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openssl/0012-Disable-explicit-ec.patch
Dmitry Belyavskiy fa5df9d74b Forbid explicit curves when created via EVP_PKEY_fromdata 
Resolves: RHEL-5304
2023-10-17 13:26:14 +02:00

211 lines
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diff -up openssl-3.0.1/crypto/ec/ec_asn1.c.disable_explicit_ec openssl-3.0.1/crypto/ec/ec_asn1.c
--- openssl-3.0.1/crypto/ec/ec_asn1.c.disable_explicit_ec 2022-03-22 13:10:45.718077845 +0100
+++ openssl-3.0.1/crypto/ec/ec_asn1.c 2022-03-22 13:12:46.626599016 +0100
@@ -895,6 +895,12 @@ EC_GROUP *d2i_ECPKParameters(EC_GROUP **
if (params->type == ECPKPARAMETERS_TYPE_EXPLICIT)
group->decoded_from_explicit_params = 1;
+ if (EC_GROUP_check_named_curve(group, 0, NULL) == NID_undef) {
+ EC_GROUP_free(group);
+ ECPKPARAMETERS_free(params);
+ return NULL;
+ }
+
if (a) {
EC_GROUP_free(*a);
*a = group;
@@ -954,6 +959,11 @@ EC_KEY *d2i_ECPrivateKey(EC_KEY **a, con
goto err;
}
+ if (EC_GROUP_check_named_curve(ret->group, 0, NULL) == NID_undef) {
+ ERR_raise(ERR_LIB_EC, EC_R_UNKNOWN_GROUP);
+ goto err;
+ }
+
ret->version = priv_key->version;
if (priv_key->privateKey) {
diff --git a/crypto/ec/ec_lib.c b/crypto/ec/ec_lib.c
index a84e088c19..6c37bf78ae 100644
--- a/crypto/ec/ec_lib.c
+++ b/crypto/ec/ec_lib.c
@@ -1724,6 +1724,11 @@ EC_GROUP *EC_GROUP_new_from_params(const OSSL_PARAM params[],
goto err;
}
if (named_group == group) {
+ if (EC_GROUP_check_named_curve(group, 0, NULL) == NID_undef) {
+ ERR_raise(ERR_LIB_EC, EC_R_UNKNOWN_GROUP);
+ goto err;
+ }
+#if 0
/*
* If we did not find a named group then the encoding should be explicit
* if it was specified
@@ -1739,6 +1744,7 @@ EC_GROUP *EC_GROUP_new_from_params(const OSSL_PARAM params[],
goto err;
}
EC_GROUP_set_asn1_flag(group, OPENSSL_EC_EXPLICIT_CURVE);
+#endif
} else {
EC_GROUP_free(group);
group = named_group;
diff --git a/test/ectest.c b/test/ectest.c
index 4890b0555e..e11aec5b3b 100644
--- a/test/ectest.c
+++ b/test/ectest.c
@@ -2301,10 +2301,11 @@ static int do_test_custom_explicit_fromdata(EC_GROUP *group, BN_CTX *ctx,
if (!TEST_ptr(params = OSSL_PARAM_BLD_to_param(bld))
|| !TEST_ptr(pctx = EVP_PKEY_CTX_new_from_name(NULL, "EC", NULL))
|| !TEST_int_gt(EVP_PKEY_fromdata_init(pctx), 0)
- || !TEST_int_gt(EVP_PKEY_fromdata(pctx, &pkeyparam,
+ || !TEST_int_le(EVP_PKEY_fromdata(pctx, &pkeyparam,
EVP_PKEY_KEY_PARAMETERS, params), 0))
goto err;
-
+/* As creating the key should fail, the rest of the test is pointless */
+# if 0
/*- Check that all the set values are retrievable -*/
/* There should be no match to a group name since the generator changed */
@@ -2433,6 +2434,7 @@ static int do_test_custom_explicit_fromdata(EC_GROUP *group, BN_CTX *ctx,
#endif
)
goto err;
+#endif
ret = 1;
err:
BN_free(order_out);
@@ -2714,21 +2716,21 @@ static int custom_params_test(int id)
/* Compute keyexchange in both directions */
if (!TEST_ptr(pctx1 = EVP_PKEY_CTX_new(pkey1, NULL))
- || !TEST_int_eq(EVP_PKEY_derive_init(pctx1), 1)
