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Make sure a bad parameter to RSA_verify_PKCS1_PSS() doesn't lead to a crash.
[openssl.git]
/
crypto
/
rsa
/
rsa_pss.c
diff --git
a/crypto/rsa/rsa_pss.c
b/crypto/rsa/rsa_pss.c
index 7d5b4781a30bce66542d7866c4705f7cd74c3245..2e44194bdcd0be0398f56330f3429e6fedf6c5cf 100644
(file)
--- a/
crypto/rsa/rsa_pss.c
+++ b/
crypto/rsa/rsa_pss.c
@@
-81,6
+81,12
@@
int RSA_verify_PKCS1_PSS(RSA *rsa, const unsigned char *mHash,
EVP_MD_CTX ctx;
unsigned char H_[EVP_MAX_MD_SIZE];
EVP_MD_CTX ctx;
unsigned char H_[EVP_MAX_MD_SIZE];
+ if (Hash == NULL)
+ {
+ RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS, RSA_R_BAD_ARGUMENT);
+ goto err;
+ }
+
hLen = EVP_MD_size(Hash);
/*
* Negative sLen has special meanings:
hLen = EVP_MD_size(Hash);
/*
* Negative sLen has special meanings: