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authorOlga Batyshkina <obatysh@gmx.com>2023-08-07 14:51:53 +0200
committerTomas Mraz <tomas@openssl.org>2023-08-10 12:09:38 +0200
commit13342efbb9e16ec8f97b1ac5ab4aa2b3b3490596 (patch)
tree6656eebfcacb40831a903900de5bc1239758f4d2 /crypto/cms
parent6d38ccedb25f31dfab232e2669415fd4db18b20e (diff)
Do not raise CMS_R_CONTENT_TYPE_NOT_ENVELOPED_DATA error in CMS_ContentInfo_free
This happens if this function is called for signed content. Added ossl_cms_env_enc_content_free() for cleaning enveloped content. Fixed indentation in ossl_cms_env_enc_content_free Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/21676)
Diffstat (limited to 'crypto/cms')
-rw-r--r--crypto/cms/cms_env.c21
-rw-r--r--crypto/cms/cms_lib.c5
-rw-r--r--crypto/cms/cms_local.h1
3 files changed, 21 insertions, 6 deletions
diff --git a/crypto/cms/cms_env.c b/crypto/cms/cms_env.c
index 7c1ab5fa53..6fc27565cd 100644
--- a/crypto/cms/cms_env.c
+++ b/crypto/cms/cms_env.c
@@ -26,7 +26,7 @@ static void cms_env_set_version(CMS_EnvelopedData *env);
#define CMS_ENVELOPED_STANDARD 1
#define CMS_ENVELOPED_AUTH 2
-static int cms_get_enveloped_type(const CMS_ContentInfo *cms)
+static int cms_get_enveloped_type_simple(const CMS_ContentInfo *cms)
{
int nid = OBJ_obj2nid(cms->contentType);
@@ -38,11 +38,28 @@ static int cms_get_enveloped_type(const CMS_ContentInfo *cms)
return CMS_ENVELOPED_AUTH;
default:
- ERR_raise(ERR_LIB_CMS, CMS_R_CONTENT_TYPE_NOT_ENVELOPED_DATA);
return 0;
}
}
+static int cms_get_enveloped_type(const CMS_ContentInfo *cms)
+{
+ int ret = cms_get_enveloped_type_simple(cms);
+
+ if (ret == 0)
+ ERR_raise(ERR_LIB_CMS, CMS_R_CONTENT_TYPE_NOT_ENVELOPED_DATA);
+ return ret;
+}
+
+void ossl_cms_env_enc_content_free(const CMS_ContentInfo *cinf)
+{
+ if (cms_get_enveloped_type_simple(cinf) != 0) {
+ CMS_EncryptedContentInfo *ec = ossl_cms_get0_env_enc_content(cinf);
+ if (ec != NULL)
+ OPENSSL_clear_free(ec->key, ec->keylen);
+ }
+}
+
CMS_EnvelopedData *ossl_cms_get0_enveloped(CMS_ContentInfo *cms)
{
if (OBJ_obj2nid(cms->contentType) != NID_pkcs7_enveloped) {
diff --git a/crypto/cms/cms_lib.c b/crypto/cms/cms_lib.c
index 7e2010bff7..fb1c8203e8 100644
--- a/crypto/cms/cms_lib.c
+++ b/crypto/cms/cms_lib.c
@@ -74,10 +74,7 @@ CMS_ContentInfo *CMS_ContentInfo_new(void)
void CMS_ContentInfo_free(CMS_ContentInfo *cms)
{
if (cms != NULL) {
- CMS_EncryptedContentInfo *ec = ossl_cms_get0_env_enc_content(cms);
-
- if (ec != NULL)
- OPENSSL_clear_free(ec->key, ec->keylen);
+ ossl_cms_env_enc_content_free(cms);
OPENSSL_free(cms->ctx.propq);
ASN1_item_free((ASN1_VALUE *)cms, ASN1_ITEM_rptr(CMS_ContentInfo));
}
diff --git a/crypto/cms/cms_local.h b/crypto/cms/cms_local.h
index 514a345d6e..92d8723428 100644
--- a/crypto/cms/cms_local.h
+++ b/crypto/cms/cms_local.h
@@ -447,6 +447,7 @@ BIO *ossl_cms_EnvelopedData_init_bio(CMS_ContentInfo *cms);
int ossl_cms_EnvelopedData_final(CMS_ContentInfo *cms, BIO *chain);
BIO *ossl_cms_AuthEnvelopedData_init_bio(CMS_ContentInfo *cms);
int ossl_cms_AuthEnvelopedData_final(CMS_ContentInfo *cms, BIO *cmsbio);
+void ossl_cms_env_enc_content_free(const CMS_ContentInfo *cinf);
CMS_EnvelopedData *ossl_cms_get0_enveloped(CMS_ContentInfo *cms);
CMS_AuthEnvelopedData *ossl_cms_get0_auth_enveloped(CMS_ContentInfo *cms);
CMS_EncryptedContentInfo *ossl_cms_get0_env_enc_content(const CMS_ContentInfo *cms);