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path: root/crypto/openssl/crypto/dsa/dsa_ossl.c
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Diffstat (limited to 'crypto/openssl/crypto/dsa/dsa_ossl.c')
-rw-r--r--crypto/openssl/crypto/dsa/dsa_ossl.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/crypto/openssl/crypto/dsa/dsa_ossl.c b/crypto/openssl/crypto/dsa/dsa_ossl.c
index b9e7f3ea5c66..1dfbc250d2b0 100644
--- a/crypto/openssl/crypto/dsa/dsa_ossl.c
+++ b/crypto/openssl/crypto/dsa/dsa_ossl.c
@@ -244,6 +244,18 @@ static int dsa_do_verify(const unsigned char *dgst, int dgst_len, DSA_SIG *sig,
return -1;
}
+ if (BN_num_bits(dsa->q) != 160)
+ {
+ DSAerr(DSA_F_DSA_DO_VERIFY,DSA_R_BAD_Q_VALUE);
+ return -1;
+ }
+
+ if (BN_num_bits(dsa->p) > OPENSSL_DSA_MAX_MODULUS_BITS)
+ {
+ DSAerr(DSA_F_DSA_DO_VERIFY,DSA_R_MODULUS_TOO_LARGE);
+ return -1;
+ }
+
BN_init(&u1);
BN_init(&u2);
BN_init(&t1);