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Ensure that NULL r and s parameters cannot be set on DSA_SIG/ECDSA_SIGs.
[openssl.git]
/
crypto
/
dsa
/
dsa_asn1.c
diff --git
a/crypto/dsa/dsa_asn1.c
b/crypto/dsa/dsa_asn1.c
index f2818f3ab6c36b7318d6bfc9607beaf5cc4e672f..f79e1d1404a5ce811abefe3c9b82731bc20bd2f6 100644
(file)
--- a/
crypto/dsa/dsa_asn1.c
+++ b/
crypto/dsa/dsa_asn1.c
@@
-34,6
+34,8
@@
void DSA_SIG_get0(BIGNUM **pr, BIGNUM **ps, const DSA_SIG *sig)
int DSA_SIG_set0(DSA_SIG *sig, BIGNUM *r, BIGNUM *s)
{
+ if (r == NULL || s == NULL)
+ return 0;
BN_clear_free(sig->r);
BN_clear_free(sig->s);
sig->r = r;