Changes between Initial Version and Version 2 of Ticket #52654


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Timestamp:
Oct 19, 2016, 2:19:03 PM (8 years ago)
Author:
larryv (Lawrence Velázquez)
Comment:

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  • Ticket #52654

    • Property Status changed from new to closed
    • Property Resolution changed from to fixed
  • Ticket #52654 – Description

    initial v2  
    1  Tor 0.2.9.4-alpha fixes a security hole in previous versions of Tor
    2   that would allow a remote attacker to crash a Tor client, hidden
    3   service, relay, or authority. All Tor users should upgrade to this
    4   version, or to 0.2.8.9. Patches will be released for older versions
    5   of Tor.
     1https://blog.torproject.org/blog/tor-0289-released-important-fixes
    62
    7   o Major features (security fixes):
    8     - Prevent a class of security bugs caused by treating the contents
    9       of a buffer chunk as if they were a NUL-terminated string. At
    10       least one such bug seems to be present in all currently used
    11       versions of Tor, and would allow an attacker to remotely crash
    12       most Tor instances, especially those compiled with extra compiler
    13       hardening. With this defense in place, such bugs can't crash Tor,
    14       though we should still fix them as they occur. Closes ticket
    15       20384 (TROVE-2016-10-001).
     3> Tor 0.2.8.9 backports a fix for a security hole in previous versions
     4> of Tor that would allow a remote attacker to crash a Tor client,
     5> hidden service, relay, or authority. All Tor users should upgrade to
     6> this version, or to 0.2.9.4-alpha. Patches will be released for older
     7> versions of Tor.
     8>
     9> - Major features (security fixes):
     10>   - Prevent a class of security bugs caused by treating the contents
     11>     of a buffer chunk as if they were a NUL-terminated string. At
     12>     least one such bug seems to be present in all currently used
     13>     versions of Tor, and would allow an attacker to remotely crash
     14>     most Tor instances, especially those compiled with extra compiler
     15>     hardening. With this defense in place, such bugs can't crash Tor,
     16>     though we should still fix them as they occur. Closes ticket
     17>     [https://bugs.torproject.org/20384 20384] (TROVE-2016-10-001).