Top Browser Bugs: From Memory Crashes to Sneaky Save As Attacks
Memory safety bugs in Firefox 126, Firefox ESR 115.11, and Thunderbird 115.11 could lead to exploitable crashes.

Hot Take:
Looks like the cyber gremlins have been busy! From frame-busting iframes to sneaky ‘Save As’ shenanigans, it’s a wonder our browsers aren’t in therapy. Buckle up, folks, the cyber rollercoaster is in full swing!
Key Points:
- Use-after-free vulnerability due to poorly timed garbage collection.
- Timing attacks to identify active external protocol handlers.
- Bypassing iframe restrictions with a crafty X-Frame-Options header.
- Tricking ‘Save As’ functionality to bypass file extension restrictions on Windows 10.
- Offscreen Canvas cross-origin tainting mishandled, violating same-origin policy.
- Memory corruption via manipulated
<input>
tags leading to exploitable crashes. - Memory safety bugs in Firefox and Thunderbird potentially allowing arbitrary code execution.
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