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Vuln ID | Summary | CVSS Severity |
---|---|---|
CVE-2023-6212 |
Memory safety bugs present in Firefox 119, Firefox ESR 115.4, and Thunderbird 115.4. 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 < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5. Published: November 21, 2023; 10:15:08 AM -0500 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0:(not available) |
CVE-2023-6209 |
Relative URLs starting with three slashes were incorrectly parsed, and a path-traversal "/../" part in the path could be used to override the specified host. This could contribute to security problems in web sites. This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5. Published: November 21, 2023; 10:15:07 AM -0500 |
V4.0:(not available) V3.1: 6.5 MEDIUM V2.0:(not available) |
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. Other systems are unaffected.* This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5. Published: November 21, 2023; 10:15:07 AM -0500 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0:(not available) |
CVE-2023-6207 |
Ownership mismanagement led to a use-after-free in ReadableByteStreams This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5. Published: November 21, 2023; 10:15:07 AM -0500 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0:(not available) |
CVE-2023-6206 |
The black fade animation when exiting fullscreen is roughly the length of the anti-clickjacking delay on permission prompts. It was possible to use this fact to surprise users by luring them to click where the permission grant button would be about to appear. This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5. Published: November 21, 2023; 10:15:07 AM -0500 |
V4.0:(not available) V3.1: 5.4 MEDIUM V2.0:(not available) |
CVE-2023-6205 |
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. This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5. Published: November 21, 2023; 10:15:07 AM -0500 |
V4.0:(not available) V3.1: 6.5 MEDIUM V2.0:(not available) |
CVE-2023-6204 |
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. This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5. Published: November 21, 2023; 10:15:07 AM -0500 |
V4.0:(not available) V3.1: 6.5 MEDIUM V2.0:(not available) |