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authorJung-uk Kim <jkim@FreeBSD.org>2016-09-22 13:05:59 +0000
committerJung-uk Kim <jkim@FreeBSD.org>2016-09-22 13:05:59 +0000
commit2c14c598c3061ac2533f997352aa06a2266f44d9 (patch)
tree470894a14935f308eeac93c6cbf6cf25632e1cb1 /crypto/srp/srp_lib.c
parent47b11f985b9e0ff561a67e19674de6fbcf79281d (diff)
downloadsrc-vendor/openssl-1.0.1.tar.gz
src-vendor/openssl-1.0.1.zip
Notes
Notes: svn path=/vendor-crypto/openssl/dist-1.0.1/; revision=306191 svn path=/vendor-crypto/openssl/1.0.1u/; revision=306192; tag=vendor/openssl/1.0.1u
Diffstat (limited to 'crypto/srp/srp_lib.c')
-rw-r--r--crypto/srp/srp_lib.c20
1 files changed, 13 insertions, 7 deletions
diff --git a/crypto/srp/srp_lib.c b/crypto/srp/srp_lib.c
index e9a2e058f687..e310946e073b 100644
--- a/crypto/srp/srp_lib.c
+++ b/crypto/srp/srp_lib.c
@@ -159,8 +159,7 @@ BIGNUM *SRP_Calc_server_key(BIGNUM *A, BIGNUM *v, BIGNUM *u, BIGNUM *b,
if (u == NULL || A == NULL || v == NULL || b == NULL || N == NULL)
return NULL;
- if ((bn_ctx = BN_CTX_new()) == NULL ||
- (tmp = BN_new()) == NULL || (S = BN_new()) == NULL)
+ if ((bn_ctx = BN_CTX_new()) == NULL || (tmp = BN_new()) == NULL)
goto err;
/* S = (A*v**u) ** b */
@@ -169,8 +168,12 @@ BIGNUM *SRP_Calc_server_key(BIGNUM *A, BIGNUM *v, BIGNUM *u, BIGNUM *b,
goto err;
if (!BN_mod_mul(tmp, A, tmp, N, bn_ctx))
goto err;
- if (!BN_mod_exp(S, tmp, b, N, bn_ctx))
- goto err;
+
+ S = BN_new();
+ if (S != NULL && !BN_mod_exp(S, tmp, b, N, bn_ctx)) {
+ BN_free(S);
+ S = NULL;
+ }
err:
BN_CTX_free(bn_ctx);
BN_clear_free(tmp);
@@ -267,7 +270,7 @@ BIGNUM *SRP_Calc_client_key(BIGNUM *N, BIGNUM *B, BIGNUM *g, BIGNUM *x,
if ((tmp = BN_new()) == NULL ||
(tmp2 = BN_new()) == NULL ||
- (tmp3 = BN_new()) == NULL || (K = BN_new()) == NULL)
+ (tmp3 = BN_new()) == NULL)
goto err;
if (!BN_mod_exp(tmp, g, x, N, bn_ctx))
@@ -283,8 +286,11 @@ BIGNUM *SRP_Calc_client_key(BIGNUM *N, BIGNUM *B, BIGNUM *g, BIGNUM *x,
goto err;
if (!BN_mod_add(tmp2, a, tmp3, N, bn_ctx))
goto err;
- if (!BN_mod_exp(K, tmp, tmp2, N, bn_ctx))
- goto err;
+ K = BN_new();
+ if (K != NULL && !BN_mod_exp(K, tmp, tmp2, N, bn_ctx)) {
+ BN_free(K);
+ K = NULL;
+ }
err:
BN_CTX_free(bn_ctx);