- wolfSSL_i2d_OCSP_REQUEST_bio: save/restore pointer before i2d call
that advances it, preventing BIO_write from wrong offset and heap
corruption on free
- wolfSSL_d2i_OCSP_RESPONSE: remove (unsigned char) cast that truncated
pointer advance to 8 bits, breaking responses larger than 255 bytes
- wolfSSL_OCSP_CERTID_dup: deep-copy CertStatus to prevent double-free
when both original and duplicate are freed
- wolfSSL_i2d_OCSP_RESPONSE: add NULL check on response parameter
- wolfSSL_i2d_OCSP_REQUEST: advance *data pointer per i2d convention
- FreeOCSP: NULL-check ocsp->cm before dereferencing for heap
- Fix WOLFSSL_LEAVE strings to match actual function names in
wc_CheckCertOcspResponse, GetOcspEntry, GetOcspStatus,
CheckOcspResponse, CheckOcspRequest
Add test for CERTID dup (double-free confirmed under ASAN without fix)
and pointer advancement assertions for d2i_OCSP_RESPONSE callers.
Reported in: ZD21469
- test_wolfSSL_DTLS_fragment_buckets: rewrite to use Expect framework
- Correctly handle buckets between other buckets that don't touch
- Fix DTLS fragment combine when data overlaps cur from the left
wolfcrypt/src/tfm.c and wolfssl/wolfcrypt/tfm.h: fix for -Wdiscarded-qualifiers in ecc_check_order_minus_1().
wolfssl/wolfcrypt/types.h: in WC_BARRIER(), use XFENCE() too, for best possible barrier. fixes an ARM32 -Ofast -Wmaybe-uninitialized in blake2s_init_key().
wolfcrypt/src/asn_orig.c: set Stored flag after each allocation of a member that needs it.
wolfcrypt/src/signature.c: in wc_SignatureGetSize(), provide for legacy FIPS non-const-arg wc_ecc_sig_size() and wc_RsaEncryptSize().
.github/workflows/wolfCrypt-Wconversion.yml: Add -Wcast-qual to all scenarios.
wolfssl/wolfcrypt/signature.h, wolfcrypt/src/signature.c, doc/dox_comments/header_files/signature.h:
Remove incorrect const qualifier on the key argument in
* wc_SignatureVerifyHash()
* wc_SignatureVerify()
* wc_SignatureGenerateHash()
* wc_SignatureGenerateHash_ex()
* wc_SignatureGenerate()
* wc_SignatureGenerate_ex()
This fixes UB code patterns throughout signature.c. key is inherently
accessed readwrite by the underlying low level crypto. Fortunately, wolfCrypt
has no APIs/methods to allow actual const MPI key objects, therefore these
seeming breaking API changes can't actually break any users.
globally:
* Add const qualifiers to all struct pointer members that are assigned values
computed from const pointers.
* Add const qualifiers to intermediate casts for accessors and read-only
dereference constructs, as needed for -Wcast-qual hygiene, e.g. for a macro
GET_U16(a), use (*(const word16*)(a)) rather than (*(word16*)(a)).
* Add const qualifiers to internal declarations, and remove illegal casts, as
needed for -Wcast-qual hygiene.
* Add missing const qualifiers to all casts for argument, operand, and
assignment type agreement, as needed for -Wcast-qual hygiene, e.g.
"*data = (const byte*)dataASN->data.ref.data" rather than
"*data = (byte*)dataASN->data.ref.data".
wolfssl/wolfcrypt/asn.h, wolfssl/wolfcrypt/asn_public.h, wolfcrypt/src/asn.c, wolfcrypt/src/asn_orig.c:
* Add additional lifecycle management for object members that are only sometimes locally allocated:
DNS_entry.nameStored
DNS_entry.ipStringStored
DNS_entry.ridStringStored
wolfssl/wolfcrypt/types.h: add WC_BARRIER() macro -- a portable construct that
prevents compiler optimizers from reordering operations across the barrier.
wolfssl/wolfcrypt/blake2-impl.h, wolfcrypt/src/blake2s.c, wolfcrypt/src/blake2b.c:
* In blake2b_init(), blake2b_init_key(), blake2s_init(), and
blake2s_init_key(), refactor blake2b_param initialization using WC_BARRIER()
(fixes volatile abuse that triggered -Wcast-qual).
* Remove the residual and unused WOLFSSL_BLAKE2[BS]_INIT_EACH_FIELD code.
wolfcrypt/src/ecc.c and wolfssl/wolfcrypt/ecc.h:
Remove incorrect const qualifier on curve arg to wc_ecc_free_curve() (internal function).
dtls13.c:
- Fix wrong return value in Dtls13SendFragmentedInternal error path (return outputSz instead of recordLength)
- Fix incomplete bounds check in Dtls13SendFragmented to account for DTLS_HANDSHAKE_HEADER_SZ
- Fix wrong WOLFSSL_ENTER trace string in Dtls13EpochCopyKeys
tls13.c:
- Remove wrong (byte) cast on cookie->len passed to TlsCheckCookie
- Add missing bounds check on PSK identityLen in SetupPskKey before copying to client_identity
- Fix data race on static header array in ExpectedResumptionSecret
- Add defensive underflow check in EncryptTls13 for consistency with DecryptTls13
- Fix wrong return variable in DTLS 1.3 Finished send error path (return dtlsRet instead of ret)
- Add missing SM3 case and default in Tls13_Exporter hash switch to prevent NULL dereference
- Initialize *outSz to 0 in wolfSSL_write_early_data to match wolfSSL_read_early_data
- Add bounds check for bindersLen against helloSz in CheckPreSharedKeys
- Fix resource leak and hash state corruption in ExpectedResumptionSecret error paths
- Fix memory leak of rsaSigBuf in dual-alg RSA+RSA CertificateVerify
- Guard against word32 underflow in inputLength - HANDSHAKE_HEADER_SZ in DoTls13HandShakeMsg
- Fix swapped side parameter in DeriveFinishedSecret for server-side Finished processing
- Fix no_mac fall-through in ssl_handshake_md to return NULL instead of wrong digest
- Fix strict aliasing violation in FindPsk PSK key size check
- Remove duplicate !ssl->options.dtls check in TLS 1.3 middlebox compat condition
tests:
- Add regression tests for wolfSSL_write_early_data outSz initialization and DTLS 1.3 Finished send error propagation
Juliusz Sosinowicz
Daniel Pouzzner
Eric Blankenhorn
Kareem
Tobias Frauenschläger
JacobBarthelmeh
Paul Adelsbach
Reda Chouk
Anthony Hu