The remote host is affected by the vulnerability described in GLSA-202202-03 (Mozilla Firefox: Multiple vulnerabilities)

  - A malicious webpage could have triggered a use-after-free, memory corruption, and a potentially     exploitable crash. *This bug could only be triggered when accessibility was enabled.*. This vulnerability     affects Thunderbird < 78.12, Firefox ESR < 78.12, and Firefox < 90. (CVE-2021-29970)

  - A use-after-free vulnerability was found via testing, and traced to an out-of-date Cairo library. Updating     the library resolved the issue, and may have remediated other, unknown security vulnerabilities as well.
    This vulnerability affects Firefox < 90. (CVE-2021-29972)

  - When network partitioning was enabled, e.g. as a result of Enhanced Tracking Protection settings, a TLS     error page would allow the user to override an error on a domain which had specified HTTP Strict Transport     Security (which implies that the error should not be override-able.) This issue did not affect the network     connections, and they were correctly upgraded to HTTPS automatically. This vulnerability affects Firefox <     90. (CVE-2021-29974)

  - Through a series of DOM manipulations, a message, over which the attacker had control of the text but not     HTML or formatting, could be overlaid on top of another domain (with the new domain correctly shown in the     address bar) resulting in possible user confusion. This vulnerability affects Firefox < 90.
    (CVE-2021-29975)

  - Mozilla developers reported memory safety bugs present in code shared between Firefox and Thunderbird.
    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 Thunderbird < 78.12,     Firefox ESR < 78.12, and Firefox < 90. (CVE-2021-29976)

  - Mozilla developers reported memory safety bugs present in Firefox 89. 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 < 90. (CVE-2021-29977)

  - Uninitialized memory in a canvas object could have caused an incorrect free() leading to memory corruption     and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91,     Firefox ESR < 78.13, and Firefox < 91. (CVE-2021-29980)

  - An issue present in lowering/register allocation could have led to obscure but deterministic register     confusion failures in JITted code that would lead to a potentially exploitable crash. This vulnerability     affects Firefox < 91 and Thunderbird < 91. (CVE-2021-29981)

  - Due to incorrect JIT optimization, we incorrectly interpreted data from the wrong type of object,     resulting in the potential leak of a single bit of memory. This vulnerability affects Firefox < 91 and     Thunderbird < 91. (CVE-2021-29982)

  - Instruction reordering resulted in a sequence of instructions that would cause an object to be incorrectly     considered during garbage collection. This led to memory corruption and a potentially exploitable crash.
    This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.
    (CVE-2021-29984)

  - A use-after-free vulnerability in media channels could have led to memory corruption and a potentially     exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13,     and Firefox < 91. (CVE-2021-29985)

  - A suspected race condition when calling getaddrinfo led to memory corruption and a potentially exploitable     crash. *Note: This issue only affected Linux operating systems. Other operating systems are unaffected.*     This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.
    (CVE-2021-29986)

  - After requesting multiple permissions, and closing the first permission panel, subsequent permission     panels will be displayed in a different position but still record a click in the default location, making     it possible to trick a user into accepting a permission they did not want to. *This bug only affects     Firefox on Linux. Other operating systems are unaffected.*. This vulnerability affects Firefox < 91 and     Thunderbird < 91. (CVE-2021-29987)

  - Firefox incorrectly treated an inline list-item element as a block element, resulting in an out of bounds     read or memory corruption, and a potentially exploitable crash. This vulnerability affects Thunderbird <     78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91. (CVE-2021-29988)

  - Mozilla developers reported memory safety bugs present in Firefox 90 and Firefox ESR 78.12. 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 Thunderbird < 78.13, Firefox ESR < 78.13,     and Firefox < 91. (CVE-2021-29989)

  - Mozilla developers and community members reported memory safety bugs present in Firefox 90. 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 < 91. (CVE-2021-29990)

  - Out of bounds write in ANGLE in Google Chrome prior to 91.0.4472.101 allowed a remote attacker to     potentially perform out of bounds memory access via a crafted HTML page. (CVE-2021-30547)

  - Mixed-content checks were unable to analyze opaque origins which led to some mixed content being loaded.
    This vulnerability affects Firefox < 92. (CVE-2021-38491)

  - Mozilla developers reported memory safety bugs present in Firefox 91 and Firefox ESR 78.13. 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 < 78.14, Thunderbird < 78.14,     and Firefox < 92. (CVE-2021-38493)

