Microsoft introduced a new feature in Windows 10 known as Cloud Clipboard which, if enabled, will record data copied to the clipboard to the cloud, and make it available on other computers in certain scenarios. Applications that wish to prevent copied data from being recorded in Cloud History must use specific clipboard formats; and Firefox before versions 94 and ESR 91.3 did not implement them. This could have caused sensitive data to be recorded to a user's Microsoft account. *This bug only affects Firefox for Windows 10+ with Cloud Clipboard enabled. Other operating systems are unaffected.*. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

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

  - Microsoft introduced a new feature in Windows 10 known as Cloud Clipboard which, if enabled, will record     data copied to the clipboard to the cloud, and make it available on other computers in certain scenarios.
    Applications that wish to prevent copied data from being recorded in Cloud History must use specific     clipboard formats; and Firefox before versions 94 and ESR 91.3 did not implement them. This could have     caused sensitive data to be recorded to a user's Microsoft account. *This bug only affects Firefox for     Windows 10+ with Cloud Clipboard enabled. Other operating systems are unaffected.*. This vulnerability     affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3. (CVE-2021-38505)

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

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

  - 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)

  - Further techniques that built on the slipstream research combined with 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 < 85. (CVE-2021-23961)

  - A WebGL framebuffer was not initialized early enough, resulting in memory corruption and an out of bound
    write. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
    (CVE-2021-23994)

  - When Responsive Design Mode was enabled, it used references to objects that were previously freed. We
    presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability
    affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88. (CVE-2021-23995)

  - Through complicated navigations with new windows, an HTTP page could have inherited a secure lock icon
    from an HTTPS page. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
    (CVE-2021-23998)

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

  - 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)

  - Microsoft introduced a new feature in Windows 10 known as Cloud Clipboard which, if enabled, will record
    data copied to the clipboard to the cloud, and make it available on other computers in certain scenarios.
    Applications that wish to prevent copied data from being recorded in Cloud History must use specific
    clipboard formats; and Firefox before versions 94 and ESR 91.3 did not implement them. This could have
    caused sensitive data to be recorded to a user's Microsoft account. *This bug only affects Firefox for
    Windows 10+ with Cloud Clipboard enabled. Other operating systems are unaffected.*. This vulnerability
    affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3. (CVE-2021-38505)

  - 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 remote SUSE Linux SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2021:1635-1 advisory.

  - 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)

  - 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 accepted a newline in a HTTP/3 header, interpretting it as two separate headers. This     allowed for a header splitting attack against servers using HTTP/3. This vulnerability affects Firefox <     91.0.1 and Thunderbird < 91.0.1. (CVE-2021-29991)

  - crossbeam-deque is a package of work-stealing deques for building task schedulers when programming in     Rust. In versions prior to 0.7.4 and 0.8.0, the result of the race condition is that one or more tasks in     the worker queue can be popped twice instead of other tasks that are forgotten and never popped. If tasks     are allocated on the heap, this can cause double free and a memory leak. If not, this still can cause a     logical bug. Crates using `Stealer::steal`, `Stealer::steal_batch`, or `Stealer::steal_batch_and_pop` are     affected by this issue. This has been fixed in crossbeam-deque 0.8.1 and 0.7.4. (CVE-2021-32810)

  - When delegating navigations to the operating system, Firefox would accept the `mk` scheme which might     allow attackers to launch pages and execute scripts in Internet Explorer in unprivileged mode. *This bug     only affects Firefox for Windows. Other operating systems are unaffected.*. This vulnerability affects     Firefox < 92, Thunderbird < 91.1, Thunderbird < 78.14, Firefox ESR < 78.14, and Firefox ESR < 91.1.
    (CVE-2021-38492)

  - 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)

  - During operations on MessageTasks, a task may have been removed while it was still scheduled, resulting in     memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.15,     Thunderbird < 91.2, Firefox ESR < 91.2, Firefox ESR < 78.15, and Firefox < 93. (CVE-2021-38496)

  - Through use of reportValidity() and window.open(), a plain-text validation message could have been     overlaid on another origin, leading to possible user confusion and spoofing attacks. This vulnerability     affects Firefox < 93, Thunderbird < 91.2, and Firefox ESR < 91.2. (CVE-2021-38497)

