tor 0.2.7.6-1ubuntu1 has memory-access severe bug TROVE-2016-10-001

Bug #1662548 reported by Chad Miller
12
This bug affects 2 people
Affects Status Importance Assigned to Milestone
Tor
Unknown
Unknown
tor (Ubuntu)
Fix Released
Critical
Chad Miller
Trusty
Won't Fix
Undecided
Unassigned
Xenial
Fix Released
Undecided
Unassigned
Yakkety
Won't Fix
Undecided
Unassigned

Bug Description

A buffer overrun can crash Tor 0.2.4.27 (trusty), 0.2.7.6 (xenial), 0.2.8.8 (yakkety) causing d-o-s.

Tor treats "the contents of a buffer chunk as if they were a NUL-terminated string. At least one such bug seems to be present in all currently used versions of Tor, and would allow an attacker to remotely crash most Tor instances, especially those compiled with extra compiler hardening."

Revision history for this message
Chad Miller (cmiller) wrote :

This is TROVE-2016-10-001 .

Changed in tor (Ubuntu):
assignee: nobody → Chad Miller (cmiller)
status: New → Confirmed
importance: Undecided → Critical
milestone: none → trusty-updates
milestone: trusty-updates → none
Chad Miller (cmiller)
affects: vidalia → tor
Revision history for this message
Robie Basak (racb) wrote :

Zesty has 0.2.9.10-1ubuntu1. I think this might mean that this issue is fixed in Zesty? It isn't clear to me.

Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in tor (Ubuntu Trusty):
status: New → Confirmed
Changed in tor (Ubuntu Xenial):
status: New → Confirmed
Changed in tor (Ubuntu Yakkety):
status: New → Confirmed
Revision history for this message
Otus (jan-varho) wrote :

0.2.7 is also unsupported since August 1: https://blog.torproject.org/blog/tor-0315-alpha-released

Revision history for this message
Simon Déziel (sdeziel) wrote :

Tor 0.2.9.11 is now in Xenial and Zesty, marking Xenial as fix released.

Changed in tor (Ubuntu Xenial):
status: Confirmed → Fix Released
Changed in tor (Ubuntu):
status: Confirmed → Fix Released
Unit 193 (unit193)
Changed in tor (Ubuntu Trusty):
status: Confirmed → Won't Fix
Changed in tor (Ubuntu Yakkety):
status: Confirmed → Won't Fix
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