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Forbid explicit curves when created via EVP_PKEY_fromdata

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Resolves: RHEL-5304
This commit is contained in:
Dmitry Belyavskiy 2023-10-17 13:26:14 +02:00
parent 92436854f9
commit fa5df9d74b
2 changed files with 90 additions and 0 deletions
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88
0012-Disable-explicit-ec.patch
View File

@ -26,6 +26,94 @@ diff -up openssl-3.0.1/crypto/ec/ec_asn1.c.disable_explicit_ec openssl-3.0.1/cry
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

2
openssl.spec
View File

@ -531,6 +531,8 @@ ln -s /etc/crypto-policies/back-ends/openssl_fips.config $RPM_BUILD_ROOT%{_sysco
Resolves: RHEL-11439
- Avoid implicit function declaration when building openssl
Resolves: RHEL-1780
- Forbid explicit curves when created via EVP_PKEY_fromdata
Resolves: RHEL-5304
* Wed Jul 12 2023 Dmitry Belyavskiy <dbelyavs@redhat.com> - 1:3.0.7-24
- Make FIPS module configuration more crypto-policies friendly