QID 379170

Date Published: 2023-12-21

QID 379170: Mozilla Firefox Multiple Vulnerabilities (MFSA2023-56)

Firefox is a free and open-source web browser developed for Windows, OS X, and Linux, with a mobile version for Android.

Mozilla Firefox is prone to
CVE-2023-6856: Heap-buffer-overflow affecting WebGL DrawElementsInstanced method with Mesa VM driver
CVE-2023-6135: NSS susceptible to "Minerva" attack
CVE-2023-6865: Potential exposure of uninitialized data in EncryptingOutputStream
CVE-2023-6857: Symlinks may resolve to smaller than expected buffers
CVE-2023-6858: Heap buffer overflow in nsTextFragment
CVE-2023-6859: Use-after-free in PR_GetIdentitiesLayer
CVE-2023-6866: TypedArrays lack sufficient exception handling
CVE-2023-6860: Potential sandbox escape due to VideoBridge lack of texture validation
CVE-2023-6867: Clickjacking permission prompts using the popup transition
CVE-2023-6861: Heap buffer overflow affected nsWindow::PickerOpen(void) in headless mode
CVE-2023-6868: WebPush requests on Firefox for Android did not require VAPID key
CVE-2023-6869: Content can paint outside of sandboxed iframe
CVE-2023-6870: Android Toast notifications may obscure fullscreen event notifications
CVE-2023-6871: Lack of protocol handler warning in some instances
CVE-2023-6872: Browsing history leaked to syslogs via GNOME
CVE-2023-6863: Undefined behavior in ShutdownObserver()
CVE-2023-6864: Memory safety bugs fixed in Firefox 121, Firefox ESR 115.6, and Thunderbird 115.6
CVE-2023-6873: Memory safety bugs fixed in Firefox 121

Affected Products:
Prior to Firefox 121

QID Detection Logic (Authenticated) :
This checks for vulnerable version of Firefox browser.


Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Successful exploitation of this vulnerability could lead to a security breach or could affect integrity, availability, and confidentiality.

  • CVSS V3 rated as Critical - 8.8 severity.
  • CVSS V2 rated as Medium - 5.4 severity.
    • Solution
    Vendor has released fix to address these vulnerabilities. Upgrade to Firefox 121 to fix vulnerability, you can also refer MFSA2023-56 or later for more details.
    Vendor References

    CVEs related to QID 379170

    CVE-2023-6857 | CVE-2023-6858 | CVE-2023-6871 | CVE-2023-6856 | CVE-2023-6868 | CVE-2023-6872 | CVE-2023-6866 | CVE-2023-6867 | CVE-2023-6873 | CVE-2023-6869 | CVE-2023-6135 | CVE-2023-6859 | CVE-2023-6865 | CVE-2023-6860 | CVE-2023-6863 | CVE-2023-6864 | CVE-2023-6870 | CVE-2023-6861 |
    Software Advisories
    Advisory ID Software Component Link
    MFSA2023-56 URL Logo www.mozilla.org/en-US/security/advisories/mfsa2023-56/
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