  - Mozilla developers reported memory safety bugs present in Thunderbird 78.13.0. 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 Thunderbird < 91.1 and Firefox ESR < 91.1.
    (CVE-2021-38495)

  - The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass     restrictions such as executing scripts or navigating the top-level frame. This vulnerability affects     Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3. (CVE-2021-38503)

  - When interacting with an HTML input element's file picker dialog with webkitdirectory set, a use-after-     free could have resulted, leading to memory corruption and a potentially exploitable crash. This     vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3. (CVE-2021-38504)

  - Through a series of navigations, Firefox could have entered fullscreen mode without notification or     warning to the user. This could lead to spoofing attacks on the browser UI including phishing. This     vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3. (CVE-2021-38506)

  - The Opportunistic Encryption feature of HTTP2 (RFC 8164) allows a connection to be transparently upgraded     to TLS while retaining the visual properties of an HTTP connection, including being same-origin with     unencrypted connections on port 80. However, if a second encrypted port on the same IP address (e.g. port     8443) did not opt-in to opportunistic encryption; a network attacker could forward a connection from the     browser to port 443 to port 8443, causing the browser to treat the content of port 8443 as same-origin     with HTTP. This was resolved by disabling the Opportunistic Encryption feature, which had low usage. This     vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3. (CVE-2021-38507)

  - By displaying a form validity message in the correct location at the same time as a permission prompt     (such as for geolocation), the validity message could have obscured the prompt, resulting in the user     potentially being tricked into granting the permission. This vulnerability affects Firefox < 94,     Thunderbird < 91.3, and Firefox ESR < 91.3. (CVE-2021-38508)

  - Due to an unusual sequence of attacker-controlled events, a Javascript alert() dialog with arbitrary     (although unstyled) contents could be displayed over top an uncontrolled webpage of the attacker's     choosing. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
    (CVE-2021-38509)

  - Under certain circumstances, asynchronous functions could have caused a navigation to fail but expose the     target URL. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.
    (CVE-2021-43536)

  - An incorrect type conversion of sizes from 64bit to 32bit integers allowed an attacker to corrupt memory     leading to a potentially exploitable crash. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR <     91.4.0, and Firefox < 95. (CVE-2021-43537)

  - By misusing a race in our notification code, an attacker could have forcefully hidden the notification for     pages that had received full screen and pointer lock access, which could have been used for spoofing     attacks. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.
    (CVE-2021-43538)

  - Failure to correctly record the location of live pointers across wasm instance calls resulted in a GC     occurring within the call not tracing those live pointers. This could have led to a use-after-free causing     a potentially exploitable crash. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0,     and Firefox < 95. (CVE-2021-43539)

  - WebExtensions with the correct permissions were able to create and install ServiceWorkers for third-party     websites that would not have been uninstalled with the extension. This vulnerability affects Firefox < 95.
    (CVE-2021-43540)

  - When invoking protocol handlers for external protocols, a supplied parameter URL containing spaces was not     properly escaped. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.
    (CVE-2021-43541)

  - Using XMLHttpRequest, an attacker could have identified installed applications by probing error messages     for loading external protocols. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and     Firefox < 95. (CVE-2021-43542)

  - Documents loaded with the CSP sandbox directive could have escaped the sandbox's script restriction by     embedding additional content. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and     Firefox < 95. (CVE-2021-43543)

  - Using the Location API in a loop could have caused severe application hangs and crashes. This     vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95. (CVE-2021-43545)

  - It was possible to recreate previous cursor spoofing attacks against users with a zoomed native cursor.
    This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95. (CVE-2021-43546)

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

The remote MiracleLinux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2022-2985:03 advisory.

    * Mozilla: Iframe sandbox bypass with XSLT (CVE-2021-4140)
      * Mozilla: Race condition when playing audio files (CVE-2022-22737)
      * Mozilla: Heap-buffer-overflow in blendGaussianBlur (CVE-2022-22738)
      * Mozilla: Use-after-free of ChannelEventQueue::mOwner (CVE-2022-22740)
      * Mozilla: Browser window spoof using fullscreen mode (CVE-2022-22741)
      * Mozilla: Out-of-bounds memory access when inserting text in edit mode (CVE-2022-22742)
      * Mozilla: Browser window spoof using fullscreen mode (CVE-2022-22743)
      * Mozilla: Memory safety bugs fixed in Firefox 96 and Firefox ESR 91.5 (CVE-2022-22751)
      * Mozilla: Leaking cross-origin URLs through securitypolicyviolation event (CVE-2022-22745)
      * Mozilla: Spoofed origin on external protocol launch dialog (CVE-2022-22748)
      * Mozilla: Missing throttling on external protocol launch dialog (CVE-2022-22739)
      * Mozilla: Crash when handling empty pkcs7 sequence (CVE-2022-22747)

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 Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2022:0130 advisory.

