By: Michael S (already5chosen.delete@this.yahoo.com), September 30, 2022 4:21 am
Room: Moderated Discussions
Doug S (foo.delete@this.bar.bar) on September 29, 2022 10:39 pm wrote:
> noko (noko.delete@this.noko.com) on September 29, 2022 8:02 pm wrote:
> > - ARM's 3rd try to kill ROP, this time with a shadow stack
>
>
> Legacy cruft in ISAs used to mean no longer needed 16 bit instruction formats, then
> it meant multiple generations of multimedia instructions. These days it means multiple
> attempts to address security issues, with fixes for ROP, ASLR, speculation attacks and
> so on as those protections are eventually found lacking and rendered obsolete.
10 years ago they had perfect opportunity to prevent 99.9% of ROP attacks by making official aarch64
ABI dual-stack.
They didn't do it back then. And now they construct band-aids.
Not that I think that nowadays ROP is a major threat. May be, it was 20-25 years ago, but things changes.
> noko (noko.delete@this.noko.com) on September 29, 2022 8:02 pm wrote:
> > - ARM's 3rd try to kill ROP, this time with a shadow stack
>
>
> Legacy cruft in ISAs used to mean no longer needed 16 bit instruction formats, then
> it meant multiple generations of multimedia instructions. These days it means multiple
> attempts to address security issues, with fixes for ROP, ASLR, speculation attacks and
> so on as those protections are eventually found lacking and rendered obsolete.
10 years ago they had perfect opportunity to prevent 99.9% of ROP attacks by making official aarch64
ABI dual-stack.
They didn't do it back then. And now they construct band-aids.
Not that I think that nowadays ROP is a major threat. May be, it was 20-25 years ago, but things changes.
| Topic | Posted By | Date |
|---|---|---|
| ARM announces Armv8.9 and Armv9.4 | noko | 2022/09/29 08:02 PM |
| ARM announces Armv8.9 and Armv9.4 | Doug S | 2022/09/29 10:39 PM |
| ARM announces Armv8.9 and Armv9.4 | Michael S | 2022/09/30 04:21 AM |
| ARM announces Armv8.9 and Armv9.4 | Adrian | 2022/09/30 01:55 AM |
| ARM announces Armv8.9 and Armv9.4 | Michael S | 2022/09/30 04:28 AM |
| ARM announces Armv8.9 and Armv9.4 | dmcq | 2022/09/30 09:11 AM |
