[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]
Re: [tor-bugs] #22660 [Core Tor/Tor]: Guard against stack smashing attacks in tor
#22660: Guard against stack smashing attacks in tor
-------------------------------------------------+-------------------------
Reporter: teor | Owner: nickm
Type: defect | Status:
| needs_review
Priority: Medium | Milestone: Tor:
| 0.3.2.x-final
Component: Core Tor/Tor | Version:
Severity: Normal | Resolution:
Keywords: tor-hardening, security | Actual Points:
029-backport 030-backport 031-backport |
Parent ID: | Points: 0.5
Reviewer: | Sponsor:
-------------------------------------------------+-------------------------
Comment (by teor):
Replying to [comment:2 nickm]:
> We already have -fstack-protector-all, but I guess it doesn't include
this?
>
> Also, we should never be installed SUID, yeah?
tor relays often launch tor as root, but I don't know of any common setups
that allow a local unprivileged user to influence its torrc.
I'd be more worried about network attacks based on research like this: the
researchers couldn't rule them out.
> When I try to build with this, I get many `/usr/bin/ld: warning: -z
noexecheap ignored.` warnings. I don't know if that's something I should
be concerned about.
I wonder if your linker supports noexecheap?
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22660#comment:4>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
_______________________________________________
tor-bugs mailing list
tor-bugs@xxxxxxxxxxxxxxxxxxxx
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-bugs