Security Fix(es) :

  - Mozilla: Memory safety bugs fixed in Firefox 81 and     Firefox ESR 78.3 (CVE-2020-15673)

  - Mozilla: XSS when pasting attacker-controlled data into     a contenteditable element (CVE-2020-15676)

  - Mozilla: Download origin spoofing via redirect     (CVE-2020-15677)

  - Mozilla: When recursing through layers while scrolling,     an iterator may have become invalid, resulting in a     potential use-after-free scenario (CVE-2020-15678)

The remote MiracleLinux 4 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2020-833:08 advisory.

    * Mozilla: Memory safety bugs fixed in Firefox 81 and Firefox ESR 78.3 (CVE-2020-15673)
      * Mozilla: XSS when pasting attacker-controlled data into a contenteditable element (CVE-2020-15676)
      * Mozilla: Download origin spoofing via redirect (CVE-2020-15677)
      * Mozilla: When recursing through layers while scrolling, an iterator may have become invalid, resulting     in a potential use-after-free scenario (CVE-2020-15678)

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.

The remote Oracle Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2020-4155 advisory.

    [78.3.1-1.0.1]
    - Update to 68.12.0 build1

    [78.3.1-1]
    - Update to 78.3.1 build1

    [78.3.0-3]
    - Update to 78.3.0 build1
    - Remove librdp.so as long as we cannot ship it in RHEL

    [78.2.1-1]
    - Update to 78.2.1 build1

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.

This update for MozillaFirefox fixes the following issues :

-Firefox was updated to 78.3.0 ESR (bsc#1176756, MFSA 2020-43)

  - CVE-2020-15677: Download origin spoofing via redirect

  - CVE-2020-15676: Fixed an XSS when pasting     attacker-controlled data into a contenteditable element 

  - CVE-2020-15678: When recursing through layers while     scrolling, an iterator may have become invalid,     resulting in a potential use-after-free scenario

  - CVE-2020-15673: Fixed memory safety bugs 

  - Enhance fix for wayland-detection (bsc#1174420)

  - Attempt to fix langpack-parallelization by introducing     separate obj-dirs for each lang (bsc#1173986,     bsc#1167976)

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

This update for MozillaThunderbird and mozilla-nspr fixes the following issues :

Mozilla Thunderbird 78.4

  - new: MailExtensions: browser.tabs.sendMessage API added

  - new: MailExtensions: messageDisplayScripts API added

  - changed: Yahoo and AOL mail users using password     authentication will be migrated to OAuth2

  - changed: MailExtensions: messageDisplay APIs extended to     support multiple selected messages

  - changed: MailExtensions: compose.begin functions now     support creating a message with attachments

  - fixed: Thunderbird could freeze when updating global     search index

  - fixed: Multiple issues with handling of self-signed SSL     certificates addressed

  - fixed: Recipient address fields in compose window could     expand to fill all available space

  - fixed: Inserting emoji characters in message compose     window caused unexpected behavior

  - fixed: Button to restore default folder icon color was     not keyboard accessible

  - fixed: Various keyboard navigation fixes

  - fixed: Various color-related theme fixes

  - fixed: MailExtensions: Updating attachments with     onBeforeSend.addListener() did not work MFSA 2020-47     (bsc#1177977)

  - CVE-2020-15969 Use-after-free in usersctp

  - CVE-2020-15683 Memory safety bugs fixed in Thunderbird     78.4

Mozilla Thunderbird 78.3.3

  - OpenPGP: Improved support for encrypting with subkeys

  - OpenPGP message status icons were not visible in message     header pane

  - Creating a new calendar event did not require an event     title

Mozilla Thunderbird 78.3.2 (bsc#1176899)

  - OpenPGP: Improved support for encrypting with subkeys

  - OpenPGP: Encrypted messages with international     characters were sometimes displayed incorrectly

  - Single-click deletion of recipient pills with middle     mouse button restored

  - Searching an address book list did not display results

  - Dark mode, high contrast, and Windows theming fixes

Mozilla Thunderbird 78.3.1

  - fix crash in nsImapProtocol::CreateNewLineFromSocket

Mozilla Thunderbird 78.3.0 MFSA 2020-44 (bsc#1176756)

  - CVE-2020-15677 Download origin spoofing via redirect

  - CVE-2020-15676 XSS when pasting attacker-controlled data     into a contenteditable element

  - CVE-2020-15678 When recursing through layers while     scrolling, an iterator may have become invalid,     resulting in a potential use-after- free scenario

  - CVE-2020-15673 Memory safety bugs fixed in Thunderbird     78.3

update mozilla-nspr to version 4.25.1

  - The macOS platform code for shared library loading was     changed to support macOS 11.

