Logins saved by Firefox should be managed by the Password Manager component which uses encryption to save files on-disk. Instead, the username (not password) was saved by the Form Manager to an unencrypted file on disk. This vulnerability affects Firefox < 106.

An update of the mozjs package has been released.

The remote Ubuntu 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5709-1 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-2022-42927, CVE-2022-42928,     CVE-2022-42929, CVE-2022-42930, CVE-2022-42932)

    It was discovered that Firefox saved usernames to a plaintext file. A local user could potentially exploit     this to obtain sensitive information. (CVE-2022-42931)

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 remote host is affected by the vulnerability described in GLSA-202210-34 (Mozilla Firefox: Multiple Vulnerabilities)

  - A same-origin policy violation could have allowed the theft of cross-origin URL entries, leaking the     result of a redirect, via <code>performance.getEntries()</code>.  (CVE-2022-42927)

  - Certain types of allocations were missing annotations that, if the Garbage Collector was in a specific     state, could have lead to memory corruption and a potentially exploitable crash.  (CVE-2022-42928)

  - If a website called <code>window.print()</code> in a particular way, it could cause a denial of service of     the browser, which may persist beyond browser restart depending on the user's session restore settings.
    (CVE-2022-42929)

  - If two Workers were simultaneously initializing their CacheStorage, a data race could have occurred in the     <code>ThirdPartyUtil</code> component.  (CVE-2022-42930)

  - Logins saved by Firefox should be managed by the Password Manager component which uses encryption to save     files on-disk. Instead, the username (not password) was saved by the Form Manager to an unencrypted file     on disk.  (CVE-2022-42931)

  - Mozilla developers Ashley Hale and the Mozilla Fuzzing Team reported memory safety bugs present in     Thunderbird 102.3. 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-2022-42932)

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 106.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2022-44 advisory.

  - Mozilla developers Timothy Nikkel, Ashley Hale, and the Mozilla Fuzzing Team reported memory safety bugs     present in Firefox 105. 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-2022-46885)

  - A same-origin policy violation could have allowed the theft of cross-origin URL entries, leaking the     result of a redirect, via <code>performance.getEntries()</code>. (CVE-2022-42927)

  - Certain types of allocations were missing annotations that, if the Garbage Collector was in a specific     state, could have lead to memory corruption and a potentially exploitable crash. (CVE-2022-42928)

  - An optimization in WebGL was incorrect in some cases, and could have led to memory corruption and a     potentially exploitable crash.<br />Note: This advisory was added on December 13th, 2022 after we better     understood the impact of the issue. The fix was included in the original release of Firefox 106.
    (CVE-2022-46881)

  - If a website called <code>window.print()</code> in a particular way, it could cause a denial of service of     the browser, which may persist beyond browser restart depending on the user's session restore settings.
    (CVE-2022-42929)

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 106.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2022-44 advisory.

  - Mozilla developers Timothy Nikkel, Ashley Hale, and the Mozilla Fuzzing Team reported memory safety bugs     present in Firefox 105. 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-2022-46885)

  - A same-origin policy violation could have allowed the theft of cross-origin URL entries, leaking the     result of a redirect, via <code>performance.getEntries()</code>. (CVE-2022-42927)

  - Certain types of allocations were missing annotations that, if the Garbage Collector was in a specific     state, could have lead to memory corruption and a potentially exploitable crash. (CVE-2022-42928)

  - An optimization in WebGL was incorrect in some cases, and could have led to memory corruption and a     potentially exploitable crash.<br />Note: This advisory was added on December 13th, 2022 after we better     understood the impact of the issue. The fix was included in the original release of Firefox 106.
    (CVE-2022-46881)

  - If a website called <code>window.print()</code> in a particular way, it could cause a denial of service of     the browser, which may persist beyond browser restart depending on the user's session restore settings.
    (CVE-2022-42929)

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
239048	TencentOS Server 4: firefox (TSSA-2024:0159)	Nessus	Tencent Local Security Checks	critical
204437	Photon OS 5.0: Mozjs PHSA-2023-5.0-0035	Nessus	PhotonOS Local Security Checks	critical
166800	Ubuntu 18.04 LTS / 20.04 LTS : Firefox vulnerabilities (USN-5709-1)	Nessus	Ubuntu Local Security Checks	high
166768	GLSA-202210-34 : Mozilla Firefox: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	high
166209	Mozilla Firefox < 106.0	Nessus	Windows	high
166208	Mozilla Firefox < 106.0	Nessus	MacOS X Local Security Checks	high

Detections

Analytics

CVE-2022-42931

low

Tenable Plugins

critical

critical

high

high

high

high