  - During process shutdown, a document could have caused a use-after-free of a languages service object,     leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 93,     Thunderbird < 91.2, and Firefox ESR < 91.2. (CVE-2021-38498)

  - Mozilla developers reported memory safety bugs present in Firefox 92 and Firefox ESR 91.1. 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. This vulnerability affects Thunderbird < 78.15, Thunderbird < 91.2,     Firefox ESR < 91.2, Firefox ESR < 78.15, and Firefox < 93. (CVE-2021-38500)

  - Mozilla developers reported memory safety bugs present in Firefox 92 and Firefox ESR 91.1. 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. This vulnerability affects Firefox < 93, Thunderbird < 91.2, and     Firefox ESR < 91.2. (CVE-2021-38501)

  - Thunderbird ignored the configuration to require STARTTLS security for an SMTP connection. A MITM could     perform a downgrade attack to intercept transmitted messages, or could take control of the authenticated     session to execute SMTP commands chosen by the MITM. If an unprotected authentication method was     configured, the MITM could obtain the authentication credentials, too. This vulnerability affects     Thunderbird < 91.2. (CVE-2021-38502)

  - 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)

  - Microsoft introduced a new feature in Windows 10 known as Cloud Clipboard which, if enabled, will record     data copied to the clipboard to the cloud, and make it available on other computers in certain scenarios.
    Applications that wish to prevent copied data from being recorded in Cloud History must use specific     clipboard formats; and Firefox before versions 94 and ESR 91.3 did not implement them. This could have     caused sensitive data to be recorded to a user's Microsoft account. *This bug only affects Firefox for     Windows 10+ with Cloud Clipboard enabled. Other operating systems are unaffected.*. This vulnerability     affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3. (CVE-2021-38505)

  - 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)

  - The executable file warning was not presented when downloading .inetloc files, which, due to a flaw in Mac     OS, can run commands on a user's computer.*Note: This issue only affected Mac OS operating systems. Other     operating systems are unaffected.*. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and     Firefox ESR < 91.3. (CVE-2021-38510)

  - The ElGamal implementation in Botan through 2.18.1, as used in Thunderbird and other products, allows     plaintext recovery because, during interaction between two cryptographic libraries, a certain dangerous     combination of the prime defined by the receiver's public key, the generator defined by the receiver's     public key, and the sender's ephemeral exponents can lead to a cross-configuration attack against OpenPGP.
    (CVE-2021-40529)

  - Thunderbird unexpectedly enabled JavaScript in the composition area. The JavaScript execution context was     limited to this area and did not receive chrome-level privileges, but could be used as a stepping stone to     further an attack with other vulnerabilities. This vulnerability affects Thunderbird < 91.4.0.
    (CVE-2021-43528)

  - 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)

  - 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 SUSE Linux SLED15 / SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:4150-1 advisory.

    - Update to version 91.4 MFSA 2021-54 (bsc#1193485)
    - CVE-2021-43536: URL leakage when navigating while executing asynchronous function
    - CVE-2021-43537: Heap buffer overflow when using structured clone
    - CVE-2021-43538: Missing fullscreen and pointer lock notification when requesting both
    - CVE-2021-43539: GC rooting failure when calling wasm instance methods
    - CVE-2021-43541: External protocol handler parameters were unescaped
    - CVE-2021-43542: XMLHttpRequest error codes could have leaked the existence of an external protocol     handler
    - CVE-2021-43543: Bypass of CSP sandbox directive when embedding
    - CVE-2021-43545: Denial of Service when using the Location API in a loop
    - CVE-2021-43546: Cursor spoofing could overlay user interface when native cursor is zoomed
    - CVE-2021-43528: JavaScript unexpectedly enabled for the composition area

    - Update to version 91.3.2
    - CVE-2021-40529: Fixed ElGamal implementation could allow plaintext recovery (bsc#1190244)

