[tor-bugs] #22660 [Core Tor/Tor]: Guard against stack smashing attacks in tor

Tor Bug Tracker & Wiki blackhole at torproject.org
Mon Jul 3 08:08:11 UTC 2017


#22660: Guard against stack smashing attacks in tor
-------------------------------------------------+-------------------------
 Reporter:  teor                                 |          Owner:  nickm
     Type:  defect                               |         Status:
                                                 |  needs_revision
 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,      |
  review-group-19                                |
Parent ID:                                       |         Points:  0.5
 Reviewer:                                       |        Sponsor:
-------------------------------------------------+-------------------------

Comment (by teor):

 llvm has just added stack probing support to master, so hopefully clang
 will make -fstack-check work eventually:
 http://llvmweekly.org/issue/182
 http://reviews.llvm.org/rL305939

 Rust is implementing stack probing using the new llvm stack probing
 support:
 https://github.com/rust-lang/rust/pull/42816

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22660#comment:9>
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