diff options
Diffstat (limited to 'openssl/crypto/rsa/rsa_pmeth.c')
| -rw-r--r-- | openssl/crypto/rsa/rsa_pmeth.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/openssl/crypto/rsa/rsa_pmeth.c b/openssl/crypto/rsa/rsa_pmeth.c index ddda0ddc4..203635595 100644 --- a/openssl/crypto/rsa/rsa_pmeth.c +++ b/openssl/crypto/rsa/rsa_pmeth.c @@ -254,8 +254,14 @@ static int pkey_rsa_sign(EVP_PKEY_CTX *ctx, unsigned char *sig, return ret; ret = sltmp; } else if (rctx->pad_mode == RSA_X931_PADDING) { - if (!setup_tbuf(rctx, ctx)) + if ((size_t)EVP_PKEY_size(ctx->pkey) < tbslen + 1) { + RSAerr(RSA_F_PKEY_RSA_SIGN, RSA_R_KEY_SIZE_TOO_SMALL); + return -1; + } + if (!setup_tbuf(rctx, ctx)) { + RSAerr(RSA_F_PKEY_RSA_SIGN, ERR_R_MALLOC_FAILURE); return -1; + } memcpy(rctx->tbuf, tbs, tbslen); rctx->tbuf[tbslen] = RSA_X931_hash_id(EVP_MD_type(rctx->md)); ret = RSA_private_encrypt(tbslen + 1, rctx->tbuf, |