  - It was possible to construct specific XSLT markup that would be able to bypass an iframe sandbox. This     vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5. (CVE-2021-4140)

  - Constructing audio sinks could have lead to a race condition when playing audio files and closing windows.
    This could have lead to a use-after-free causing a potentially exploitable crash. This vulnerability     affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5. (CVE-2022-22737)

  - Applying a CSS filter effect could have accessed out of bounds memory. This could have lead to a heap-     buffer-overflow causing a potentially exploitable crash. This vulnerability affects Firefox ESR < 91.5,     Firefox < 96, and Thunderbird < 91.5. (CVE-2022-22738)

  - Malicious websites could have tricked users into accepting launching a program to handle an external URL     protocol. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.
    (CVE-2022-22739)

  - Certain network request objects were freed too early when releasing a network request handle. This could     have lead to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox     ESR < 91.5, Firefox < 96, and Thunderbird < 91.5. (CVE-2022-22740)

  - When resizing a popup while requesting fullscreen access, the popup would have become unable to leave     fullscreen mode. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.
    (CVE-2022-22741)

  - When inserting text while in edit mode, some characters might have lead to out-of-bounds memory access     causing a potentially exploitable crash. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and     Thunderbird < 91.5. (CVE-2022-22742)

  - When navigating from inside an iframe while requesting fullscreen access, an attacker-controlled tab could     have made the browser unable to leave fullscreen mode. This vulnerability affects Firefox ESR < 91.5,     Firefox < 96, and Thunderbird < 91.5. (CVE-2022-22743)

  - Securitypolicyviolation events could have leaked cross-origin information for frame-ancestors violations.
    This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5. (CVE-2022-22745)

  - After accepting an untrusted certificate, handling an empty pkcs7 sequence as part of the certificate data     could have lead to a crash. This crash is believed to be unexploitable. This vulnerability affects Firefox     ESR < 91.5, Firefox < 96, and Thunderbird < 91.5. (CVE-2022-22747)

  - Malicious websites could have confused Firefox into showing the wrong origin when asking to launch a     program and handling an external URL protocol. This vulnerability affects Firefox ESR < 91.5, Firefox <     96, and Thunderbird < 91.5. (CVE-2022-22748)

  - Mozilla developers Calixte Denizet, Kershaw Chang, Christian Holler, Jason Kratzer, Gabriele Svelto, Tyson     Smith, Simon Giesecke, and Steve Fink reported memory safety bugs present in Firefox 95 and Firefox ESR     91.4. 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 ESR < 91.5,     Firefox < 96, and Thunderbird < 91.5. (CVE-2022-22751)

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

The remote host is affected by the vulnerability described in GLSA-202208-14 (Mozilla Thunderbird: Multiple Vulnerabilities)

  -  Please review the referenced CVE identifiers for details.  (CVE-2021-29967, CVE-2021-29969,     CVE-2021-29970, CVE-2021-29976, CVE-2021-29980, CVE-2021-29984, CVE-2021-29985, CVE-2021-29986,     CVE-2021-29988, CVE-2021-29989, CVE-2021-30547, CVE-2021-38492, CVE-2021-38493, CVE-2021-38495,     CVE-2021-38503, CVE-2021-38504, CVE-2021-38506, CVE-2021-38507, CVE-2021-38508, CVE-2021-38509,     CVE-2021-40529, CVE-2021-4129, CVE-2021-4140, CVE-2021-43528, CVE-2021-43529, CVE-2021-43536,     CVE-2021-43537, CVE-2021-43538, CVE-2021-43539, CVE-2021-43541, CVE-2021-43542, CVE-2021-43543,     CVE-2021-43545, CVE-2021-43546, CVE-2022-0566, CVE-2022-1196, CVE-2022-1197, CVE-2022-1520, CVE-2022-1529,     CVE-2022-1802, CVE-2022-1834, CVE-2022-2200, CVE-2022-2226, CVE-2022-22737, CVE-2022-22738,     CVE-2022-22739, CVE-2022-22740, CVE-2022-22741, CVE-2022-22742, CVE-2022-22743, CVE-2022-22745,     CVE-2022-22747, CVE-2022-22748, CVE-2022-22751, CVE-2022-22754, CVE-2022-22756, CVE-2022-22759,     CVE-2022-22760, CVE-2022-22761, CVE-2022-22763, CVE-2022-22764, CVE-2022-24713, CVE-2022-26381,     CVE-2022-26383, CVE-2022-26384, CVE-2022-26386, CVE-2022-26387, CVE-2022-26485, CVE-2022-26486,     CVE-2022-28281, CVE-2022-28282, CVE-2022-28285, CVE-2022-28286, CVE-2022-28289, CVE-2022-29909,     CVE-2022-29911, CVE-2022-29912, CVE-2022-29913, CVE-2022-29914, CVE-2022-29916, CVE-2022-29917,     CVE-2022-31736, CVE-2022-31737, CVE-2022-31738, CVE-2022-31740, CVE-2022-31741, CVE-2022-31742,     CVE-2022-31747, CVE-2022-34468, CVE-2022-34470, CVE-2022-34472, CVE-2022-34478, CVE-2022-34479,     CVE-2022-34481, CVE-2022-34484, CVE-2022-36318, CVE-2022-36319)

