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Fix zero-length content verification in S/MIME format

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Fixes 

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13087)
This commit is contained in:
Dmitry Belyavskiy 2020-10-07 13:23:01 +03:00
parent 947fb81345
commit 13c5ec569e
2 changed files with 2 additions and 2 deletions

2
crypto/cms/cms_smime.c

@ -401,7 +401,7 @@ int CMS_verify(CMS_ContentInfo *cms, STACK_OF(X509) *certs,
long len;
len = BIO_get_mem_data(dcont, &ptr);
tmpin = BIO_new_mem_buf(ptr, len);
tmpin = (len == 0) ? dcont : BIO_new_mem_buf(ptr, len);
if (tmpin == NULL) {
CMSerr(CMS_F_CMS_VERIFY, ERR_R_MALLOC_FAILURE);
goto err2;

2
crypto/pkcs7/pk7_smime.c

@ -311,7 +311,7 @@ int PKCS7_verify(PKCS7 *p7, STACK_OF(X509) *certs, X509_STORE *store,
char *ptr;
long len;
len = BIO_get_mem_data(indata, &ptr);
tmpin = BIO_new_mem_buf(ptr, len);
tmpin = (len == 0) ? indata : BIO_new_mem_buf(ptr, len);
if (tmpin == NULL) {
PKCS7err(0, ERR_R_MALLOC_FAILURE);
goto err;