David Goulet 3030741b5d hs-v2: Remove any expiring intro from the retry list
TROVE-2017-13. Severity: High.

In the unlikely case that a hidden service could be missing intro circuit(s),
that it didn't have enough directory information to open new circuits and that
an intro point was about to expire, a use-after-free is possible because of
the intro point object being both in the retry list and expiring list at the
same time.

The intro object would get freed after the circuit failed to open and then
access a second time when cleaned up from the expiring list.

Fixes #24313
2017-11-28 18:41:29 -05:00
2017-10-25 09:27:07 -04:00
2014-12-23 11:39:48 -05:00
2016-03-11 09:13:33 -05:00
2016-03-28 13:54:50 -04:00
2017-10-25 09:27:07 -04:00
2016-02-27 18:48:19 +01:00

Tor protects your privacy on the internet by hiding the connection
between your Internet address and the services you use. We believe Tor
is reasonably secure, but please ensure you read the instructions and
configure it properly.

To build Tor from source:
        ./configure && make && make install

To build Tor from a just-cloned git repository:
        sh autogen.sh && ./configure && make && make install

Home page:
        https://www.torproject.org/

Download new versions:
        https://www.torproject.org/download/download.html

Documentation, including links to installation and setup instructions:
        https://www.torproject.org/docs/documentation.html

Making applications work with Tor:
        https://wiki.torproject.org/projects/tor/wiki/doc/TorifyHOWTO

Frequently Asked Questions:
        https://www.torproject.org/docs/faq.html


To get started working on Tor development:
        See the doc/HACKING directory.
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