The version of Firefox ESR installed on the remote macOS or Mac OS X host is prior to 115.2. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2023-36 advisory.

  - Memory safety bugs present in Firefox 116, Firefox ESR 115.1, and Thunderbird 115.1. Some of these bugs     showed evidence of memory corruption and we presume that with enough effort some of these could have been     exploited to run arbitrary code. (CVE-2023-4585)

  - When receiving rendering data over IPC <code>mStream</code> could have been destroyed when initialized,     which could have led to a use-after-free causing a potentially exploitable crash. (CVE-2023-4573)

  - When creating a callback over IPC for showing the Color Picker window, multiple of the same callbacks     could have been created at a time and eventually all simultaneously destroyed as soon as one of the     callbacks finished. This could have led to a use-after-free causing a potentially exploitable crash.
    (CVE-2023-4574)

  - When creating a callback over IPC for showing the File Picker window, multiple of the same callbacks could     have been created at a time and eventually all simultaneously destroyed as soon as one of the callbacks     finished. This could have led to a use-after-free causing a potentially exploitable crash. (CVE-2023-4575)

  - On Windows, an integer overflow could occur in <code>RecordedSourceSurfaceCreation</code> which resulted     in a heap buffer overflow potentially leaking sensitive data that could have led to a sandbox escape. This     bug only affects Firefox on Windows. Other operating systems are unaffected. (CVE-2023-4576)

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 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6320-1 advisory.

    Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially     crafted website, an attacker could potentially exploit these to cause a denial of service, obtain     sensitive information across domains, or execute arbitrary code. (CVE-2023-4573, CVE-2023-4574,     CVE-2023-4575, CVE-2023-4578, CVE-2023-4581, CVE-2023-4583, CVE-2023-4584, CVE-2023-4585)

    Lukas Bernhard discovered that Firefox did not properly manage memory when the UpdateRegExpStatics     attempted to access initialStringHeap. An attacker could potentially exploit this issue to cause a     denial of service. (CVE-2023-4577)

    Malte Jrgens discovered that Firefox did not properly handle search queries if the search query itself     was a well formed URL. An attacker could potentially exploit this issue to perform spoofing attacks.
    (CVE-2023-4579)

    Harveer Singh discovered that Firefox did not properly handle push notifications stored on disk in private     browsing mode. An attacker could potentially exploits this issue to access sensitive information.
    (CVE-2023-4580)

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.

The version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 115.2. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2023-38 advisory.

  - Memory safety bugs present in Firefox 116, Firefox ESR 115.1, and Thunderbird 115.1. Some of these bugs     showed evidence of memory corruption and we presume that with enough effort some of these could have been     exploited to run arbitrary code. (CVE-2023-4585)

  - When receiving rendering data over IPC <code>mStream</code> could have been destroyed when initialized,     which could have led to a use-after-free causing a potentially exploitable crash. (CVE-2023-4573)

  - When creating a callback over IPC for showing the Color Picker window, multiple of the same callbacks     could have been created at a time and eventually all simultaneously destroyed as soon as one of the     callbacks finished. This could have led to a use-after-free causing a potentially exploitable crash.
    (CVE-2023-4574)

  - When creating a callback over IPC for showing the File Picker window, multiple of the same callbacks could     have been created at a time and eventually all simultaneously destroyed as soon as one of the callbacks     finished. This could have led to a use-after-free causing a potentially exploitable crash. (CVE-2023-4575)

  - On Windows, an integer overflow could occur in <code>RecordedSourceSurfaceCreation</code> which resulted     in a heap buffer overflow potentially leaking sensitive data that could have led to a sandbox escape. This     bug only affects Firefox on Windows. Other operating systems are unaffected. (CVE-2023-4576)

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-2023-4954 advisory.

    [102.15.0-1.0.1]
    - Update to 102.15.0 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 MiracleLinux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2023-6386:24 advisory.

