Vulnerabilities > Mozilla > Firefox ESR > 91.9
| DATE | CVE | VULNERABILITY TITLE | RISK |
|---|---|---|---|
| 2023-12-19 | CVE-2023-6862 | Use After Free vulnerability in multiple products A use-after-free was identified in the `nsDNSService::Init`. | 8.8 |
| 2023-12-19 | CVE-2023-6863 | The `ShutdownObserver()` was susceptible to potentially undefined behavior due to its reliance on a dynamic type that lacked a virtual destructor. | 8.8 |
| 2023-12-19 | CVE-2023-6864 | Out-of-bounds Write vulnerability in multiple products Memory safety bugs present in Firefox 120, Firefox ESR 115.5, and Thunderbird 115.5. | 8.8 |
| 2023-12-19 | CVE-2023-6865 | `EncryptingOutputStream` was susceptible to exposing uninitialized data. | 6.5 |
| 2023-12-19 | CVE-2023-6867 | Improper Restriction of Rendered UI Layers or Frames vulnerability in multiple products The timing of a button click causing a popup to disappear was approximately the same length as the anti-clickjacking delay on permission prompts. | 6.1 |
| 2023-11-21 | CVE-2023-6204 | Out-of-bounds Read vulnerability in multiple products On some systems—depending on the graphics settings and drivers—it was possible to force an out-of-bounds read and leak memory data into the images created on the canvas element. | 6.5 |
| 2023-11-21 | CVE-2023-6205 | Use After Free vulnerability in multiple products It was possible to cause the use of a MessagePort after it had already been freed, which could potentially have led to an exploitable crash. | 6.5 |
| 2023-11-21 | CVE-2023-6206 | Improper Restriction of Rendered UI Layers or Frames vulnerability in multiple products The black fade animation when exiting fullscreen is roughly the length of the anti-clickjacking delay on permission prompts. | 5.4 |
| 2023-11-21 | CVE-2023-6207 | Use After Free vulnerability in multiple products Ownership mismanagement led to a use-after-free in ReadableByteStreams This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5. | 8.8 |
| 2023-11-21 | CVE-2023-6208 | When using X11, text selected by the page using the Selection API was erroneously copied into the primary selection, a temporary storage not unlike the clipboard. *This bug only affects Firefox on X11. | 8.8 |