  - Dependency needed for the MozillaThunderbird udpate

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 remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has firefox packages installed that are affected by multiple vulnerabilities:

  - In non-standard configurations, a JPEG image created by JavaScript could have caused an internal variable     to overflow, resulting in an out of bounds write, memory corruption, and a potentially exploitable crash.
    This vulnerability affects Firefox < 78. (CVE-2020-12422)

  - When constructing a permission prompt for WebRTC, a URI was supplied from the content process. This URI     was untrusted, and could have been the URI of an origin that was previously granted permission; bypassing     the prompt. This vulnerability affects Firefox < 78. (CVE-2020-12424)

  - Due to confusion processing a hyphen character in Date.parse(), a one-byte out of bounds read could have     occurred, leading to potential information disclosure. This vulnerability affects Firefox < 78.
    (CVE-2020-12425)

  - Using object or embed tags, it was possible to frame other websites, even if they disallowed framing using     the X-Frame-Options header. This vulnerability affects Thunderbird < 78 and Firefox < 78.0.2.
    (CVE-2020-15648)

  - An iframe sandbox element with the allow-popups flag could be bypassed when using noopener links. This     could have led to security issues for websites relying on sandbox configurations that allowed popups and     hosted arbitrary content. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird <     78.1. (CVE-2020-15653)

  - When in an endless loop, a website specifying a custom cursor using CSS could make it look like the user     is interacting with the user interface, when they are not. This could lead to a perceived broken state,     especially when interactions with existing browser dialogs and warnings do not work. This vulnerability     affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1. (CVE-2020-15654)

  - JIT optimizations involving the Javascript arguments object could confuse later optimizations. This risk     was already mitigated by various precautions in the code, resulting in this bug rated at only moderate     severity. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.
    (CVE-2020-15656)

  - The code for downloading files did not properly take care of special characters, which led to an attacker     being able to cut off the file ending at an earlier position, leading to a different file type being     downloaded than shown in the dialog. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and     Thunderbird < 78.1. (CVE-2020-15658)

  - Mozilla developers reported memory safety bugs present in Firefox 80 and Firefox ESR 78.2. 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 < 81, Thunderbird < 78.3, and     Firefox ESR < 78.3. (CVE-2020-15673)

  - Firefox sometimes ran the onload handler for SVG elements that the DOM sanitizer decided to remove,     resulting in JavaScript being executed after pasting attacker-controlled data into a contenteditable     element. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3.
    (CVE-2020-15676)

  - By exploiting an Open Redirect vulnerability on a website, an attacker could have spoofed the site     displayed in the download file dialog to show the original site (the one suffering from the open redirect)     rather than the site the file was actually downloaded from. This vulnerability affects Firefox < 81,     Thunderbird < 78.3, and Firefox ESR < 78.3. (CVE-2020-15677)

  - When recursing through graphical layers while scrolling, an iterator may have become invalid, resulting in     a potential use-after-free. This occurs because the function     APZCTreeManager::ComputeClippedCompositionBounds did not follow iterator invalidation rules. This     vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3. (CVE-2020-15678)

  - Mozilla developers and community members reported memory safety bugs present in Firefox 81 and Firefox ESR     78.3. 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 < 78.4,     Firefox < 82, and Thunderbird < 78.4. (CVE-2020-15683)

  - Use after free in WebRTC in Google Chrome prior to 86.0.4240.75 allowed a remote attacker to potentially     exploit heap corruption via a crafted HTML page. (CVE-2020-15969)

  - Side-channel information leakage in graphics in Google Chrome prior to 87.0.4280.66 allowed a remote     attacker to leak cross-origin data via a crafted HTML page. (CVE-2020-16012)

  - Uninitialized Use in V8 in Google Chrome prior to 87.0.4280.88 allowed a remote attacker to obtain     potentially sensitive information from process memory via a crafted HTML page. (CVE-2020-16042)

  - In certain circumstances, the MCallGetProperty opcode can be emitted with unmet assumptions resulting in     an exploitable use-after-free condition. This vulnerability affects Firefox < 82.0.3, Firefox ESR <     78.4.1, and Thunderbird < 78.4.2. (CVE-2020-26950)

  - A parsing and event loading mismatch in Firefox's SVG code could have allowed load events to fire, even     after sanitization. An attacker already capable of exploiting an XSS vulnerability in privileged internal     pages could have used this attack to bypass our built-in sanitizer. This vulnerability affects Firefox <     83, Firefox ESR < 78.5, and Thunderbird < 78.5. (CVE-2020-26951)

  - It was possible to cause the browser to enter fullscreen mode without displaying the security UI; thus     making it possible to attempt a phishing attack or otherwise confuse the user. This vulnerability affects     Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5. (CVE-2020-26953)