    * Mozilla: Memory corruption in IPC CanvasTranslator (CVE-2023-4573)
      * Mozilla: Memory corruption in IPC ColorPickerShownCallback (CVE-2023-4574)
      * Mozilla: Memory corruption in IPC FilePickerShownCallback (CVE-2023-4575)
      * Mozilla: Memory corruption in JIT UpdateRegExpStatics (CVE-2023-4577)
      * Mozilla: Memory safety bugs fixed in Firefox 117, Firefox ESR 102.15, Firefox ESR 115.2, Thunderbird     102.15, and Thunderbird 115.2 (CVE-2023-4584)
      * Mozilla: Memory safety bugs fixed in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2     (CVE-2023-4585)
      * Mozilla: Full screen notification obscured by file open dialog (CVE-2023-4051)
      * Mozilla: Full screen notification obscured by external program (CVE-2023-4053)
      * Mozilla: Error reporting methods in SpiderMonkey could have triggered an Out of Memory Exception     (CVE-2023-4578)
      * Mozilla: Push notifications saved to disk unencrypted (CVE-2023-4580)
      * Mozilla: XLL file extensions were downloadable without warnings (CVE-2023-4581)
      * Mozilla: Browsing Context potentially not cleared when closing Private Window (CVE-2023-4583)

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 NewStart CGSL host, running version MAIN 6.02, has firefox packages installed that are affected by multiple vulnerabilities:

  - In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames. (CVE-2022-25315)

  - 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)

  - 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)

  - 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)

  - 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)

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 Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2024:0450 advisory.

    Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

    CVE-2023-3417:
    Thunderbird allowed the Text Direction Override Unicode Character in filenames. An email attachment could     be incorrectly shown as being a document file, while in  fact it was an executable file. Newer versions of     Thunderbird will strip the character and show the correct file extension. This vulnerability affects     Thunderbird < 115.0.1 and Thunderbird < 102.13.1.

    CVE-2023-29479:
    Ribose RNP before 0.16.3 may hang when the input is malformed.

    CVE-2023-28427:
    matrix-js-sdk is a Matrix messaging protocol Client-Server SDK for JavaScript. In versions prior to 24.0.0     events sent with special strings in key places can temporarily disrupt or impede the matrix-js-sdk from     functioning properly, potentially impacting the consumer/'s ability to process data safely. Note that the     matrix-js-sdk can appear to be operating normally but be excluding or corrupting runtime data presented to     the consumer. This vulnerability is distinct from GHSA-rfv9-x7hh-xc32 which covers a similar issue. The     issue has been patched in matrix-js-sdk 24.0.0 and users are advised to upgrade. There are no known     workarounds for this vulnerability.

    CVE-2023-1945:
    Unexpected data returned from the Safe Browsing API could have led to memory corruption and a potentially     exploitable crash. This vulnerability affects Thunderbird < 102.10 and Firefox ESR < 102.10.

    CVE-2023-0547:
    OCSP revocation status of recipient certificates was not checked when sending S/Mime encrypted email, and     revoked certificates would be accepted. Thunderbird versions from 68 to 102.9.1 were affected by this bug.
    This vulnerability affects Thunderbird < 102.10.

    CVE-2023-44488:
    VP9 in libvpx before 1.13.1 mishandles widths, leading to a crash related to encoding.

    CVE-2023-32206:
    An out-of-bound read could have led to a crash in the RLBox Expat driver. This vulnerability affects     Firefox < 113, Firefox ESR < 102.11, and Thunderbird < 102.11.

    CVE-2023-32205:
    In multiple cases browser prompts could have been obscured by popups controlled by content. These could     have led to potential user confusion and spoofing attacks. This vulnerability affects Firefox < 113,     Firefox ESR < 102.11, and Thunderbird < 102.11.

    CVE-2023-32211:
    A type checking bug would have led to invalid code being compiled. This vulnerability affects Firefox <     113, Firefox ESR < 102.11, and Thunderbird < 102.11.

    CVE-2023-32207:
    A missing delay in popup notifications could have made it possible for an attacker to trick a user into     granting permissions. This vulnerability affects Firefox < 113, Firefox ESR < 102.11, and Thunderbird <     102.11.

    CVE-2023-32212:
    An attacker could have positioned a <code>datalist</code> element to obscure the address bar. This     vulnerability affects Firefox < 113, Firefox ESR < 102.11, and Thunderbird < 102.11.

    CVE-2023-32213:
    When reading a file, an uninitialized value could have been used as read limit. This vulnerability affects     Firefox < 113, Firefox ESR < 102.11, and Thunderbird < 102.11.

    CVE-2023-32215:
    Mozilla developers and community members Gabriele Svelto, Andrew Osmond, Emily McDonough, Sebastian     Hengst, Andrew McCreight and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 112     and Firefox ESR 102.10. 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 < 113, Firefox ESR < 102.11, and Thunderbird < 102.11.

    CVE-2023-37201:
    An attacker could have triggered a use-after-free condition when creating a WebRTC connection over HTTPS.
    This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13.

