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Re: [tor-bugs] #26522 [Core Tor/Tor]: strncat() without bounds

#26522: strncat() without bounds
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 Reporter:  Dhiraj                      |          Owner:  (none)
     Type:  defect                      |         Status:  new
 Priority:  Medium                      |      Milestone:  Tor: unspecified
Component:  Core Tor/Tor                |        Version:
 Severity:  Major                       |     Resolution:
 Keywords:  security-low, 035-proposed  |  Actual Points:
Parent ID:                              |         Points:
 Reviewer:                              |        Sponsor:
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Changes (by teor):

 * keywords:   => security-low, 035-proposed
 * version:  Tor: unspecified =>
 * milestone:   => Tor: unspecified


Comment:

 Marking as "security-low" in 0.3.5, because our use of strncat() is a
 defence in depth mechanism that doesn't provide as much security as it
 should:
 https://trac.torproject.org/projects/tor/wiki/org/teams/NetworkTeam/SecurityPolicy

 We should review all uses of strncat() to make sure we always pass the
 *remaining*string length.
 (And all uses of strlcat() to make sure we check the return value.)

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/26522#comment:1>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online

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