diff options
| author | x2018 <xkernel.wang@foxmail.com> | 2021-10-22 22:50:27 +0800 |
|---|---|---|
| committer | Pauli <pauli@openssl.org> | 2021-10-27 08:38:30 +1000 |
| commit | d146811f6cce155eeb1a87396943c953acb08fb6 (patch) | |
| tree | 64740a768140dd293a2d4e5475e097ce3c7300ab /crypto/ec | |
| parent | 1682a8524652c4f1386852f0d0c1dec75895b7da (diff) | |
add checks for the return values of BN_new(), sk_RSA_PRIME_INFO_new_reserve(),
EVP_PKEY_CTX_new_from_pkey() and EVP_CIPHER_CTX_new().
Otherwise may result in memory errors.
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/16892)
(cherry picked from commit 9dddcd90a1350fa63486cbf3226c3eee79f9aff5)
Diffstat (limited to 'crypto/ec')
| -rw-r--r-- | crypto/ec/ec_asn1.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/crypto/ec/ec_asn1.c b/crypto/ec/ec_asn1.c index 31519137c6..6323131a22 100644 --- a/crypto/ec/ec_asn1.c +++ b/crypto/ec/ec_asn1.c @@ -1223,7 +1223,8 @@ ECDSA_SIG *d2i_ECDSA_SIG(ECDSA_SIG **psig, const unsigned char **ppin, long len) sig->r = BN_new(); if (sig->s == NULL) sig->s = BN_new(); - if (ossl_decode_der_dsa_sig(sig->r, sig->s, ppin, (size_t)len) == 0) { + if (sig->r == NULL || sig->s == NULL + || ossl_decode_der_dsa_sig(sig->r, sig->s, ppin, (size_t)len) == 0) { if (psig == NULL || *psig == NULL) ECDSA_SIG_free(sig); return NULL; |