- || !TEST_int_eq(EVP_PKEY_derive_set_peer(pctx1, pkey2), 1)
+ || !TEST_int_le(EVP_PKEY_derive_init(pctx1), 0)
+/* || !TEST_int_eq(EVP_PKEY_derive_set_peer(pctx1, pkey2), 1)
|| !TEST_int_eq(EVP_PKEY_derive(pctx1, NULL, &sslen), 1)
|| !TEST_int_gt(bsize, sslen)
- || !TEST_int_eq(EVP_PKEY_derive(pctx1, buf1, &sslen), 1))
+ || !TEST_int_eq(EVP_PKEY_derive(pctx1, buf1, &sslen), 1)*/)
goto err;
if (!TEST_ptr(pctx2 = EVP_PKEY_CTX_new(pkey2, NULL))
- || !TEST_int_eq(EVP_PKEY_derive_init(pctx2), 1)
- || !TEST_int_eq(EVP_PKEY_derive_set_peer(pctx2, pkey1), 1)
+ || !TEST_int_le(EVP_PKEY_derive_init(pctx2), 1)
+/* || !TEST_int_eq(EVP_PKEY_derive_set_peer(pctx2, pkey1), 1)
|| !TEST_int_eq(EVP_PKEY_derive(pctx2, NULL, &t), 1)
|| !TEST_int_gt(bsize, t)
|| !TEST_int_le(sslen, t)
- || !TEST_int_eq(EVP_PKEY_derive(pctx2, buf2, &t), 1))
+ || !TEST_int_eq(EVP_PKEY_derive(pctx2, buf2, &t), 1) */)
goto err;
-
+#if 0
/* Both sides should expect the same shared secret */
if (!TEST_mem_eq(buf1, sslen, buf2, t))
goto err;
@@ -2780,7 +2782,7 @@ static int custom_params_test(int id)
/* compare with previous result */
|| !TEST_mem_eq(buf1, t, buf2, sslen))
goto err;
-
+#endif
ret = 1;
err:
diff -up openssl-3.0.1/test/endecode_test.c.disable_explicit_ec openssl-3.0.1/test/endecode_test.c
--- openssl-3.0.1/test/endecode_test.c.disable_explicit_ec 2022-03-21 16:55:46.005558779 +0100
+++ openssl-3.0.1/test/endecode_test.c 2022-03-21 16:56:12.636792762 +0100
@@ -57,7 +57,7 @@ static BN_CTX *bnctx = NULL;
static OSSL_PARAM_BLD *bld_prime_nc = NULL;
static OSSL_PARAM_BLD *bld_prime = NULL;
static OSSL_PARAM *ec_explicit_prime_params_nc = NULL;
-static OSSL_PARAM *ec_explicit_prime_params_explicit = NULL;
+/*static OSSL_PARAM *ec_explicit_prime_params_explicit = NULL;*/
# ifndef OPENSSL_NO_EC2M
static OSSL_PARAM_BLD *bld_tri_nc = NULL;
@@ -990,9 +990,9 @@ IMPLEMENT_TEST_SUITE_LEGACY(EC, "EC")
DOMAIN_KEYS(ECExplicitPrimeNamedCurve);
IMPLEMENT_TEST_SUITE(ECExplicitPrimeNamedCurve, "EC", 1)
IMPLEMENT_TEST_SUITE_LEGACY(ECExplicitPrimeNamedCurve, "EC")
-DOMAIN_KEYS(ECExplicitPrime2G);
-IMPLEMENT_TEST_SUITE(ECExplicitPrime2G, "EC", 0)
-IMPLEMENT_TEST_SUITE_LEGACY(ECExplicitPrime2G, "EC")
+/*DOMAIN_KEYS(ECExplicitPrime2G);*/
+/*IMPLEMENT_TEST_SUITE(ECExplicitPrime2G, "EC", 0)*/
+/*IMPLEMENT_TEST_SUITE_LEGACY(ECExplicitPrime2G, "EC")*/
# ifndef OPENSSL_NO_EC2M
DOMAIN_KEYS(ECExplicitTriNamedCurve);
IMPLEMENT_TEST_SUITE(ECExplicitTriNamedCurve, "EC", 1)
@@ -1318,7 +1318,7 @@ int setup_tests(void)
|| !create_ec_explicit_prime_params_namedcurve(bld_prime_nc)
|| !create_ec_explicit_prime_params(bld_prime)
|| !TEST_ptr(ec_explicit_prime_params_nc = OSSL_PARAM_BLD_to_param(bld_prime_nc))
- || !TEST_ptr(ec_explicit_prime_params_explicit = OSSL_PARAM_BLD_to_param(bld_prime))
+/* || !TEST_ptr(ec_explicit_prime_params_explicit = OSSL_PARAM_BLD_to_param(bld_prime))*/
# ifndef OPENSSL_NO_EC2M
|| !TEST_ptr(bld_tri_nc = OSSL_PARAM_BLD_new())