    - Update to version 91.3 MFSA 2021-50 (bsc#1192250)
    - CVE-2021-38503: Fixed iframe sandbox rules did not apply to XSLT stylesheets
    - CVE-2021-38504: Fixed use-after-free in file picker dialog
    - CVE-2021-38505: Fixed Windows 10 Cloud Clipboard may have recorded sensitive user data
    - CVE-2021-38506: Fixed Thunderbird could be coaxed into going into fullscreen mode without notification     or warning
    - CVE-2021-38507: Fixed opportunistic Encryption in HTTP2 could be used to bypass the Same-Origin-Policy     on services hosted on other ports
    - CVE-2021-38508: Fixed permission Prompt could be overlaid, resulting in user confusion and potential     spoofing
    - CVE-2021-38509: Fixed Javascript alert box could have been spoofed onto an arbitrary domain
    - CVE-2021-38510: Fixed Download Protections were bypassed by .inetloc files on Mac OS
    - Fixed plain text reformatting regression (bsc#1182863)

    - Update to version 91.2 MFSA 2021-47 (bsc#1191332)
    - CVE-2021-29981: Live range splitting could have led to conflicting assignments in the JIT
    - CVE-2021-29982: Single bit data leak due to incorrect JIT optimization and type confusion
    - CVE-2021-29987: Users could have been tricked into accepting unwanted permissions on Linux
    - CVE-2021-32810: Data race in crossbeam-deque
    - CVE-2021-38493: Memory safety bugs fixed in Thunderbird 78.14 and Thunderbird 91.1
    - CVE-2021-38496: Use-after-free in MessageTask
    - CVE-2021-38497: Validation message could have been overlaid on another origin
    - CVE-2021-38498: Use-after-free of nsLanguageAtomService object
    - CVE-2021-38500: Memory safety bugs fixed in Thunderbird 91.2
    - CVE-2021-38501: Memory safety bugs fixed in Thunderbird 91.2
    - CVE-2021-38502: Downgrade attack on SMTP STARTTLS connections

    - Update to version 91.1.0 MFSA 2021-41 (bsc#1190269)
    - CVE-2021-38492: Navigating to `mk:` URL scheme could load Internet Explorer
    - CVE-2021-38495: Memory safety bugs fixed in Thunderbird 91.1

    - Update to version 91.0.1 MFSA 2021-37 (bsc#1189547)
    - CVE-2021-29991: Header Splitting possible with HTTP/3 Responses

Tenable has extracted the preceding description block directly from the SUSE 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 SUSE Linux SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2021:4150-1 advisory.

  - 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)

  - 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 accepted a newline in a HTTP/3 header, interpretting it as two separate headers. This     allowed for a header splitting attack against servers using HTTP/3. This vulnerability affects Firefox <     91.0.1 and Thunderbird < 91.0.1. (CVE-2021-29991)

  - crossbeam-deque is a package of work-stealing deques for building task schedulers when programming in     Rust. In versions prior to 0.7.4 and 0.8.0, the result of the race condition is that one or more tasks in     the worker queue can be popped twice instead of other tasks that are forgotten and never popped. If tasks     are allocated on the heap, this can cause double free and a memory leak. If not, this still can cause a     logical bug. Crates using `Stealer::steal`, `Stealer::steal_batch`, or `Stealer::steal_batch_and_pop` are     affected by this issue. This has been fixed in crossbeam-deque 0.8.1 and 0.7.4. (CVE-2021-32810)

  - When delegating navigations to the operating system, Firefox would accept the `mk` scheme which might     allow attackers to launch pages and execute scripts in Internet Explorer in unprivileged mode. *This bug     only affects Firefox for Windows. Other operating systems are unaffected.*. This vulnerability affects     Firefox < 92, Thunderbird < 91.1, Thunderbird < 78.14, Firefox ESR < 78.14, and Firefox ESR < 91.1.
    (CVE-2021-38492)

  - 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)

  - During operations on MessageTasks, a task may have been removed while it was still scheduled, resulting in     memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.15,     Thunderbird < 91.2, Firefox ESR < 91.2, Firefox ESR < 78.15, and Firefox < 93. (CVE-2021-38496)

  - Through use of reportValidity() and window.open(), a plain-text validation message could have been     overlaid on another origin, leading to possible user confusion and spoofing attacks. This vulnerability     affects Firefox < 93, Thunderbird < 91.2, and Firefox ESR < 91.2. (CVE-2021-38497)

  - During process shutdown, a document could have caused a use-after-free of a languages service object,     leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 93,     Thunderbird < 91.2, and Firefox ESR < 91.2. (CVE-2021-38498)

  - Mozilla developers reported memory safety bugs present in Firefox 92 and Firefox ESR 91.1. 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. This vulnerability affects Thunderbird < 78.15, Thunderbird < 91.2,     Firefox ESR < 91.2, Firefox ESR < 78.15, and Firefox < 93. (CVE-2021-38500)

