From 0e7e4005460964cf8dac080e3d99e1df2a1bdc4d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Parm=C3=A9nides=20GV?= Date: Fri, 12 Dec 2014 11:49:24 +0100 Subject: Updated ics-openvpn to rev924. --- .../main/openssl/crypto/asn1/a_object.c | 30 +++++++++++++++------- 1 file changed, 21 insertions(+), 9 deletions(-) (limited to 'ics-openvpn-stripped/main/openssl/crypto/asn1/a_object.c') diff --git a/ics-openvpn-stripped/main/openssl/crypto/asn1/a_object.c b/ics-openvpn-stripped/main/openssl/crypto/asn1/a_object.c index 3978c915..77b27689 100644 --- a/ics-openvpn-stripped/main/openssl/crypto/asn1/a_object.c +++ b/ics-openvpn-stripped/main/openssl/crypto/asn1/a_object.c @@ -283,17 +283,29 @@ err: ASN1err(ASN1_F_D2I_ASN1_OBJECT,i); return(NULL); } + ASN1_OBJECT *c2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp, long len) { ASN1_OBJECT *ret=NULL; const unsigned char *p; unsigned char *data; - int i; - /* Sanity check OID encoding: can't have leading 0x80 in - * subidentifiers, see: X.690 8.19.2 + int i, length; + + /* Sanity check OID encoding. + * Need at least one content octet. + * MSB must be clear in the last octet. + * can't have leading 0x80 in subidentifiers, see: X.690 8.19.2 */ - for (i = 0, p = *pp; i < len; i++, p++) + if (len <= 0 || len > INT_MAX || pp == NULL || (p = *pp) == NULL || + p[len - 1] & 0x80) + { + ASN1err(ASN1_F_C2I_ASN1_OBJECT,ASN1_R_INVALID_OBJECT_ENCODING); + return NULL; + } + /* Now 0 < len <= INT_MAX, so the cast is safe. */ + length = (int)len; + for (i = 0; i < length; i++, p++) { if (*p == 0x80 && (!i || !(p[-1] & 0x80))) { @@ -316,23 +328,23 @@ ASN1_OBJECT *c2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp, data = (unsigned char *)ret->data; ret->data = NULL; /* once detached we can change it */ - if ((data == NULL) || (ret->length < len)) + if ((data == NULL) || (ret->length < length)) { ret->length=0; if (data != NULL) OPENSSL_free(data); - data=(unsigned char *)OPENSSL_malloc(len ? (int)len : 1); + data=(unsigned char *)OPENSSL_malloc(length); if (data == NULL) { i=ERR_R_MALLOC_FAILURE; goto err; } ret->flags|=ASN1_OBJECT_FLAG_DYNAMIC_DATA; } - memcpy(data,p,(int)len); + memcpy(data,p,length); /* reattach data to object, after which it remains const */ ret->data =data; - ret->length=(int)len; + ret->length=length; ret->sn=NULL; ret->ln=NULL; /* ret->flags=ASN1_OBJECT_FLAG_DYNAMIC; we know it is dynamic */ - p+=len; + p+=length; if (a != NULL) (*a)=ret; *pp=p; -- cgit v1.2.3