|| !TEST_ptr(bld_tri = OSSL_PARAM_BLD_new())
@@ -1346,7 +1346,7 @@ int setup_tests(void)
TEST_info("Generating EC keys...");
MAKE_DOMAIN_KEYS(EC, "EC", EC_params);
MAKE_DOMAIN_KEYS(ECExplicitPrimeNamedCurve, "EC", ec_explicit_prime_params_nc);
- MAKE_DOMAIN_KEYS(ECExplicitPrime2G, "EC", ec_explicit_prime_params_explicit);
+/* MAKE_DOMAIN_KEYS(ECExplicitPrime2G, "EC", ec_explicit_prime_params_explicit);*/
# ifndef OPENSSL_NO_EC2M
MAKE_DOMAIN_KEYS(ECExplicitTriNamedCurve, "EC", ec_explicit_tri_params_nc);
MAKE_DOMAIN_KEYS(ECExplicitTri2G, "EC", ec_explicit_tri_params_explicit);
@@ -1389,8 +1389,8 @@ int setup_tests(void)
ADD_TEST_SUITE_LEGACY(EC);
ADD_TEST_SUITE(ECExplicitPrimeNamedCurve);
ADD_TEST_SUITE_LEGACY(ECExplicitPrimeNamedCurve);
- ADD_TEST_SUITE(ECExplicitPrime2G);
- ADD_TEST_SUITE_LEGACY(ECExplicitPrime2G);
+/* ADD_TEST_SUITE(ECExplicitPrime2G);*/
+/* ADD_TEST_SUITE_LEGACY(ECExplicitPrime2G);*/
# ifndef OPENSSL_NO_EC2M
ADD_TEST_SUITE(ECExplicitTriNamedCurve);
ADD_TEST_SUITE_LEGACY(ECExplicitTriNamedCurve);
@@ -1427,7 +1427,7 @@ void cleanup_tests(void)
{
#ifndef OPENSSL_NO_EC
OSSL_PARAM_free(ec_explicit_prime_params_nc);
- OSSL_PARAM_free(ec_explicit_prime_params_explicit);
+/* OSSL_PARAM_free(ec_explicit_prime_params_explicit);*/
OSSL_PARAM_BLD_free(bld_prime_nc);
OSSL_PARAM_BLD_free(bld_prime);
# ifndef OPENSSL_NO_EC2M
@@ -1449,7 +1449,7 @@ void cleanup_tests(void)
#ifndef OPENSSL_NO_EC
FREE_DOMAIN_KEYS(EC);
FREE_DOMAIN_KEYS(ECExplicitPrimeNamedCurve);
- FREE_DOMAIN_KEYS(ECExplicitPrime2G);
+/* FREE_DOMAIN_KEYS(ECExplicitPrime2G);*/
# ifndef OPENSSL_NO_EC2M
FREE_DOMAIN_KEYS(ECExplicitTriNamedCurve);
FREE_DOMAIN_KEYS(ECExplicitTri2G);
diff -up openssl-3.0.1/test/recipes/30-test_evp_data/evppkey_ecdsa.txt.disable_explicit_ec openssl-3.0.1/test/recipes/30-test_evp_data/evppkey_ecdsa.txt
--- openssl-3.0.1/test/recipes/30-test_evp_data/evppkey_ecdsa.txt.disable_explicit_ec 2022-03-25 11:20:50.920949208 +0100
+++ openssl-3.0.1/test/recipes/30-test_evp_data/evppkey_ecdsa.txt 2022-03-25 11:21:13.177147598 +0100
@@ -121,18 +121,6 @@ AAAA//////////+85vqtpxeehPO5ysL8YyVRAgEB
3ev1gTwRBduzqqlwd54AUSgI+pjttW8zrWNitO8H1sf59MPWOESKxNtZ1+Nl
-----END PRIVATE KEY-----
-PrivateKey = EC_EXPLICIT
------BEGIN PRIVATE KEY-----
-MIIBeQIBADCCAQMGByqGSM49AgEwgfcCAQEwLAYHKoZIzj0BAQIhAP////8AAAAB
-AAAAAAAAAAAAAAAA////////////////MFsEIP////8AAAABAAAAAAAAAAAAAAAA
-///////////////8BCBaxjXYqjqT57PrvVV2mIa8ZR0GsMxTsPY7zjw+J9JgSwMV
-AMSdNgiG5wSTamZ44ROdJreBn36QBEEE5JcIvn36opqjEm/k59Al40rBAxWM2TPG
-l0L13Je51zHpfXQ9Z2o7IQicMXP4wSfJ0qCgg2bgydqoxlYrlLGuVQIhAP////8A
-AAAA//////////+85vqtpxeehPO5ysL8YyVRAgEBBG0wawIBAQQgec92jwduadCk
-OjoNRI+YT5Be5TkzZXzYCyTLkMOikDmhRANCAATtECEhQbLEaiUj/Wu0qjcr81lL
-46dx5zYgArz/iaSNJ3W80oO+F7v04jlQ7wxQzg96R0bwKiMeq5CcW9ZFt6xg
------END PRIVATE KEY-----
-
PrivateKey = B-163
-----BEGIN PRIVATE KEY-----
MGMCAQAwEAYHKoZIzj0CAQYFK4EEAA8ETDBKAgEBBBUDnQW0mLiHVha/jqFznX/K
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