  - Mozilla developers reported memory safety bugs present in Firefox 92 and Firefox ESR 91.1. 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. This vulnerability affects Firefox < 93, Thunderbird < 91.2, and     Firefox ESR < 91.2. (CVE-2021-38501)

  - Thunderbird ignored the configuration to require STARTTLS security for an SMTP connection. A MITM could     perform a downgrade attack to intercept transmitted messages, or could take control of the authenticated     session to execute SMTP commands chosen by the MITM. If an unprotected authentication method was     configured, the MITM could obtain the authentication credentials, too. This vulnerability affects     Thunderbird < 91.2. (CVE-2021-38502)

  - 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)

  - Microsoft introduced a new feature in Windows 10 known as Cloud Clipboard which, if enabled, will record     data copied to the clipboard to the cloud, and make it available on other computers in certain scenarios.
    Applications that wish to prevent copied data from being recorded in Cloud History must use specific     clipboard formats; and Firefox before versions 94 and ESR 91.3 did not implement them. This could have     caused sensitive data to be recorded to a user's Microsoft account. *This bug only affects Firefox for     Windows 10+ with Cloud Clipboard enabled. Other operating systems are unaffected.*. This vulnerability     affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3. (CVE-2021-38505)

  - 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)

  - The executable file warning was not presented when downloading .inetloc files, which, due to a flaw in Mac     OS, can run commands on a user's computer.*Note: This issue only affected Mac OS operating systems. Other     operating systems are unaffected.*. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and     Firefox ESR < 91.3. (CVE-2021-38510)

  - The ElGamal implementation in Botan through 2.18.1, as used in Thunderbird and other products, allows     plaintext recovery because, during interaction between two cryptographic libraries, a certain dangerous     combination of the prime defined by the receiver's public key, the generator defined by the receiver's     public key, and the sender's ephemeral exponents can lead to a cross-configuration attack against OpenPGP.
    (CVE-2021-40529)

  - Thunderbird unexpectedly enabled JavaScript in the composition area. The JavaScript execution context was     limited to this area and did not receive chrome-level privileges, but could be used as a stepping stone to     further an attack with other vulnerabilities. This vulnerability affects Thunderbird < 91.4.0.
    (CVE-2021-43528)

  - 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)

  - 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 SUSE Linux SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2021:3745-1 advisory.

  - 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.  (CVE-2021-38503)

  - When interacting with an HTML input element's file picker dialog with <code>webkitdirectory</code> set, a     use-after-free could have resulted, leading to memory corruption and a potentially exploitable crash.
    (CVE-2021-38504)

  - Microsoft introduced a new feature in Windows 10 known as Cloud Clipboard which, if enabled, will record     data copied to the clipboard to the cloud, and make it available on other computers in certain scenarios.
    Applications that wish to prevent copied data from being recorded in Cloud History must use specific     clipboard formats; and Firefox before versions 94 and ESR 91.3 did not implement them. This could have     caused sensitive data to be recorded to a user's Microsoft account. This bug only affects Firefox for     Windows 10+ with Cloud Clipboard enabled. Other operating systems are unaffected.  (CVE-2021-38505)

  - 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.
    (CVE-2021-38506)

  - Mozilla: Opportunistic Encryption in HTTP2 could be used to bypass the Same-Origin-Policy on services     hosted on other ports (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.  (CVE-2021-38508)

  - Mozilla: Javascript alert box could have been spoofed onto an arbitrary domain (CVE-2021-38509)

  - The executable file warning was not presented when downloading .inetloc files, which can run commands on a     user's computer. Note: This issue only affected Mac OS operating systems. Other operating systems are     unaffected.  (CVE-2021-38510)

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

The remote SUSE Linux SLED15 / SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3745-1 advisory.

