The Java client implementation of the 3SHAKE mitigation incorrectly
rejects initial handshakes when all of the following are true:
1. The ClientHello offered a session.
2. The session was successfully resumed previously.
3. The server declines the session.
4. The server sends a certificate with a different SAN list than in the
previous session.
(Note the 3SHAKE mitigation is to reject certificates changes on
renegotiation, while Java's logic applies to initial handshakes as
well.)
The end result is long-lived Java clients break on some certificate
rotations. Fingerprint Java clients and decline all offered sessions.
This avoids (2) while still introducing new sessions to clear any
existing problematic sessions.
See also b/65323005.
Change-Id: Ib2b84c69b5ecba285ffb8c4d03de5626838d794e
Reviewed-on: https://boringssl-review.googlesource.com/20184
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In particular, this starts a new DTLS corpus.
Bug: 124
Change-Id: I0fa0b38ac1cd213cef99badde693e75ed7357ab4
Reviewed-on: https://boringssl-review.googlesource.com/20108
Reviewed-by: David Benjamin <davidben@google.com>
Bug: 124
Change-Id: Iff02be9df2806572e6d3f860b448f598f85778c3
Reviewed-on: https://boringssl-review.googlesource.com/20107
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There's a lot of duplicated code between the two. This is in preparation
for adding two more of these fuzzers, this time for DTLS.
Bug: 124
Change-Id: I8ca2a02d599e2c88e30838d04b7cf07d4221aa76
Reviewed-on: https://boringssl-review.googlesource.com/20106
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Found with libFuzzer.
Bug: chromium:763097
Change-Id: I806bcfc714c0629ff7f725e37f4c0045d4ec7ac6
Reviewed-on: https://boringssl-review.googlesource.com/20105
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This guards against the name constraints check consuming large amounts
of CPU time when certificates in the presented chain contain an
excessive number of names (specifically subject email names or subject
alternative DNS names) and/or name constraints.
Name constraints checking compares the names presented in a certificate
against the name constraints included in a certificate higher up in the
chain using two nested for loops.
Move the name constraints check so that it happens after signature
verification so peers cannot exploit this using a chain with invalid
signatures. Also impose a hard limit on the number of name constraints
check loop iterations to further mitigate the issue.
Thanks to NCC for finding this issue.
Change-Id: I112ba76fe75d1579c45291042e448850b830cbb7
Reviewed-on: https://boringssl-review.googlesource.com/19164
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c2i_ASN1_BIT_STRING takes length as a long but uses it as an int. Check bounds
before doing so. Previously, excessively large inputs to the function could
write a single byte outside the target buffer. (This is unreachable as
asn1_ex_c2i already uses int for the length.)
Thanks to NCC for finding this issue.
Change-Id: I7ae42214ca620d4159fa01c942153717a7647c65
Reviewed-on: https://boringssl-review.googlesource.com/19204
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We forgot to reset that value.
Change-Id: Ic869cb61da332983cc40223cbbdf23b455dd9766
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The new_session_cb callback should not be run if SSL_SESS_CACHE_CLIENT
is off.
Change-Id: I1ab320f33688f186b241d95c81775331a5c5b1a1
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Right now we report the per-connection value during the handshake and
the per-session value after the handshake. This also trims our tickets
slightly by removing a largely unused field from SSL_SESSION.
Putting it on SSL_HANDSHAKE would be better, but sadly a number of
bindings-type APIs expose it after the handshake.
Change-Id: I6a1383f95da9b1b141b9d6adadc05ee1e458a326
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Allocations by |OPENSSL_malloc| are prefixed with their length.
|OPENSSL_free| zeros the allocation before calling free(), eliminating
the need for a separate call to |OPENSSL_cleanse| for sensitive data.
This change will be followed up by the cleanup in
https://boringssl-review.googlesource.com/c/boringssl/+/19824.
Change-Id: Ie272f07e9248d7d78af9aea81dacec0fdb7484c4
Reviewed-on: https://boringssl-review.googlesource.com/19544
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Change-Id: I4dea223825da4e4ab0bc789e738f470f5fe5d659
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Rather than clear them, even on failure, detect if an individual test
failed and dump the error queue there. We already do this at the GTest
level in ErrorTestEventListener, but that is too coarse-grained for the
file tests.
Change-Id: I3437626dcf3ec43f6fddd98153b0af73dbdcce84
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We have no tests for encryption right now, and evp_tests.txt needs to
force RSA-PSS to have salt length 0, even though other salt values are
more common. This also lets us test the salt length -2 silliness.
Change-Id: I30f52d36c38732c9b63a02c66ada1d08488417d4
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We do not expose EVP_PKEY_CTX_ctrl, so we can freely change the
semantics of EVP_PKEY_CTRL_RSA_OAEP_LABEL. That means we can pass in an
actual size_t rather than an int.
