The version of Firefox ESR installed on the remote macOS or Mac OS X host is prior to 102.10. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2023-14 advisory.

  - Mozilla developers 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. (CVE-2023-29550)

  - A newline in a filename could have been used to bypass the file extension security mechanisms that replace     malicious file extensions such as .lnk  with .download. This could have led to accidental execution of     malicious code. This bug only affects Firefox on Windows. Other versions of Firefox are unaffected.
    (CVE-2023-29542)

  - An attacker could have caused an out of bounds memory access using WebGL APIs, leading to memory     corruption and a potentially exploitable crash. This bug only affects Firefox for macOS. Other operating     systems are unaffected. (CVE-2023-29531)

  - A local attacker can trick the Mozilla Maintenance Service into applying an unsigned update file by     pointing the service at an update file on a malicious SMB server. The update file can be replaced after     the signature check, before the use, because the write-lock requested by the service does not work on a     SMB server. Note: This attack requires local system access and only affects Windows. Other operating     systems are not affected. (CVE-2023-29532)

  - 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.
    (CVE-2023-29533)

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 112.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2023-13 advisory.

  - Mozilla developers Randell Jesup, Andrew McCreight, Gabriele Svelto, and the Mozilla Fuzzing Team reported     memory safety bugs present in Firefox 111. 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-2023-29551)

  - A newline in a filename could have been used to bypass the file extension security mechanisms that replace     malicious file extensions such as .lnk  with .download. This could have led to accidental execution of     malicious code. This bug only affects Firefox on Windows. Other versions of Firefox are unaffected.
    (CVE-2023-29542)

  - An attacker could have caused an out of bounds memory access using WebGL APIs, leading to memory     corruption and a potentially exploitable crash. This bug only affects Firefox for macOS. Other operating     systems are unaffected. (CVE-2023-29531)

  - A local attacker can trick the Mozilla Maintenance Service into applying an unsigned update file by     pointing the service at an update file on a malicious SMB server. The update file can be replaced after     the signature check, before the use, because the write-lock requested by the service does not work on a     SMB server. Note: This attack requires local system access and only affects Windows. Other operating     systems are not affected. (CVE-2023-29532)

  - 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.
    (CVE-2023-29533)

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

The remote Fedora 37 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2023-1749adc275 advisory.

    - New upstream update (112.0)

Tenable has extracted the preceding description block directly from the Fedora 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 Fedora 38 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2023-07c1537955 advisory.

    - New upstream update (112.0)

Tenable has extracted the preceding description block directly from the Fedora 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
174074	Mozilla Firefox ESR < 102.10	Nessus	MacOS X Local Security Checks	4/11/2023	11/18/2025	critical
174076	Mozilla Firefox < 112.0	Nessus	Windows	4/11/2023	11/18/2025	critical
174196	Fedora 37 : firefox (2023-1749adc275)	Nessus	Fedora Local Security Checks	4/13/2023	11/14/2024	critical
174353	Fedora 38 : firefox (2023-07c1537955)	Nessus	Fedora Local Security Checks	4/15/2023	11/14/2024	critical

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