    CVE-2023-37202:
    Cross-compartment wrappers wrapping a scripted proxy could have caused objects from other compartments to     be stored in the main compartment resulting in a use-after-free. This vulnerability affects Firefox < 115,     Firefox ESR < 102.13, and Thunderbird < 102.13.

    CVE-2023-37207:
    A website could have obscured the fullscreen notification by using a URL with a scheme handled by an     external program, such as a mailto URL. This could have led to user confusion and possible spoofing     attacks. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13.

    CVE-2023-4055:
    When the number of cookies per domain was exceeded in `document.cookie`, the actual cookie jar sent to the     host was no longer consistent with expected cookie jar state. This could have caused requests to be sent     with some cookies missing. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR     < 115.1.

    CVE-2023-4574:
    When creating a callback over IPC for showing the Color Picker window, multiple of the same callbacks     could have been created at a time and eventually all simultaneously destroyed as soon as one of the     callbacks finished. This could have led to a use-after-free causing a potentially exploitable crash. This     vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, and Thunderbird < 115.2.

    CVE-2023-4573:
    When receiving rendering data over IPC `mStream` could have been destroyed when initialized, which could     have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox <     117, Firefox ESR < 102.15, Firefox ESR < 115.2, and Thunderbird < 115.2.

    CVE-2023-4581:
    Excel `.xll` add-in files did not have a blocklist entry in Firefox's executable blocklist which allowed     them to be downloaded without any warning of their potential harm. This vulnerability affects Firefox <     117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.

    CVE-2023-4045:
    Offscreen Canvas did not properly track cross-origin tainting, which could have been used to access image     data from another site in violation of same-origin policy. This vulnerability affects Firefox < 116,     Firefox ESR < 102.14, and Firefox ESR < 115.1.

    CVE-2023-4053:
    A website could have obscured the full screen notification by using a URL with a scheme handled by an     external program, such as a mailto URL. This could have led to user confusion and possible spoofing     attacks. This vulnerability affects Firefox < 116, Firefox ESR < 115.2, and Thunderbird < 115.2.

    CVE-2023-4580:
    Push notifications stored on disk in private browsing mode were not being encrypted potentially allowing     the leak of sensitive information. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and     Thunderbird < 115.2.

    CVE-2023-4051:
    A website could have obscured the full screen notification by using the file open dialog. This could have     led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 116, Firefox ESR     < 115.2, and Thunderbird < 115.2.

    CVE-2023-4578:
    When calling `JS::CheckRegExpSyntax` a Syntax Error could have been set which would end in calling     `convertToRuntimeErrorAndClear`. A path in the function could attempt to allocate memory when none is     available which would have caused a newly created Out of Memory exception to be mishandled as a Syntax     Error. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.

    CVE-2023-4049:
    Race conditions in reference counting code were found through code inspection. These could have resulted     in potentially exploitable use-after-free vulnerabilities. This vulnerability affects Firefox < 116,     Firefox ESR < 102.14, and Firefox ESR < 115.1.

    CVE-2023-4046:
    In some circumstances, a stale value could have been used for a global variable in WASM JIT analysis. This     resulted in incorrect compilation and a potentially exploitable crash in the content process. This     vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.

    CVE-2023-4050:
    In some cases, an untrusted input stream was copied to a stack buffer without checking its size. This     resulted in a potentially exploitable crash which could have led to a sandbox escape. This vulnerability     affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.

    CVE-2023-29536:
    An attacker could cause the memory manager to incorrectly free a pointer that addresses attacker-     controlled memory, resulting in an assertion, memory corruption, or a potentially exploitable crash. This     vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android <     112, and Thunderbird < 102.10.

    CVE-2023-29548:
    A wrong lowering instruction in the ARM64 Ion compiler resulted in a wrong optimization result. This     vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android <     112, and Thunderbird < 102.10.

    CVE-2023-29541:
    Firefox did not properly handle downloads of files ending in <code>.desktop</code>, which can be     interpreted to run attacker-controlled commands. <br>*This bug only affects Firefox for Linux on certain     Distributions. Other operating systems are unaffected, and Mozilla is unable to enumerate all affected     Linux Distributions.*. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR <     102.10, Firefox for Android < 112, and Thunderbird < 102.10.

    CVE-2023-29550:
    Mozilla developers Randell Jesup, Andrew Osmond, Sebastian Hengst, Andrew McCreight, and the Mozilla     Fuzzing Team reported memory safety bugs present in Firefox 111 and Firefox ESR 102.9. 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 < 112, Focus for Android < 112,     Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10.

