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vip-ire |
1.1 |
diff -up openssl-fips-0.9.8e/crypto/pkcs7/pk7_doit.c.pkcs7-null-deref openssl-fips-0.9.8e/crypto/pkcs7/pk7_doit.c |
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--- openssl-fips-0.9.8e/crypto/pkcs7/pk7_doit.c.pkcs7-null-deref 2015-04-01 12:41:27.998402503 +0200 |
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+++ openssl-fips-0.9.8e/crypto/pkcs7/pk7_doit.c 2015-04-02 15:24:26.781363674 +0200 |
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@@ -151,6 +151,27 @@ BIO *PKCS7_dataInit(PKCS7 *p7, BIO *bio) |
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EVP_PKEY *pkey; |
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ASN1_OCTET_STRING *os=NULL; |
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+ if (p7 == NULL) |
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+ { |
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+ PKCS7err(PKCS7_F_PKCS7_DATAINIT, PKCS7_R_INVALID_NULL_POINTER); |
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+ return NULL; |
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+ } |
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+ /* |
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+ * The content field in the PKCS7 ContentInfo is optional, but that really |
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+ * only applies to inner content (precisely, detached signatures). |
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+ * |
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+ * When reading content, missing outer content is therefore treated as an |
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+ * error. |
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+ * |
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+ * When creating content, PKCS7_content_new() must be called before |
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+ * calling this method, so a NULL p7->d is always an error. |
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+ */ |
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+ if (p7->d.ptr == NULL) |
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+ { |
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+ PKCS7err(PKCS7_F_PKCS7_DATAINIT, PKCS7_R_NO_CONTENT); |
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+ return NULL; |
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+ } |
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+ |
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i=OBJ_obj2nid(p7->type); |
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p7->state=PKCS7_S_HEADER; |
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@@ -345,6 +366,18 @@ BIO *PKCS7_dataDecode(PKCS7 *p7, EVP_PKE |
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X509_ALGOR *xalg=NULL; |
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PKCS7_RECIP_INFO *ri=NULL; |
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+ if (p7 == NULL) |
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+ { |
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+ PKCS7err(PKCS7_F_PKCS7_DATADECODE, PKCS7_R_INVALID_NULL_POINTER); |
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+ return NULL; |
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+ } |
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+ |
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+ if (p7->d.ptr == NULL) |
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+ { |
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+ PKCS7err(PKCS7_F_PKCS7_DATADECODE, PKCS7_R_NO_CONTENT); |
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+ return NULL; |
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+ } |
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+ |
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i=OBJ_obj2nid(p7->type); |
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p7->state=PKCS7_S_HEADER; |
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@@ -352,6 +385,12 @@ BIO *PKCS7_dataDecode(PKCS7 *p7, EVP_PKE |
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{ |
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case NID_pkcs7_signed: |
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data_body=PKCS7_get_octet_string(p7->d.sign->contents); |
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+ if (!PKCS7_is_detached(p7) && data_body == NULL) |
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+ { |
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+ PKCS7err(PKCS7_F_PKCS7_DATADECODE, |
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+ PKCS7_R_NO_CONTENT); |
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+ goto err; |
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+ } |
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md_sk=p7->d.sign->md_algs; |
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break; |
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case NID_pkcs7_signedAndEnveloped: |
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@@ -640,6 +679,18 @@ int PKCS7_dataFinal(PKCS7 *p7, BIO *bio) |
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STACK_OF(PKCS7_SIGNER_INFO) *si_sk=NULL; |
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ASN1_OCTET_STRING *os=NULL; |
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+ if (p7 == NULL) |
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+ { |
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+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL, PKCS7_R_INVALID_NULL_POINTER); |
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+ return 0; |
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+ } |
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+ |
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+ if (p7->d.ptr == NULL) |
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+ { |
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+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL, PKCS7_R_NO_CONTENT); |
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+ return 0; |
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+ } |
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+ |
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EVP_MD_CTX_init(&ctx_tmp); |
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i=OBJ_obj2nid(p7->type); |
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p7->state=PKCS7_S_HEADER; |
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@@ -671,6 +722,7 @@ int PKCS7_dataFinal(PKCS7 *p7, BIO *bio) |
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/* If detached data then the content is excluded */ |
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if(PKCS7_type_is_data(p7->d.sign->contents) && p7->detached) { |
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M_ASN1_OCTET_STRING_free(os); |
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+ os = NULL; |
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p7->d.sign->contents->d.data = NULL; |
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} |
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break; |
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@@ -681,6 +733,7 @@ int PKCS7_dataFinal(PKCS7 *p7, BIO *bio) |
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if(PKCS7_type_is_data(p7->d.digest->contents) && p7->detached) |
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{ |
| 94 |
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M_ASN1_OCTET_STRING_free(os); |
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+ os = NULL; |
| 96 |
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p7->d.digest->contents->d.data = NULL; |
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} |
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break; |
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@@ -818,6 +871,12 @@ int PKCS7_dataFinal(PKCS7 *p7, BIO *bio) |
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| 101 |
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if (!PKCS7_is_detached(p7)) |
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{ |
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+ /* |
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+ * NOTE(emilia): I think we only reach os == NULL here because detached |
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+ * digested data support is broken. |
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+ */ |
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+ if (os == NULL) |
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+ goto err; |
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btmp=BIO_find_type(bio,BIO_TYPE_MEM); |
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if (btmp == NULL) |
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{ |
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@@ -852,6 +911,18 @@ int PKCS7_dataVerify(X509_STORE *cert_st |
| 113 |
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STACK_OF(X509) *cert; |
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X509 *x509; |
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| 116 |
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+ if (p7 == NULL) |
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+ { |
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+ PKCS7err(PKCS7_F_PKCS7_DATAVERIFY, PKCS7_R_INVALID_NULL_POINTER); |
| 119 |
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+ return 0; |
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+ } |
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+ |
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+ if (p7->d.ptr == NULL) |
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+ { |
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+ PKCS7err(PKCS7_F_PKCS7_DATAVERIFY, PKCS7_R_NO_CONTENT); |
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+ return 0; |
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+ } |
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+ |
| 128 |
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if (PKCS7_type_is_signed(p7)) |
| 129 |
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{ |
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cert=p7->d.sign->cert; |
| 131 |
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diff -up openssl-fips-0.9.8e/crypto/pkcs7/pk7_lib.c.pkcs7-null-deref openssl-fips-0.9.8e/crypto/pkcs7/pk7_lib.c |
| 132 |
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--- openssl-fips-0.9.8e/crypto/pkcs7/pk7_lib.c.pkcs7-null-deref 2007-02-03 10:51:59.000000000 +0100 |
| 133 |
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+++ openssl-fips-0.9.8e/crypto/pkcs7/pk7_lib.c 2015-04-02 15:18:12.874970022 +0200 |
| 134 |
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@@ -473,6 +473,8 @@ int PKCS7_set_digest(PKCS7 *p7, const EV |
| 135 |
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STACK_OF(PKCS7_SIGNER_INFO) *PKCS7_get_signer_info(PKCS7 *p7) |
| 137 |
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{ |
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+ if (p7 == NULL || p7->d.ptr == NULL) |
| 139 |
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+ return NULL; |
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if (PKCS7_type_is_signed(p7)) |
| 141 |
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{ |
| 142 |
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return(p7->d.sign->signer_info); |
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