Commit Graph

28901 Commits

Author SHA1 Message Date
Isis Lovecruft
569b4e57e2 rust: Mirror TROVE-2018-005 fix in Rust protover implementation.
* REFACTORS `UnvalidatedProtoEntry::from_str` to place the bulk of the
   splitting/parsing logic in to a new
   `UnvalidatedProtoEntry::parse_protocol_and_version_str()` method (so that
   both `from_str()` and `from_str_any_len()` can call it.)
 * ADD a new `UnvalidatedProtoEntry::from_str_any_len()` method in order to
   maintain compatibility with consensus methods older than 29.
 * ADD a limit on the number of characters in a protocol name.
 * FIXES part of #25517: https://bugs.torproject.org/25517
2018-05-22 12:27:25 -04:00
Nick Mathewson
a3a8d80beb Merge branch 'trove-2018-005_032' into trove-2018-005_033 2018-05-22 12:27:15 -04:00
Nick Mathewson
d2bc019053 changes file for TROVE-2018-005 2018-05-22 12:26:23 -04:00
Nick Mathewson
bc2d6876b3 Add stdbool to protover.h. Only needed for the 032 backport 2018-05-22 12:15:52 -04:00
Isis Lovecruft
b681438daf vote: TROVE-2018-005 Make DirAuths omit misbehaving routers from their vote. 2018-05-22 12:13:41 -04:00
Isis Lovecruft
eb96692842 protover: TROVE-2018-005 Fix potential DoS in protover protocol parsing.
In protover.c, the `expand_protocol_list()` function expands a `smartlist_t` of
`proto_entry_t`s to their protocol name concatenated with each version number.
For example, given a `proto_entry_t` like so:

    proto_entry_t *proto = tor_malloc(sizeof(proto_entry_t));
    proto_range_t *range = tor_malloc_zero(sizeof(proto_range_t));

    proto->name = tor_strdup("DoSaaaaaaaaaaaaaaaaaaaaaa[19KB]aaa");
    proto->ranges = smartlist_new();

    range->low = 1;
    range->high = 65536;

    smartlist_add(proto->ranges, range);

(Where `[19KB]` is roughly 19KB of `"a"` bytes.)  This would expand in
`expand_protocol_list()` to a `smartlist_t` containing 65536 copies of the
string, e.g.:

    "DoSaaaaaaaaaaaaaaaaaaaaaa[19KB]aaa=1"
    "DoSaaaaaaaaaaaaaaaaaaaaaa[19KB]aaa=2"
    […]
    "DoSaaaaaaaaaaaaaaaaaaaaaa[19KB]aaa=65535"

Thus constituting a potential resource exhaustion attack.

The Rust implementation is not subject to this attack, because it instead
expands the above string into a `HashMap<String, HashSet<u32>` prior to #24031,
and a `HashMap<UnvalidatedProtocol, ProtoSet>` after).  Neither Rust version is
subject to this attack, because it only stores the `String` once per protocol.
(Although a related, but apparently of too minor impact to be usable, DoS bug
has been fixed in #24031. [0])

[0]: https://bugs.torproject.org/24031

 * ADDS hard limit on protocol name lengths in protover.c and checks in
   parse_single_entry() and expand_protocol_list().
 * ADDS tests to ensure the bug is caught.
 * FIXES #25517: https://bugs.torproject.org/25517
2018-05-22 12:12:01 -04:00
Nick Mathewson
48d752407b Add a missing include to get the declaration of OPENSSL_1_1_API
Apparently, even though I had tested on OpenSSL 1.1.1 with
no-deprecated, OpenSSL 1.1.0 is different enough that I should have
tested with that as well.

Fixes bug 26156; bugfix on 0.3.4.1-alpha where we first declared
support for this configuration.
2018-05-22 10:05:27 -04:00
Nick Mathewson
e053c71e3e Merge branch 'appveyor_min_029_v2' into appveyor_min_034_v2 2018-05-22 09:57:12 -04:00
Nick Mathewson
0c81bdc9ef changes file for appveyor support 2018-05-22 09:56:33 -04:00
Nick Mathewson
406366c540 Appveyor configuration files.
Original by Marcin Cieślak, with modifications from Isis Lovecruft
and Nick Mathewson.
2018-05-22 09:56:33 -04:00
Nick Mathewson
6c35ad08cf Add a missing "return -1" when checking for Ed25519 ID loops
Fixes bug 26158; bugfix on 0.3.0.1-alpha.
2018-05-22 08:54:17 -04:00
Nick Mathewson
add00045aa Merge branch 'bug26101_26102' 2018-05-22 08:42:04 -04:00
Nick Mathewson
87a7748a84 remove already-merged changes file 2018-05-22 08:36:03 -04:00
Nick Mathewson
d2aefffe2f Merge branch 'maint-0.3.3' 2018-05-22 08:35:41 -04:00
Nick Mathewson
3d12663243 Fix a crash bug when testing reachability
Fixes bug 25415; bugfix on 0.3.3.2-alpha.
2018-05-22 08:35:37 -04:00
Nick Mathewson
459ab3650c Python script for IRC notifications from appveyor
Original by Christopher Wood, with modifications by nexB, Isis
Lovecruft, and Marcin Cieślak.
2018-05-21 17:01:11 -04:00
Nick Mathewson
8483241b4e Improve openssl_version tests with better messages
These tests would report errors, but wouldn't report the offending
strings.
2018-05-21 15:16:07 -04:00
Fernando Fernandez Mancera
d38e7ddf5b Refactor crypto.[ch] into smaller HKDF module.
Add two new files (crypto_hkdf.c, crypto_hkdf.h) as new module of crypto.[ch].
This new module includes all functions and dependencies related to HKDF
operations.  Those have been removed from crypto.[ch].

