	Windows	high
139788	Mozilla Firefox < 80.0	Nessus	MacOS X Local Security Checks	high
139787	Mozilla Firefox ESR < 68.12	Nessus	Windows	high
139786	Mozilla Firefox ESR < 68.12	Nessus	MacOS X Local Security Checks	high

Detections

Analytics

CVE-2020-15663

high

Tenable Plugins

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high