    CVE-2023-4048:
    An out-of-bounds read could have led to an exploitable crash when parsing HTML with DOMParser in low     memory situations. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR <     115.1.

    CVE-2023-4047:
    A bug in popup notifications delay calculation could have made it possible for an attacker to trick a user     into granting permissions. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR     < 115.1.

    CVE-2023-5730:
    Memory safety bugs present in Firefox 118, Firefox ESR 115.3, and Thunderbird 115.3. 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 < 119 and Firefox ESR < 115.4.
    The Mozilla Foundation Security Advisory describes this flaw as:
    Memory safety bugs present in Firefox 118, Firefox ESR 115.3, and Thunderbird 115.3. 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.

    CVE-2023-4863:
    Heap buffer overflow in WebP in Google Chrome prior to 116.0.5845.187 allowed a remote attacker to perform     an out of bounds memory write via a crafted HTML page. (Chromium security severity: Critical)

    CVE-2023-4585:
    Memory safety bugs present in Firefox 116, Firefox ESR 115.1, and Thunderbird 115.1. 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 < 117, Firefox ESR < 115.2, and     Thunderbird < 115.2.

    CVE-2023-4584:
    Memory safety bugs present in Firefox 116, Firefox ESR 102.14, Firefox ESR 115.1, Thunderbird 102.14, and     Thunderbird 115.1. 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 <     117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.

    CVE-2023-4583:
    When checking if the Browsing Context had been discarded in `HttpBaseChannel`, if the load group was not     available then it was assumed to have already been discarded which was not always the case for private     channels after the private session had ended. This vulnerability affects Firefox < 117, Firefox ESR <     115.2, and Thunderbird < 115.2.

    CVE-2023-4577:
    When `UpdateRegExpStatics` attempted to access `initialStringHeap` it could already have been garbage     collected prior to entering the function, which could potentially have led to an exploitable crash. This     vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.

    CVE-2023-4575:
    When creating a callback over IPC for showing the File Picker window, multiple of the same callbacks could     have been created at a time and eventually all simultaneously destroyed as soon as one of the callbacks     finished. This could have led to a use-after-free causing a potentially exploitable crash. This     vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, and Thunderbird < 115.2.

    CVE-2023-4057:
    Memory safety bugs present in Firefox 115, Firefox ESR 115.0, and Thunderbird 115.0. 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 Firefox < 116, Firefox ESR < 115.1, and     Thunderbird < 115.1.

    CVE-2023-37211:
    Memory safety bugs present in Firefox 114, Firefox ESR 102.12, and Thunderbird 102.12. 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 Firefox < 115, Firefox ESR < 102.13, and     Thunderbird < 102.13.

    CVE-2023-4056:
    Memory safety bugs present in Firefox 115, Firefox ESR 115.0, Firefox ESR 102.13, Thunderbird 115.0, and     Thunderbird 102.13. 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 < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.

    CVE-2023-37208:
    When opening Diagcab files, Firefox did not warn the user that these files may contain malicious code.
    This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13.

    CVE-2023-34416:
    Memory safety bugs present in Firefox 113, Firefox ESR 102.11, and Thunderbird 102.12. 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 Firefox ESR < 102.12, Firefox < 114, and     Thunderbird < 102.12.

    CVE-2023-34414:
    The error page for sites with invalid TLS certificates was missing the     activation-delay Firefox uses to protect prompts and permission dialogs     from attacks that exploit human response time delays. If a malicious     page elicited user clicks in precise locations immediately before     navigating to a site with a certificate error and made the renderer     extremely busy at the same time, it could create a gap between when     the error page was loaded and when the display actually refreshed.
    With the right timing the elicited clicks could land in that gap and     activate the button that overrides the certificate error for that site. This vulnerability affects Firefox     ESR < 102.12, Firefox < 114, and Thunderbird < 102.12.

    CVE-2023-29539:
    When handling the filename directive in the Content-Disposition header, the filename would be truncated if     the filename contained a NULL character. This could have led to reflected file download attacks     potentially tricking users to install malware. This vulnerability affects Firefox < 112, Focus for Android     < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10.

    CVE-2023-29535:
    Following a Garbage Collector compaction, weak maps may have been accessed before they were correctly     traced. This resulted in memory corruption and a potentially exploitable crash. This vulnerability affects     Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird <     102.10.

    CVE-2023-29533:
    A website could have obscured the fullscreen notification by using a combination of     <code>window.open</code>, fullscreen requests, <code>window.name</code> assignments, and     <code>setInterval</code> calls. This could have led to user confusion and possible spoofing attacks. This     vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android <     112, and Thunderbird < 102.10.

