Re: libass ass_outline.c signed integer overflow

[Ian Zimmerman <itz () very loosely org>]

On 2020-09-29 08:19, Fstark wrote:

> In `ass_outline_construct`'s call to `outline_stroke` a signed integer
> overflow happens *(undefined behaviour)*. On my machine signed overflow
> happens to wrap around to a negative value, thus failing the assert.
> https://github.com/libass/libass/issues/431
>
> https://github.com/libass/libass/pull/432

I have followed the links above, and this seems to be an example of a
situation where the CVE process has failed. It is still not fixed in
Debian, possibly for that reason. I'll report a Debian bug today.

-- 
Ian