  - In some cases, removing HTML elements during sanitization would keep existing SVG event handlers and     therefore lead to XSS. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird <     78.5. (CVE-2020-26956)

  - Firefox did not block execution of scripts with incorrect MIME types when the response was intercepted and     cached through a ServiceWorker. This could lead to a cross-site script inclusion vulnerability, or a     Content Security Policy bypass. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and     Thunderbird < 78.5. (CVE-2020-26958)

  - During browser shutdown, reference decrementing could have occured on a previously freed object, resulting     in a use-after-free, memory corruption, and a potentially exploitable crash. This vulnerability affects     Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5. (CVE-2020-26959)

  - If the Compact() method was called on an nsTArray, the array could have been reallocated without updating     other pointers, leading to a potential use-after-free and exploitable crash. This vulnerability affects     Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5. (CVE-2020-26960)

  - When DNS over HTTPS is in use, it intentionally filters RFC1918 and related IP ranges from the responses     as these do not make sense coming from a DoH resolver. However when an IPv4 address was mapped through     IPv6, these addresses were erroneously let through, leading to a potential DNS Rebinding attack. This     vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5. (CVE-2020-26961)

  - Some websites have a feature Show Password where clicking a button will change a password field into a     textbook field, revealing the typed password. If, when using a software keyboard that remembers user     input, a user typed their password and used that feature, the type of the password field was changed,     resulting in a keyboard layout change and the possibility for the software keyboard to remember the typed     password. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.
    (CVE-2020-26965)

  - Mozilla developers reported memory safety bugs present in Firefox 82 and Firefox ESR 78.4. 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 < 83, Firefox ESR < 78.5, and     Thunderbird < 78.5. (CVE-2020-26968)

  - Certain blit values provided by the user were not properly constrained leading to a heap buffer overflow     on some video drivers. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR <     78.6. (CVE-2020-26971)

  - Certain input to the CSS Sanitizer confused it, resulting in incorrect components being removed. This     could have been used as a sanitizer bypass. This vulnerability affects Firefox < 84, Thunderbird < 78.6,     and Firefox ESR < 78.6. (CVE-2020-26973)

  - When flex-basis was used on a table wrapper, a StyleGenericFlexBasis object could have been incorrectly     cast to the wrong type. This resulted in a heap user-after-free, memory corruption, and a potentially     exploitable crash. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.
    (CVE-2020-26974)

  - Using techniques that built on the slipstream research, a malicious webpage could have exposed both an     internal network's hosts as well as services running on the user's local machine. This vulnerability     affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6. (CVE-2020-26978)

  - When an extension with the proxy permission registered to receive <all_urls>, the proxy.onRequest callback     was not triggered for view-source URLs. While web content cannot navigate to such URLs, a user opening     View Source could have inadvertently leaked their IP address. This vulnerability affects Firefox < 84,     Thunderbird < 78.6, and Firefox ESR < 78.6. (CVE-2020-35111)

  - Mozilla developers reported memory safety bugs present in Firefox 83 and Firefox ESR 78.5. 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 < 84, Thunderbird < 78.6, and     Firefox ESR < 78.6. (CVE-2020-35113)

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
141104	Scientific Linux Security Update : firefox on SL6.x i386/x86_64 (20200924)	Nessus	Scientific Linux Local Security Checks	10/1/2020	2/16/2024	high
294072	MiracleLinux 4 : thunderbird-78.3.1-1.0.1.AXS4 (AXSA:2020-833:08)	Nessus	Miracle Linux Local Security Checks	1/20/2026	1/20/2026	high
141130	Oracle Linux 8 : thunderbird (ELSA-2020-4155)	Nessus	Oracle Linux Local Security Checks	10/5/2020	10/23/2024	high
141081	openSUSE Security Update : MozillaFirefox (openSUSE-2020-1574)	Nessus	SuSE Local Security Checks	9/30/2020	2/16/2024	high
143647	SUSE SLED15 / SLES15 Security Update : MozillaThunderbird / mozilla-nspr (SUSE-SU-2020:3091-1)	Nessus	SuSE Local Security Checks	12/9/2020	2/6/2024	critical
154543	NewStart CGSL CORE 5.05 / MAIN 5.05 : firefox Multiple Vulnerabilities (NS-SA-2021-0154)	Nessus	NewStart CGSL Local Security Checks	10/27/2021	5/9/2022	critical
147312	NewStart CGSL MAIN 4.06 : thunderbird Multiple Vulnerabilities (NS-SA-2021-0002)	Nessus	NewStart CGSL Local Security Checks	3/10/2021	4/25/2023	critical

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