    CVE-2023-1999:
    There exists a use after free/double free in libwebp. An attacker can use theApplyFiltersAndEncode()     function and loop through to free best.bw and assign best = trial pointer. The second loop will then     return 0 because of an Out of memory error in VP8 encoder, the pointer is still assigned to trial and the     AddressSanitizer will attempt a double free.

Tenable has extracted the preceding description block directly from the Tencent 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 AlmaLinux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the ALSA-2023:4952 advisory.

  - A website could have obscured the full screen notification by using the file open dialog. This could have     led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 116.
    (CVE-2023-4051)

  - A website could have obscured the full screen notification by using a URL with a scheme handled by an     external program, such as a mailto URL. This could have led to user confusion and possible spoofing     attacks. This vulnerability affects Firefox < 116. (CVE-2023-4053)

  - When receiving rendering data over IPC <code>mStream</code> could have been destroyed when initialized,     which could have led to a use-after-free causing a potentially exploitable crash.  (CVE-2023-4573)

  - When creating a callback over IPC for showing the Color Picker window, multiple of the same callbacks     could have been created at a time and eventually all simultaneously destroyed as soon as one of the     callbacks finished. This could have led to a use-after-free causing a potentially exploitable crash.
    (CVE-2023-4574)

  - When creating a callback over IPC for showing the File Picker window, multiple of the same callbacks could     have been created at a time and eventually all simultaneously destroyed as soon as one of the callbacks     finished. This could have led to a use-after-free causing a potentially exploitable crash.
    (CVE-2023-4575)

  - When <code>UpdateRegExpStatics</code> attempted to access <code>initialStringHeap</code> it could already     have been garbage collected prior to entering the function, which could potentially have led to an     exploitable crash.  (CVE-2023-4577)

  - When calling <code>JS::CheckRegExpSyntax</code> a Syntax Error could have been set which would end in     calling <code>convertToRuntimeErrorAndClear</code>. A path in the function could attempt to allocate     memory when none is available which would have caused a newly created Out of Memory exception to be     mishandled as a Syntax Error.  (CVE-2023-4578)

  - Push notifications stored on disk in private browsing mode were not being encrypted potentially allowing     the leak of sensitive information.  (CVE-2023-4580)

  - Excel <code>.xll</code> add-in files did not have a blocklist entry in Firefox's executable blocklist     which allowed them to be downloaded without any warning of their potential harm.  (CVE-2023-4581)

  - Memory safety bugs present in Firefox 116, Firefox ESR 102.14, Firefox ESR 115.1, Thunderbird 102.14, and     Thunderbird 115.1. Some of these bugs showed evidence of memory corruption and we presume that with enough     effort some of these could have been exploited to run arbitrary code.  (CVE-2023-4584)

  - Memory safety bugs present in Firefox 116, Firefox ESR 115.1, and Thunderbird 115.1. Some of these bugs     showed evidence of memory corruption and we presume that with enough effort some of these could have been     exploited to run arbitrary code.  (CVE-2023-4585)

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
180230	Mozilla Firefox ESR < 115.2	Nessus	MacOS X Local Security Checks	8/29/2023	11/18/2025	high
180274	Ubuntu 20.04 LTS : Firefox vulnerabilities (USN-6320-1)	Nessus	Ubuntu Local Security Checks	8/30/2023	8/27/2024	high
180323	Mozilla Thunderbird < 115.2	Nessus	MacOS X Local Security Checks	8/31/2023	11/18/2025	high
181550	Oracle Linux 8 : thunderbird (ELSA-2023-4954)	Nessus	Oracle Linux Local Security Checks	9/18/2023	9/9/2025	high
292219	MiracleLinux 8 : thunderbird-102.15.0-1.el8.ML.1 (AXSA:2023-6386:24)	Nessus	Miracle Linux Local Security Checks	1/20/2026	1/20/2026	high
206859	NewStart CGSL MAIN 6.02 : firefox Multiple Vulnerabilities (NS-SA-2024-0066)	Nessus	NewStart CGSL Local Security Checks	9/10/2024	9/25/2025	critical
239763	TencentOS Server 4: thunderbird (TSSA-2024:0450)	Nessus	Tencent Local Security Checks	6/16/2025	12/4/2025	critical
180555	AlmaLinux 8 : firefox (ALSA-2023:4952)	Nessus	Alma Linux Local Security Checks	9/6/2023	9/25/2023	high

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