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-2022-0130 advisory.

    [91.5.0-1.0.1]
    - Removed Upstream references
    - Add firefox-oracle-default-prefs.js and remove the corresponding Red Hat file

    [91.5.0-1]
    - Update to 91.5.0 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.

The remote Scientific Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the SLSA-2022:0124-1 advisory.

  - Mozilla: Iframe sandbox bypass with XSLT (CVE-2021-4140)

  - Mozilla: Race condition when playing audio files (CVE-2022-22737)

  - Mozilla: Heap-buffer-overflow in blendGaussianBlur (CVE-2022-22738)

  - Mozilla: Use-after-free of ChannelEventQueue::mOwner (CVE-2022-22740)

  - Mozilla: Browser window spoof using fullscreen mode (CVE-2022-22741, CVE-2022-22743)

  - Mozilla: Out-of-bounds memory access when inserting text in edit mode (CVE-2022-22742)

  - Mozilla: Memory safety bugs fixed in Firefox 96 and Firefox ESR 91.5 (CVE-2022-22751)

  - Mozilla: Leaking cross-origin URLs through securitypolicyviolation event (CVE-2022-22745)

  - Mozilla: Spoofed origin on external protocol launch dialog (CVE-2022-22748)

  - Mozilla: Missing throttling on external protocol launch dialog (CVE-2022-22739)

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 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2022:0128 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    This update upgrades Thunderbird to version 91.5.0.

    Security Fix(es):

    * Mozilla: Iframe sandbox bypass with XSLT (CVE-2021-4140)

    * Mozilla: Race condition when playing audio files (CVE-2022-22737)

    * Mozilla: Heap-buffer-overflow in blendGaussianBlur (CVE-2022-22738)

    * Mozilla: Use-after-free of ChannelEventQueue::mOwner (CVE-2022-22740)

    * Mozilla: Browser window spoof using fullscreen mode (CVE-2022-22741)

    * Mozilla: Out-of-bounds memory access when inserting text in edit mode (CVE-2022-22742)

    * Mozilla: Browser window spoof using fullscreen mode (CVE-2022-22743)

    * Mozilla: Memory safety bugs fixed in Firefox 96 and Firefox ESR 91.5 (CVE-2022-22751)

    * Mozilla: Leaking cross-origin URLs through securitypolicyviolation event (CVE-2022-22745)

    * Mozilla: Spoofed origin on external protocol launch dialog (CVE-2022-22748)

    * Mozilla: Missing throttling on external protocol launch dialog (CVE-2022-22739)

    * Mozilla: Crash when handling empty pkcs7 sequence (CVE-2022-22747)

    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-2022:0130 advisory.

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

    This update upgrades Firefox to version 91.5.0 ESR.