Not that anyone is actually going to exceed an INT_MAX-length RSA-OAEP
label.
Change-Id: Ifc4eb296ff9088c8815f4f8cd88100a407e4d969
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It was pointed out that we have no test coverage of this. Fix this. Test
vector generated using Go's implementation.
Change-Id: Iddbc50d3b422e853f8afd50117492f4666a47373
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By resolving Channel ID earlier, we can take advantage of
flight-by-flight writes.
Change-Id: I31265bda3390eb1faec976ac13d7a01ba5f6dd5f
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This fixes a regression in Conscrypt added by
https://boringssl-review.googlesource.com/19144. SSL_get_session
otherwise attempts to return hs->new_session, but that has been released
at this point.
Change-Id: I55b41cbefb65b3ae3cfbfad72f6338bd66db3341
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For historical reasons, TLS allows ServerHellos (and ClientHellos)
without extensions to omit the extensions fields entirely.
https://github.com/openssl/openssl/pull/4296 reports this is even
necessary for compatibility with extension-less clients. We continue to
do so, but add a test for it anyway.
Change-Id: I63c2e3a5f298674eb21952fca6914dad07d7c245
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That's the last of it!
Change-Id: I93d1f5ab7e95b2ad105c34b24297a0bf77625263
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ctx->cached_x509_client_CA needs to be protected under a lock since
SSL_CTX_get_client_CA_list is a logically const operation. The fallback
in SSL_get_client_CA_list was not using this lock.
Change-Id: I2431218492d1a853cc1a59c0678b0b50cd9beab2
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That function actually got a little complicated after the CRYPTO_BUFFER
work.
Change-Id: Ib679a9f2bcc2c974fe059af49805b8200e77bd03
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The fuzzer should discover this instantly, but it's a sufficiently
important failure case (don't accidentally drop the certificate on the
floor or anything weird like that) that it's probably worth testing.
Change-Id: I684932c2e8a88fcf9b2318bf46980d312c66f6ef
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Change-Id: I692424f05f543c98a994a444f0303ea0bda7c14f
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Easy bit of test coverage.
Change-Id: I0362fca926d82869b512e3c40dc53d6dc771dfc8
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Bug: 128
Change-Id: Ief3779b1c43dd34a154a0f1d2f94d0da756bc07a
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OpenSSL's API has a non-fatal "soft fail" mode (can we get rid of
this?), so we should set the flag even if config->verify_fail is true.
Change-Id: I5a2a3290b9bf45c682f3a629a8b6474b1090fc6e
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Consumers have been switched to the new ones.
Change-Id: I7a8ec6308775a105a490882c97955daed12a2c2c
Reviewed-on: https://boringssl-review.googlesource.com/19605
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We have fancy -on-initial and -on-resume prefixes now that can apply to
every flag.
Change-Id: I6195a97f663ebc94db320ca35889c213c700a976
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We currently forbid the server certificate from changing on
renegotiation. This means re-verifying the certificate is pointless and
indeed the callback being called again seems to surprise consumers more
than anything else.
Carry over the initial handshake's SCT lists and OCSP responses (don't
enforce they don't change since the server may have, say, picked up new
OCSP responses in the meantime), ignore new ones received on
renegotiation, and don't bother redoing verification.
For our purposes, TLS 1.2 renegotiation is an overcomplicated TLS 1.3
KeyUpdate + post-handshake auth. The server is not allowed to change
identity.
Bug: 126
Change-Id: I0dae85bcf243943b1a5a97fa4f30f100c9e6e41e
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We do not call the new_session callback on renego, but a consumer using
SSL_get_session may still attempt to resume such a session. Leave the
not_resumable flag unset. Also document this renegotiation restriction.
Change-Id: I5361f522700b02edf5272ba5089c0777e5dafb09
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linux/random.h is not really needed if FIPS mode is not enabled. Note
that use of the getrandom syscall is unaffected by this header.
Fixes commit bc7daec4d8
Change-Id: Ia367aeffb3f2802ba97fd1507de0b718d9ac2c55
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I messed up https://boringssl-review.googlesource.com/8883 and caused
both sides to believe they had sent the final Finished. Use next_message
to detect whether our last flight had a reply.
Change-Id: Ia4d8c8eefa818c9a69acc94d63c9c863293c3cf5
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They both can be moderately large. This should hopefully relieve a little
memory pressure from both connections to hosts which serve SCTs and
TLS 1.3's single-use tickets.
Change-Id: I034bbf057fe5a064015a0f554b3ae9ea7797cd4e
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No need to have two of these.
Change-Id: I5ff1ba24757828d8113321cd3262fed3d4defcdb
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One less macro to worry about in bcm.c.
Change-Id: I321084c0d4ed1bec38c541b04f5b3468350c6eaa
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