As the loop discards cookies without domain set. This bug would lead to
qsort() trying to sort uninitialized pointers. We have however not found
it a security problem.
Reported-by: Paul Dreik
Closes#4386
If the input hostname is "[", hlen will underflow to max of size_t when
it is subtracted with 2.
hostname[hlen] will then cause a warning by ubsanitizer:
runtime error: addition of unsigned offset to 0x<snip> overflowed to
0x<snip>
I think that in practice, the generated code will work, and the output
of hostname[hlen] will be the first character "[".
This can be demonstrated by the following program (tested in both clang
and gcc, with -O3)
int main() {
char* hostname=strdup("[");
size_t hlen = strlen(hostname);
hlen-=2;
hostname++;
printf("character is %d\n",+hostname[hlen]);
free(hostname-1);
}
I found this through fuzzing, and even if it seems harmless, the proper
thing is to return early with an error.
Closes#4389
CURLU_NO_AUTHORITY is intended for use with unknown schemes (i.e. not
"file:///") to override cURL's default demand that an authority exists.
Closes#4349
If the :authority pseudo header field doesn't contain an explicit port,
we assume it is valid for the default port, instead of rejecting the
request for all ports.
Ref: https://curl.haxx.se/mail/lib-2019-09/0041.htmlCloses#4365
If you set the same URL for target as for DoH (and it isn't a DoH
server), like "https://example.com" in both, the easy handles used for
the DoH requests could be left "dangling" and end up not getting freed.
Reported-by: Paul Dreik
Closes#4366
The undefined behaviour is annoying when running fuzzing with
sanitizers. The codegen is the same, but the meaning is now not up for
dispute. See https://cppinsights.io/s/516a2ff4
By incrementing the pointer first, both gcc and clang recognize this as
a bswap and optimizes it to a single instruction. See
https://godbolt.org/z/994ZpxCloses#4350
Added unit test case 1655 to verify.
Close#4352
the code correctly finds the flaws in the old code,
if one temporarily restores doh.c to the old version.
This is a protocol violation but apparently there are legacy proprietary
servers doing this.
Added test 336 and 337 to verify.
Reported-by: Philippe Marguinaud
Closes#4339
For FTPS transfers, curl gets close_notify on the data connection
without that being a signal to close the control connection!
Regression since 3f5da4e59a (7.65.0)
Reported-by: Zenju on github
Reviewed-by: Jay Satiro
Fixes#4329Closes#4340
Despite ldapp_err2string being documented by MS as returning a
PCHAR (char *), when UNICODE it is mapped to ldap_err2stringW and
returns PWCHAR (wchar_t *).
We have lots of code that expects ldap_err2string to return char *,
most of it failf used like this:
failf(data, "LDAP local: Some error: %s", ldap_err2string(rc));
Closes https://github.com/curl/curl/pull/4272
It needs to parse correctly. Otherwise it could be tricked into letting
through a-f using host names that libcurl would then resolve. Like
'[ab.be]'.
Reported-by: Thomas Vegas
Closes#4315
OpenSSL 1.1.0 adds SSL_CTX_set_<min|max>_proto_version() that we now use
when available. Existing code is preserved for older versions of
OpenSSL.
Closes#4304
Otherwise, a three byte response would make the smtp_state_ehlo_resp()
function misbehave.
Credit to OSS-Fuzz
Bug: https://crbug.com/oss-fuzz/16918
Assisted-by: Max Dymond
Closes#4287
This allows the function to figure out if a unix domain socket has a
file name or not associated with it! When a socket is created with
socketpair(), as done in the fuzzer testing, the path struct member is
uninitialized and must not be accessed.
Bug: https://crbug.com/oss-fuzz/16699Closes#4283
It could otherwise return an error even when closed correctly if GOAWAY
had been received previously.
Reported-by: Tom van der Woerdt
Fixes#4267Closes#4268
For a long time (since 7.28.1) we've returned error when setting the
value to 1 to make applications notice that we stopped supported the old
behavior for 1. Starting now, we treat 1 and 2 exactly the same.