    Security Fix(es):

    * Mozilla: Iframe sandbox bypass with XSLT (CVE-2021-4140)

    * Mozilla: Race condition when playing audio files (CVE-2022-22737)

    * Mozilla: Heap-buffer-overflow in blendGaussianBlur (CVE-2022-22738)

    * Mozilla: Use-after-free of ChannelEventQueue::mOwner (CVE-2022-22740)

    * Mozilla: Browser window spoof using fullscreen mode (CVE-2022-22741)

    * Mozilla: Out-of-bounds memory access when inserting text in edit mode (CVE-2022-22742)

    * Mozilla: Browser window spoof using fullscreen mode (CVE-2022-22743)

    * Mozilla: Memory safety bugs fixed in Firefox 96 and Firefox ESR 91.5 (CVE-2022-22751)

    * Mozilla: Leaking cross-origin URLs through securitypolicyviolation event (CVE-2022-22745)

    * Mozilla: Spoofed origin on external protocol launch dialog (CVE-2022-22748)

    * Mozilla: Missing throttling on external protocol launch dialog (CVE-2022-22739)

    * Mozilla: Crash when handling empty pkcs7 sequence (CVE-2022-22747)

    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 Ubuntu 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5248-1 advisory.

    Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially     crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of     service, obtain sensitive information, trick a user into accepting unwanted permissions, conduct header     splitting attacks, conduct spoofing attacks, bypass security restrictions, confuse the user, or execute     arbitrary code. (CVE-2021-4129, CVE-2021-4140, CVE-2021-29981, CVE-2021-29982, CVE-2021-29987,     CVE-2021-29991, CVE-2021-38495, CVE-2021-38496, CVE-2021-38497, CVE-2021-38498, CVE-2021-38500,     CVE-2021-38501, CVE-2021-38503, CVE-2021-38504, CVE-2021-38506, CVE-2021-38507, CVE-2021-38508,     CVE-2021-38509, CVE-2021-43534, CVE-2021-43535, CVE-2021-43536, CVE-2021-43537, CVE-2021-43538,     CVE-2021-43539, CVE-2021-43541, CVE-2021-43542, CVE-2021-43543, CVE-2021-43545, CVE-2021-43656,     CVE-2022-22737, CVE-2022-22738, CVE-2022-22739, CVE-2022-22740, CVE-2022-22741, CVE-2022-22742,     CVE-2022-22743, CVE-2022-22745, CVE-2022-22747, CVE-2022-22748, CVE-2022-22751)

    It was discovered that Thunderbird ignored the configuration to require STARTTLS for an SMTP connection. A     person-in-the-middle could potentially exploit this to perform a downgrade attack in order to intercept     messages or take control of a session. (CVE-2021-38502)

    It was discovered that JavaScript was unexpectedly enabled in the composition area. An attacker could     potentially exploit this in combination with another vulnerability, with unspecified impacts.
    (CVE-2021-43528)

    A buffer overflow was discovered in the Matrix chat library bundled with Thunderbird. An attacker could     potentially exploit this to cause a denial of service, or execute arbitrary code. (CVE-2021-44538)

    It was discovered that Thunderbird's OpenPGP integration only considered the inner signed message when     checking signature validity in a message that contains an additional outer MIME layer. An attacker could     potentially exploit this to trick the user into thinking that a message has a valid signature.
    (CVE-2021-4126)

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.

ID	Name	Product	Family	Published	Updated	Severity
159007	GLSA-202202-03 : Mozilla Firefox: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	3/17/2022	3/6/2025	critical
294686	MiracleLinux 8 : firefox-91.5.0-1.el8.ML.1 (AXSA:2022-2985:03)	Nessus	Miracle Linux Local Security Checks	1/20/2026	1/20/2026	critical
184998	Rocky Linux 8 : firefox (RLSA-2022:0130)	Nessus	Rocky Linux Local Security Checks	11/7/2023	11/7/2023	critical
163986	GLSA-202208-14 : Mozilla Thunderbird: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	8/10/2022	10/16/2023	critical
156708	Oracle Linux 8 : firefox (ELSA-2022-0130)	Nessus	Oracle Linux Local Security Checks	1/13/2022	10/22/2024	critical
156718	Scientific Linux Security Update : firefox on SL7.x i686/x86_64 (2022:0124)	Nessus	Scientific Linux Local Security Checks	1/13/2022	11/21/2023	critical
156731	RHEL 8 : thunderbird (RHSA-2022:0128)	Nessus	Red Hat Local Security Checks	1/13/2022	11/7/2024	critical
156738	RHEL 8 : firefox (RHSA-2022:0130)	Nessus	Red Hat Local Security Checks	1/13/2022	11/7/2024	critical
156961	Ubuntu 18.04 LTS / 20.04 LTS : Thunderbird vulnerabilities (USN-5248-1)	Nessus	Ubuntu Local Security Checks	1/22/2022	3/6/2025	critical

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