[tor-bugs] #30041 [Core Tor/Tor]: OOB access with huge buffers (src/lib/buf/buffers.c)

Tor Bug Tracker & Wiki blackhole at torproject.org
Tue Aug 27 20:39:20 UTC 2019


#30041: OOB access with huge buffers (src/lib/buf/buffers.c)
-------------------------------------------------+-------------------------
 Reporter:  asn                                  |          Owner:  (none)
     Type:  defect                               |         Status:  closed
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  0.2.9.x-final
Component:  Core Tor/Tor                         |        Version:  Tor:
                                                 |  unspecified
 Severity:  Normal                               |     Resolution:  fixed
 Keywords:  security-low, hackerone, bug-        |  Actual Points:
  bounty, 029-backport, 035-backport,            |
  040-backport, consider-backport-after-0405     |
Parent ID:                                       |         Points:
 Reviewer:  nickm                                |        Sponsor:
-------------------------------------------------+-------------------------

Comment (by teor):

 Replying to [comment:13 cypherpunks]:
 > i believe my issue is related. will this limit fix my bugs or should i
 open new ticket?
 >
 >
 > {{{
 > [warn] {BUG} Bug: Non-fatal assertion !(buf->datalen >= INT_MAX -
 at_most) failed in buf_read_from_tls at buffers_tls.c:73. (Stack trace not
 available) (on Tor 0.4.0.5 )
 > }}}

 Looks like #25957, I will add your logs there.
 If you can answer the questions on that ticket, we might be able to make
 progress,

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30041#comment:14>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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