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don't over-allocate that much in der_decode_subject_public_key_info()

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This commit is contained in:
Steffen Jaeckel 2017-09-29 10:16:42 +02:00
parent 0b04279890
commit 15eab9702b
1 changed files with 2 additions and 2 deletions
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4
src/pk/asn1/der/sequence/der_decode_subject_public_key_info.c
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@ -58,7 +58,7 @@ int der_decode_subject_public_key_info(const unsigned char *in, unsigned long in
} }
/* see if the OpenSSL DER format RSA public key will work */ /* see if the OpenSSL DER format RSA public key will work */
tmpbuf = XCALLOC(1, LTC_DER_MAX_PUBKEY_SIZE*8); tmpbuf = XCALLOC(1, inlen);
if (tmpbuf == NULL) { if (tmpbuf == NULL) {
err = CRYPT_MEM; err = CRYPT_MEM;
goto LBL_ERR; goto LBL_ERR;
@ -72,7 +72,7 @@ int der_decode_subject_public_key_info(const unsigned char *in, unsigned long in
* in a **BIT** string ... so we have to extract it then proceed to convert bit to octet * in a **BIT** string ... so we have to extract it then proceed to convert bit to octet
*/ */
LTC_SET_ASN1(subject_pubkey, 0, LTC_ASN1_SEQUENCE, alg_id, 2); LTC_SET_ASN1(subject_pubkey, 0, LTC_ASN1_SEQUENCE, alg_id, 2);
LTC_SET_ASN1(subject_pubkey, 1, LTC_ASN1_RAW_BIT_STRING, tmpbuf, LTC_DER_MAX_PUBKEY_SIZE*8); LTC_SET_ASN1(subject_pubkey, 1, LTC_ASN1_RAW_BIT_STRING, tmpbuf, inlen);
err=der_decode_sequence(in, inlen, subject_pubkey, 2UL); err=der_decode_sequence(in, inlen, subject_pubkey, 2UL);
if (err != CRYPT_OK) { if (err != CRYPT_OK) {