    MozillaFirefox was updated to Extended Support Release 91.3.0 ESR

    * Fixed: Various stability, functionality, and security fixes

    MFSA 2021-49 (bsc#1192250)

      * CVE-2021-38503: iframe sandbox rules did not apply to XSLT stylesheets
      * CVE-2021-38504: Use-after-free in file picker dialog
      * CVE-2021-38505: Windows 10 Cloud Clipboard may have recorded sensitive user data
      * CVE-2021-38506: Firefox could be coaxed into going into fullscreen mode without notification or     warning
      * CVE-2021-38507: Opportunistic Encryption in HTTP2 could be used to bypass the Same-Origin-Policy on     services hosted on other ports
      * CVE-2021-38508: Permission Prompt could be overlaid, resulting in user confusion and potential     spoofing
      * CVE-2021-38509: Javascript alert box could have been spoofed onto an arbitrary domain
      * CVE-2021-38510: Download Protections were bypassed by .inetloc files on Mac OS
      * MOZ-2021-0008: Use-after-free in HTTP2 Session object
      * MOZ-2021-0007: Memory safety bugs fixed in Firefox 94 and Firefox ESR 91.3

Tenable has extracted the preceding description block directly from the SUSE 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 SUSE Linux SLED12 / SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3721-1 advisory.

    MozillaFirefox was updated to Extended Support Release 91.3.0 ESR

    * Fixed: Various stability, functionality, and security fixes

    MFSA 2021-49 (bsc#1192250)

      * CVE-2021-38503: iframe sandbox rules did not apply to XSLT stylesheets
      * CVE-2021-38504: Use-after-free in file picker dialog
      * CVE-2021-38505: Windows 10 Cloud Clipboard may have recorded sensitive user data
      * CVE-2021-38506: Firefox could be coaxed into going into fullscreen mode without notification or     warning
      * CVE-2021-38507: Opportunistic Encryption in HTTP2 could be used to bypass the Same-Origin-Policy on     services hosted on other ports
      * CVE-2021-38508: Permission Prompt could be overlaid, resulting in user confusion and potential     spoofing
      * CVE-2021-38509: Javascript alert box could have been spoofed onto an arbitrary domain
      * CVE-2021-38510: Download Protections were bypassed by .inetloc files on Mac OS
      * MOZ-2021-0008: Use-after-free in HTTP2 Session object
      * MOZ-2021-0007: Memory safety bugs fixed in Firefox 94 and Firefox ESR 91.3

Tenable has extracted the preceding description block directly from the SUSE 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 SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3651-1 advisory.

    MozillaFirefox was updated to Extended Support Release 91.3.0 ESR

    * Fixed: Various stability, functionality, and security fixes

    MFSA 2021-49 (bsc#1192250)

      * CVE-2021-38503: iframe sandbox rules did not apply to XSLT stylesheets
      * CVE-2021-38504: Use-after-free in file picker dialog
      * CVE-2021-38505: Windows 10 Cloud Clipboard may have recorded sensitive user data
      * CVE-2021-38506: Firefox could be coaxed into going into fullscreen mode without notification or     warning
      * CVE-2021-38507: Opportunistic Encryption in HTTP2 could be used to bypass the Same-Origin-Policy on     services hosted on other ports
      * CVE-2021-38508: Permission Prompt could be overlaid, resulting in user confusion and potential     spoofing
      * CVE-2021-38509: Javascript alert box could have been spoofed onto an arbitrary domain
      * CVE-2021-38510: Download Protections were bypassed by .inetloc files on Mac OS
      * MOZ-2021-0008: Use-after-free in HTTP2 Session object
      * MOZ-2021-0007: Memory safety bugs fixed in Firefox 94 and Firefox ESR 91.3

Tenable has extracted the preceding description block directly from the SUSE 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 version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 91.3. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2021-50 advisory.

  - 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. (CVE-2021-38503)

  - Thunderbird versions prior to 91.3.0 are vulnerable to the heap overflow described in CVE-2021-43527 when     processing S/MIME messages. Thunderbird versions 91.3.0 and later will not call the vulnerable code when     processing S/MIME messages that contain certificates with DER-encoded DSA or RSA-PSS signatures. Note:
    This advisory was added on January 17, 2023 after discovering it was inadvertently left out of the     original advisory. The fix was included in the original release of Thunderbird 91.3. (CVE-2021-43529)

  - When interacting with an HTML input element's file picker dialog with <code>webkitdirectory</code> set, a     use-after-free could have resulted, leading to memory corruption and a potentially exploitable crash.
    (CVE-2021-38504)