Follows #24658.

Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net>
2018-05-18 11:04:31 +02:00
Nick Mathewson
943291d7ae Whoops -- add an entry I missed to the 0.3.4.1-alpha changelog 2018-05-17 12:47:06 -04:00
Nick Mathewson
3b42b14979 bump to 0.3.4.1-alpha-dev 2018-05-17 09:44:31 -04:00
Nick Mathewson
deb8970a29 increment changelog date 2018-05-17 09:01:14 -04:00
Nick Mathewson
5dbf70f903 Bump version to 0.3.4.1-alpha; contemplate a release 2018-05-16 14:40:28 -04:00
Nick Mathewson
2b0aab7a6e Add comments explaining when a connected cell has an UNSPEC addr
Should prevent other bugs like 26117.
2018-05-16 14:12:50 -04:00
Nick Mathewson
3c4353179f Merge branch 'maint-0.3.2' into maint-0.3.3 2018-05-16 12:11:45 -04:00
Nick Mathewson
8340f641c3 Merge branch 'maint-0.3.1' into maint-0.3.2 2018-05-16 12:11:45 -04:00
Nick Mathewson
d3a972561a Merge branch 'maint-0.2.9' into maint-0.3.1 2018-05-16 12:11:45 -04:00
Nick Mathewson
d1e4ffc710 Merge branch 'bug26072_029' into maint-0.2.9 2018-05-16 12:11:40 -04:00
Nick Mathewson
ddc3eb20b7 Merge branch 'bug26116_029' into bug26116_033 2018-05-16 11:43:53 -04:00
Nick Mathewson
881f7157f6 Return -1 from our PEM password callback
Apparently, contrary to its documentation, this is how OpenSSL now
wants us to report an error.

Fixes bug 26116; bugfix on 0.2.5.16.
2018-05-16 11:39:42 -04:00
Mike Perry
d0b1157fc1 Bug 26117: Move CIRC_BW field accounting.
Previously, we used the AF_UNSPEC check to represent valid connected cell
data as a result of the lack of return. This was incorrect.
2018-05-15 18:58:24 +00:00
Nick Mathewson
fcfa22d80a Merge branch 'maint-0.3.3' 2018-05-16 12:11:46 -04:00
Nick Mathewson
4a5c1584fe update tor-rust-dependencies submodule 2018-05-16 09:16:47 -04:00
Nick Mathewson
1442e818b6 Merge remote-tracking branch 'isis-github/bug26106' 2018-05-16 09:16:04 -04:00
Nick Mathewson
e5974e5158 Merge remote-tracking branch 'isis-github/bug26108' 2018-05-16 09:14:13 -04:00
Nick Mathewson
2d2cfbcd81 Merge remote-tracking branch 'isis-github/bug26109' 2018-05-16 09:13:27 -04:00
Nick Mathewson
7f37ba825f reflow the blurb. 2018-05-16 09:06:43 -04:00
Nick Mathewson
d194f2130d move a changelog entry and try writing a blurb 2018-05-16 09:05:47 -04:00
Nick Mathewson
ff01471ce7 fix some changelog typos that Catalyst found. 2018-05-15 19:40:46 -04:00
Isis Lovecruft
4d349c6a61
rust: Update rand_core dependency to 0.2.0-pre.0. 2018-05-15 19:33:20 +00:00
Isis Lovecruft
760cf8e28f
rust: Update rand dev-dependency to 0.5.0-pre.2. 2018-05-15 19:31:29 +00:00
Nick Mathewson
72e1f19249 various changelog edits 2018-05-15 15:06:43 -04:00
Isis Lovecruft
4c21d41407
rust: Export digests subcrate from our crypto crate. 2018-05-15 18:05:52 +00:00
Isis Lovecruft
d9c877a6e5
rust: Export crypto_rand::* functions from our external crate. 2018-05-15 18:03:18 +00:00
Isis Lovecruft
9988882c63
rust: Move rand crate into crypto parent crate. 2018-05-15 17:48:57 +00:00
Isis Lovecruft
2ac849da36
rust: Make Rng::new() methods public. 2018-05-15 17:45:09 +00:00
Nick Mathewson
c0eaaf403b run format-changelog 2018-05-15 12:34:12 -04:00
Nick Mathewson
e811bac837 use sortChanges to begin an 0.3.4.1-alpha changelog 2018-05-15 12:31:16 -04:00
Nick Mathewson
98aff146d3 Merge branch 'maint-0.3.3' 2018-05-15 09:32:45 -04:00
Nick Mathewson
6acbd4c112 Merge branch 'maint-0.3.2' into maint-0.3.3 2018-05-15 09:32:44 -04:00
Nick Mathewson
4aa3d511b2 Merge branch 'maint-0.3.1' into maint-0.3.2 2018-05-15 09:32:44 -04:00