Vulnerabilities

Memory safety bugs present in Firefox 120, Firefox ESR 115.5, and Thunderbird 115.5.

The `ShutdownObserver()` was susceptible to potentially undefined behavior due to its reliance on a dynamic type that lacked a virtual destructor.

A use-after-free was identified in the `nsDNSService::Init`.

The `nsWindow::PickerOpen(void)` method was susceptible to a heap buffer overflow when running in headless mode.

The `VideoBridge` allowed any content process to use textures produced by remote decoders.

A use-after-free condition affected TLS socket creation when under memory pressure.

Firefox was susceptible to a heap buffer overflow in `nsTextFragment` due to insufficient OOM handling.

When resolving a symlink, a race may occur where the buffer passed to `readlink` may actually be smaller than necessary.

The WebGL `DrawElementsInstanced` method was susceptible to a heap buffer overflow when used on systems with the Mesa VM driver.

The signature of a digitally signed S/MIME email message may optionally specify the signature creation date and time.

When processing a PGP/MIME payload that contains digitally signed text, the first paragraph of the text was never shown to the user.