  - Microsoft introduced a new feature in Windows 10 known as Cloud Clipboard which, if enabled, will record     data copied to the clipboard to the cloud, and make it available on other computers in certain scenarios.
    Applications that wish to prevent copied data from being recorded in Cloud History must use specific     clipboard formats; and Thunderbird before version 91.3 did not implement them. This could have caused     sensitive data to be recorded to a user's Microsoft account. This bug only affects Thunderbird for Windows     10+ with Cloud Clipboard enabled. Other operating systems are unaffected. (CVE-2021-38505)

  - Through a series of web navigations, Thunderbird could have entered fullscreen mode without notification     or warning to the user. This could lead to spoofing attacks on the browser UI including phishing.
    (CVE-2021-38506)

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 91.3. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2021-50 advisory.

  - 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. (CVE-2021-38503)

  - Thunderbird versions prior to 91.3.0 are vulnerable to the heap overflow described in CVE-2021-43527 when     processing S/MIME messages. Thunderbird versions 91.3.0 and later will not call the vulnerable code when     processing S/MIME messages that contain certificates with DER-encoded DSA or RSA-PSS signatures. Note:
    This advisory was added on January 17, 2023 after discovering it was inadvertently left out of the     original advisory. The fix was included in the original release of Thunderbird 91.3. (CVE-2021-43529)

  - When interacting with an HTML input element's file picker dialog with <code>webkitdirectory</code> set, a     use-after-free could have resulted, leading to memory corruption and a potentially exploitable crash.
    (CVE-2021-38504)

  - Microsoft introduced a new feature in Windows 10 known as Cloud Clipboard which, if enabled, will record     data copied to the clipboard to the cloud, and make it available on other computers in certain scenarios.
    Applications that wish to prevent copied data from being recorded in Cloud History must use specific     clipboard formats; and Thunderbird before version 91.3 did not implement them. This could have caused     sensitive data to be recorded to a user's Microsoft account. This bug only affects Thunderbird for Windows     10+ with Cloud Clipboard enabled. Other operating systems are unaffected. (CVE-2021-38505)

  - Through a series of web navigations, Thunderbird could have entered fullscreen mode without notification     or warning to the user. This could lead to spoofing attacks on the browser UI including phishing.
    (CVE-2021-38506)

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 94.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2021-48 advisory.

  - 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. (CVE-2021-38503)

  - When interacting with an HTML input element's file picker dialog with <code>webkitdirectory</code> set, a     use-after-free could have resulted, leading to memory corruption and a potentially exploitable crash.
    (CVE-2021-38504)

  - Microsoft introduced a new feature in Windows 10 known as Cloud Clipboard which, if enabled, will record     data copied to the clipboard to the cloud, and make it available on other computers in certain scenarios.
    Applications that wish to prevent copied data from being recorded in Cloud History must use specific     clipboard formats; and Firefox before versions 94 and ESR 91.3 did not implement them. This could have     caused sensitive data to be recorded to a user's Microsoft account. This bug only affects Firefox for     Windows 10+ with Cloud Clipboard enabled. Other operating systems are unaffected. (CVE-2021-38505)

  - 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.
    (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.
    (CVE-2021-38507)

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 Windows host is prior to 94.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2021-48 advisory.

  - 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. (CVE-2021-38503)

  - When interacting with an HTML input element's file picker dialog with <code>webkitdirectory</code> set, a     use-after-free could have resulted, leading to memory corruption and a potentially exploitable crash.
    (CVE-2021-38504)

  - Microsoft introduced a new feature in Windows 10 known as Cloud Clipboard which, if enabled, will record     data copied to the clipboard to the cloud, and make it available on other computers in certain scenarios.
    Applications that wish to prevent copied data from being recorded in Cloud History must use specific     clipboard formats; and Firefox before versions 94 and ESR 91.3 did not implement them. This could have     caused sensitive data to be recorded to a user's Microsoft account. This bug only affects Firefox for     Windows 10+ with Cloud Clipboard enabled. Other operating systems are unaffected. (CVE-2021-38505)

  - 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.
    (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.
    (CVE-2021-38507)

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 ESR installed on the remote Windows host is prior to 91.3. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2021-49 advisory.

