nhyatt/osslsigncode
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use OpenSSL memory allocation

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This commit is contained in:
Michał Trojnara 2018-12-09 23:30:20 +01:00
parent 5a01658434
commit fe08daaa4f
1 changed files with 37 additions and 37 deletions
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40
osslsigncode.c
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@ -932,8 +932,8 @@ static unsigned char *calc_page_hash(char *indata, size_t peheader,
const EVP_MD *md = EVP_get_digestbynid(phtype);
int pphlen = 4 + EVP_MD_size(md);
int phlen = pphlen * (3 + nsections + sigpos / pagesize);
unsigned char *res = malloc(phlen);
unsigned char *zeroes = calloc(pagesize, 1);
unsigned char *res = OPENSSL_malloc(phlen);
unsigned char *zeroes = OPENSSL_zalloc(pagesize);
EVP_MD_CTX *mdctx;
mdctx = EVP_MD_CTX_new();
@ -971,7 +971,7 @@ static unsigned char *calc_page_hash(char *indata, size_t peheader,
PUT_UINT32_LE(lastpos, res + pi*pphlen);
memset(res + pi*pphlen + 4, 0, EVP_MD_size(md));
pi++;
free(zeroes);
OPENSSL_free(zeroes);
*rphlen = pi*pphlen;
return res;
}
@ -988,7 +988,7 @@ static SpcLink *get_page_hash_link(int phtype, char *indata,
ASN1_OCTET_STRING *ostr = ASN1_OCTET_STRING_new();
ASN1_OCTET_STRING_set(ostr, ph, phlen);
free(ph);
OPENSSL_free(ph);
STACK_OF(ASN1_OCTET_STRING) *oset = sk_ASN1_OCTET_STRING_new_null();
sk_ASN1_OCTET_STRING_push(oset, ostr);
@ -1118,7 +1118,7 @@ static unsigned int calc_pe_checksum(BIO *bio, size_t peheader)
int nread;
/* recalculate the checksum */
buf = malloc(sizeof(unsigned short)*32768);
buf = OPENSSL_malloc(sizeof(unsigned short)*32768);
(void)BIO_seek(bio, 0);
while ((nread = BIO_read(bio, buf, sizeof(unsigned short)*32768)) > 0) {
@ -1133,7 +1133,7 @@ static unsigned int calc_pe_checksum(BIO *bio, size_t peheader)
}
}
free(buf);
OPENSSL_free(buf);
checkSum = 0xffff & (checkSum + (checkSum >> 0x10));
checkSum += size;
@ -1744,7 +1744,7 @@ static int msi_verify_file(GsfInfile *infile, char *leafhash)
}
unsigned long inlen = (unsigned long) gsf_input_remaining(sig);
indata = malloc(inlen);
indata = OPENSSL_malloc(inlen);
if (gsf_input_read(sig, inlen, indata) == NULL) {
ret = 1;
goto out;
@ -1753,7 +1753,7 @@ static int msi_verify_file(GsfInfile *infile, char *leafhash)
unsigned long exlen = 0;
if (exsig != NULL) {
exlen = (unsigned long) gsf_input_remaining(exsig);
exdata = malloc(exlen);
exdata = OPENSSL_malloc(exlen);
if (gsf_input_read(exsig, exlen, exdata) == NULL) {
ret = 1;
goto out;
@ -1766,8 +1766,8 @@ static int msi_verify_file(GsfInfile *infile, char *leafhash)
ret = msi_verify_pkcs7(p7, infile, exdata, exlen, leafhash, 1);
out:
free(indata);
free(exdata);
OPENSSL_free(indata);
OPENSSL_free(exdata);
if (p7)
PKCS7_free(p7);
@ -1780,7 +1780,7 @@ static int msi_extract_dse(GsfInfile *infile, unsigned char **dsebuf,
{
GsfInput *exsig = NULL;
gchar decoded[0x40];
u_char *buf = NULL;
unsigned char *buf = NULL;
gsf_off_t size = 0;
int i, ret = 0;
@ -1807,12 +1807,12 @@ static int msi_extract_dse(GsfInfile *infile, unsigned char **dsebuf,
}
if (dsebuf != NULL) {
buf = malloc(size);
buf = OPENSSL_malloc(size);
if (gsf_input_read(exsig, size, buf) == NULL) {
ret = 1;
goto out;
}
*dsebuf = (unsigned char *) buf;
*dsebuf = buf;
}
out:
@ -1871,7 +1871,7 @@ static int msi_extract_signature_to_file(GsfInfile *infile, char *outfile)
goto out;
}
exdata = malloc(exlen);
exdata = OPENSSL_malloc(exlen);
if (gsf_input_read(exsig, exlen, exdata) == NULL) {
printf("Unable to read MsiDigitalSignatureEx\n\n");
ret = 1;
@ -1884,7 +1884,7 @@ static int msi_extract_signature_to_file(GsfInfile *infile, char *outfile)
}
out:
free(exdata);
OPENSSL_free(exdata);
if (outdata)
BIO_free_all(outdata);
@ -1912,7 +1912,7 @@ static PKCS7 *msi_extract_signature_to_pkcs7(GsfInfile *infile)
}
size = gsf_input_remaining(sig);
buf = malloc(size);
buf = OPENSSL_malloc(size);
if (gsf_input_read(sig, size, buf) == NULL) {
goto out;
}
@ -1921,7 +1921,7 @@ static PKCS7 *msi_extract_signature_to_pkcs7(GsfInfile *infile)
p7 = d2i_PKCS7(NULL, &p7buf, size);
out:
free(buf);
OPENSSL_free(buf);
return p7;
}
@ -2011,7 +2011,7 @@ static void extract_page_hash (SpcAttributeTypeAndOptionalValue *obj,
l = asn1_simple_hdr_len(obj->value->value.sequence->data + l2, obj->value->value.sequence->length - l2);
l += l2;
*phlen = obj->value->value.sequence->length - l;
*ph = malloc(*phlen);
*ph = OPENSSL_malloc(*phlen);
memcpy(*ph, obj->value->value.sequence->data + l, *phlen);
SpcAttributeTypeAndOptionalValue_free(obj);
}
@ -2075,8 +2075,8 @@ static int verify_pe_pkcs7(PKCS7 *p7, char *indata, size_t peheader,
tohex(cph, hexbuf, (cphlen < 32) ? cphlen : 32);
printf("Calculated page hash : %s ...%s\n\n", hexbuf,
((phlen != cphlen) || memcmp(ph, cph, phlen)) ? " MISMATCH!!!":"");
free(ph);
free(cph);
OPENSSL_free(ph);
OPENSSL_free(cph);
}
size_t seqhdrlen = asn1_simple_hdr_len(p7->d.sign->contents->d.other->value.sequence->data,