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Nick Mathewson 5240afa713 Fix a memory leak on decryption non-failure of v3 hsdesc
If it decrypts something that turns out to start with a NUL byte,
then decrypt_desc_layer() will return 0 to indicate the length of
its result.  But 0 also indicates an error, which causes the result
not to be freed by decrypt_desc_layer()'s callers.

Since we're trying to stabilize 0.3.2.x, I've opted for the simpler
possible fix here and made it so that an empty decrypted string will
also count as an error.

Fixes bug 24150 and OSS-Fuzz issue 3994.

The original bug was present but unreachable in 0.3.1.1-alpha. I'm
calling this a bugfix on 0.3.2.1-alpha since that's the first version
where you could actually try to decrypt these descriptors.
2017-11-06 12:59:11 -05:00
changes Fix a memory leak on decryption non-failure of v3 hsdesc 2017-11-06 12:59:11 -05:00
contrib bump to 0.3.2.3-alpha-dev. 2017-10-27 12:33:13 -04:00
doc man: Specify HiddenServiceNumIntroductionPoints for v3 2017-11-01 13:50:04 -04:00
m4 Replace obsolete macros with modern equivalents 2016-12-23 10:34:11 -05:00
scripts Revert "Temporarily disable compilation of the v3 hs fuzzing code" 2017-10-26 09:41:47 -04:00
src Fix a memory leak on decryption non-failure of v3 hsdesc 2017-11-06 12:59:11 -05:00
.gitignore Merge branch 'maint-0.3.1' 2017-09-19 13:08:59 -04:00
.gitlab-ci.yml Match .travis.yml more closely 2017-10-05 22:42:00 -05:00
.gitmodules Allow Rust build using locally supplied crates or crates.io 2017-05-19 08:47:11 -04:00
.travis.yml Merge branch 'maint-0.3.0' into maint-0.3.1 2017-07-26 15:39:56 -04:00
acinclude.m4 Run the copyright update script. 2017-03-15 16:13:17 -04:00
autogen.sh Report errors when updating configuration files 2016-12-23 10:35:26 -05:00
ChangeLog Fix a couple typos in the ChangeLog entries for 0.3.2.2-alpha. 2017-10-02 19:38:49 +00:00
configure.ac bump to 0.3.2.3-alpha-dev. 2017-10-27 12:33:13 -04:00
Doxyfile.in doxygen says these options are obsolete 2016-10-24 10:31:05 -04:00
INSTALL Small fixes for the 2702 implementation 2011-04-02 12:15:08 +02:00
LICENSE Run the copyright update script. 2017-03-15 16:13:17 -04:00
Makefile.am Whoops; only run lintchanges when usepython 2017-09-21 17:32:17 -04:00
Makefile.nmake Clean up the MVSC nmake files so they work again. 2014-09-09 10:27:05 -04:00
README Move hacking documentation into a new subdirectory. 2015-10-09 10:40:53 -04:00
ReleaseNotes forward-port changelogs and release notes for 0.2.8.15, 0.2.9.12, 0.3.0.11, 0.3.1.7 2017-09-18 10:11:15 -04:00

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.