  - 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. (CVE-2021-38503)

  - When interacting with an HTML input element's file picker dialog with <code>webkitdirectory</code> set, a     use-after-free could have resulted, leading to memory corruption and a potentially exploitable crash.
    (CVE-2021-38504)

  - Microsoft introduced a new feature in Windows 10 known as Cloud Clipboard which, if enabled, will record     data copied to the clipboard to the cloud, and make it available on other computers in certain scenarios.
    Applications that wish to prevent copied data from being recorded in Cloud History must use specific     clipboard formats; and Firefox before versions 94 and ESR 91.3 did not implement them. This could have     caused sensitive data to be recorded to a user's Microsoft account. This bug only affects Firefox for     Windows 10+ with Cloud Clipboard enabled. Other operating systems are unaffected. (CVE-2021-38505)

  - 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.
    (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.
    (CVE-2021-38507)

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 ESR installed on the remote macOS or Mac OS X host is prior to 91.3. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2021-49 advisory.

  - 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. (CVE-2021-38503)

  - When interacting with an HTML input element's file picker dialog with <code>webkitdirectory</code> set, a     use-after-free could have resulted, leading to memory corruption and a potentially exploitable crash.
    (CVE-2021-38504)

  - Microsoft introduced a new feature in Windows 10 known as Cloud Clipboard which, if enabled, will record     data copied to the clipboard to the cloud, and make it available on other computers in certain scenarios.
    Applications that wish to prevent copied data from being recorded in Cloud History must use specific     clipboard formats; and Firefox before versions 94 and ESR 91.3 did not implement them. This could have     caused sensitive data to be recorded to a user's Microsoft account. This bug only affects Firefox for     Windows 10+ with Cloud Clipboard enabled. Other operating systems are unaffected. (CVE-2021-38505)

  - 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.
    (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.
    (CVE-2021-38507)

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	Severity
245815	Linux Distros Unpatched Vulnerability : CVE-2021-38505	Nessus	Misc.	medium
427104	Alpine: thunderbird: security update to 91.3.2-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	critical
427104	Alpine: thunderbird: security update to 91.3.2-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	critical
426351	Alpine: multiple librewolf packages: security update to 94.0-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	critical
426351	Alpine: multiple librewolf packages: security update to 94.0-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	critical
404457	Alpine: multiple firefox-esr packages: security update to 91.3.0-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	critical
404457	Alpine: multiple firefox-esr packages: security update to 91.3.0-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	critical
404386	Alpine: multiple firefox packages: security update to 94.0-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	critical
404386	Alpine: multiple firefox packages: security update to 94.0-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	critical
156395	openSUSE 15 Security Update : MozillaThunderbird (openSUSE-SU-2021:1635-1)	Nessus	SuSE Local Security Checks	critical
156292	SUSE SLED15: MozillaThunderbird / MozillaThunderbird-translations-common / etc (SUSE-SU-2021:4150-1)	Nessus	SuSE Local Security Checks	critical
156271	openSUSE 15 Security Update : MozillaThunderbird (openSUSE-SU-2021:4150-1)	Nessus	SuSE Local Security Checks	critical
155656	openSUSE 15 Security Update : MozillaFirefox (openSUSE-SU-2021:3745-1)	Nessus	SuSE Local Security Checks	critical
155644	SUSE SLED15: MozillaFirefox / MozillaFirefox-devel / etc (SUSE-SU-2021:3745-1)	Nessus	SuSE Local Security Checks	critical
155575	SUSE SLED12: MozillaFirefox / MozillaFirefox-devel / etc (SUSE-SU-2021:3721-1)	Nessus	SuSE Local Security Checks	critical
155157	SUSE SLES15: MozillaFirefox / MozillaFirefox-devel / etc (SUSE-SU-2021:3651-1)	Nessus	SuSE Local Security Checks	critical
154876	Mozilla Thunderbird < 91.3	Nessus	MacOS X Local Security Checks	critical
154875	Mozilla Thunderbird < 91.3	Nessus	Windows	critical
154820	Mozilla Firefox < 94.0	Nessus	MacOS X Local Security Checks	critical
154819	Mozilla Firefox < 94.0	Nessus	Windows	critical
154817	Mozilla Firefox ESR < 91.3	Nessus	Windows	critical
154816	Mozilla Firefox ESR < 91.3	Nessus	MacOS X Local Security Checks	critical

Detections

Analytics

CVE-2021-38505

medium

Tenable Plugins

medium

critical

critical

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critical

critical

critical

critical

critical

critical

critical

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critical

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critical