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Mike Perry cc52f7e5b7 Bug 40897 Bug Bounty: Double the number of max conflux circs
We strongly suspect that bug 40897 was caused by a custom Tor client that
tried to use more than the default number of conflux circuits, for either
performance or traffic analysis defense gains, or both.

This entity hit a safety check on the exit side, which caused a UAF. Our
"belt and suspenders" snapped off, and hit us in the face... again...

Since there are good reasons to try more than 2 conflux legs, and research has
found some traffic analysis benefits with as many as 5, we're going to raise
and parameterize this limit as a form of bug bounty for finding this UAF, so
that this entity can try out a little more confluxing.

This should also make it easier for researchers to try things like gathering
traces with larger amounts of confluxing than normal, to measure real-world
traffic analysis impacts of conflux.

Shine on, you yoloing anonymous diamond. Let us know if you find out anything
interesting!
2023-12-07 18:37:30 +00:00
.gitlab/issue_templates Remove Proposal.md. 2021-02-12 20:39:48 +00:00
changes fallbackdir: Update list generated on November 09, 2023 2023-11-09 09:23:59 -05:00
contrib version: Bump version to 0.4.8.9-dev 2023-11-09 10:10:33 -05:00
doc Include a basic Rust wrapper for Equi-X and HashX 2023-07-26 12:27:15 -07:00
m4 added check for compiler support of Wextra-semi 2022-11-01 15:32:43 -06:00
scripts script: Attempt to fix geoip script 2023-08-30 08:40:44 -04:00
src Bug 40897 Bug Bounty: Double the number of max conflux circs 2023-12-07 18:37:30 +00:00
.appveyor.yml CI: Remove VS2015 AppVeyor build 2020-08-12 14:09:32 +03:00
.clang-format Add a dire warning about not reformatting the whole codebase yet. 2020-02-12 18:52:35 -05:00
.editorconfig Add .editorconfig to follow coding standards style 2018-06-17 19:24:40 -04:00
.gitignore cargo: Move lockfile to root and update 2023-08-15 09:52:30 -07:00
.gitlab-ci.yml Merge branch 'maint-0.4.7' into maint-0.4.8 2023-09-18 09:08:57 -04:00
.travis.yml rust: Remove Rust support from tree 2021-10-06 15:12:04 -04:00
acinclude.m4 m4: Change LIBS order of TOR_SEARCH_LIBRARY() 2021-01-13 09:52:10 -05:00
autogen.sh Cleanup shellcheck warnings in autogen.sh 2019-01-18 13:49:30 +02:00
Cargo.lock cargo: Move lockfile to root and update 2023-08-15 09:52:30 -07:00
Cargo.toml cargo: Add geoip db tool to top level workspace 2023-08-04 09:55:26 -04:00
ChangeLog ChangeLog and ReleaseNotes for 0.4.8.4 stable 2023-08-23 10:12:54 -04:00
CODE_OF_CONDUCT Add CODE_OF_CONDUCT file 2018-07-05 11:22:33 +03:00
configure.ac version: Bump version to 0.4.8.9-dev 2023-11-09 10:10:33 -05:00
CONTRIBUTING improve a URL 2018-05-11 18:00:30 -04:00
Doxyfile.in Remove last artifacts of Rust related code 2021-10-06 15:12:04 -04:00
INSTALL Remove old instructions from INSTALL 2018-07-03 16:34:52 +03:00
LICENSE Merge branch 'maint-0.3.5' into maint-0.4.4 2021-03-12 11:36:34 -05:00
Makefile.am Merge branch 'maint-0.4.7' 2023-06-19 08:09:45 -04:00
README.md readme: Fix sentence in Releases section 2022-03-09 14:13:34 -05:00
ReleaseNotes ChangeLog and ReleaseNotes for 0.4.8.4 stable 2023-08-23 10:12:54 -04:00
warning_flags.in Try @warning_flags to avoid bloating verbose make logs 2018-12-21 10:00:23 -05:00

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.

Build

To build Tor from source:

./configure
make
make install

To build Tor from a just-cloned git repository:

./autogen.sh
./configure
make
make install

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The tarballs, checksums and signatures can be found here: https://dist.torproject.org

  • Checksum: <tarball-name>.sha256sum
  • Signatures: <tarball-name>.sha256sum.asc

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You can find our release schedule here:

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The following keys are the maintainers of this repository. One or many of these keys can sign the releases, do NOT expect them all:

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See our hacking documentation in doc/HACKING/.

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