Closes#4241
The quiche debug callback is global and can only be initialized once, so
make sure we don't do it multiple times (e.g. if multiple requests are
executed).
In addition this initializes the callback before the connection is
created, so we get logs for the handshake as well.
Closes#4236
When a username and password are provided in the URL, they were wrongly
removed from the stored URL so that subsequent uses of the same URL
wouldn't find the crendentials. This made doing HTTP auth with multiple
connections (like Digest) mishave.
Regression from 46e164069d (7.62.0)
Test case 335 added to verify.
Reported-by: Mike Crowe
Fixes#4228Closes#4229
SSL_VersionRangeGetDefault returns (TLSv1.0, TLSv1.2) as supported
range in NSS 3.45. It looks like the intention is to raise the minimum
version rather than lowering the maximum, so adjust accordingly. Note
that the caller (nss_setup_connect) initializes the version range to
(TLSv1.0, TLSv1.3), so there is no need to check for >= TLSv1.0 again.
Closes#4187
Reviewed-by: Daniel Stenberg
Reviewed-by: Kamil Dudka
This commit makes sending HTTP/3 request with nghttp3 work. It
minimally receives HTTP response and calls nghttp3 callbacks, but no
processing is made at the moment.
Closes#4215
This avoids EBADF errors from EPOLL_CTL_DEL operations in the
ephiperfifo.c example. EBADF is dangerous in multi-threaded
applications where I rely on epoll_ctl to operate on the same
epoll description from different threads.
Follow-up to eb9a604f8d
Bug: https://curl.haxx.se/mail/lib-2019-08/0026.htmlCloses#4211
So that users can mask in/out specific HTTP versions when Alt-Svc is
used.
- Removed "h2c" and updated test case accordingly
- Changed how the altsvc struct is laid out
- Added ifdefs to make the unittest run even in a quiche-tree
Closes#4201
RFC 7838 section 5:
When using an alternative service, clients SHOULD include an Alt-Used
header field in all requests.
Removed CURLALTSVC_ALTUSED again (feature is still EXPERIMENTAL thus
this is deemed ok).
You can disable sending this header just like you disable any other HTTP
header in libcurl.
Closes#4199
Even though it cannot fall-back to a lower HTTP version automatically. The
safer way to upgrade remains via CURLOPT_ALTSVC.
CURLOPT_H3 no longer has any bits that do anything and might be removed
before we remove the experimental label.
Updated the curl tool accordingly to use "--http3".
Closes#4197
This is only the libcurl part that provides the information. There's no
user of the parsed value. This change includes three new tests for the
parser.
Ref: #3794
Added the ability for the calling program to specify the authorisation
identity (authzid), the identity to act as, in addition to the
authentication identity (authcid) and password when using SASL PLAIN
authentication.
Fixes#3653Closes#3790
NOTE: This commit was cherry-picked and is part of a series of commits
that added the authzid feature for upcoming 7.66.0. The series was
temporarily reverted in db8ec1f so that it would not ship in a 7.65.x
patch release.
Closes https://github.com/curl/curl/pull/4186
Repeatedly we see problems where using curl_multi_wait() is difficult or
just awkward because if it has no file descriptor to wait for
internally, it returns immediately and leaves it to the caller to wait
for a small amount of time in order to avoid occasional busy-looping.
This is often missed or misunderstood, leading to underperforming
applications.
This change introduces curl_multi_poll() as a replacement drop-in
function that accepts the exact same set of arguments. This function
works identically to curl_multi_wait() - EXCEPT - for the case when
there's nothing to wait for internally, as then this function will by
itself wait for a "suitable" short time before it returns. This
effectiely avoids all risks of busy-looping and should also make it less
likely that apps "over-wait".
This also changes the curl tool to use this funtion internally when
doing parallel transfers and changes curl_easy_perform() to use it
internally.
Closes#4163
As the plan has been laid out in DEPRECATED. Update docs accordingly and
verify in test 1174. Now requires the option to be set to allow HTTP/0.9
responses.
Closes#4191
