diff options
Diffstat (limited to 'crypto/asn1/x_name.c')
| -rw-r--r-- | crypto/asn1/x_name.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/crypto/asn1/x_name.c b/crypto/asn1/x_name.c index 737c426f2dea..a858c2993b90 100644 --- a/crypto/asn1/x_name.c +++ b/crypto/asn1/x_name.c @@ -66,6 +66,13 @@ typedef STACK_OF(X509_NAME_ENTRY) STACK_OF_X509_NAME_ENTRY; DECLARE_STACK_OF(STACK_OF_X509_NAME_ENTRY) +/* + * Maximum length of X509_NAME: much larger than anything we should + * ever see in practice. + */ + +#define X509_NAME_MAX (1024 * 1024) + static int x509_name_ex_d2i(ASN1_VALUE **val, const unsigned char **in, long len, const ASN1_ITEM *it, @@ -192,6 +199,10 @@ static int x509_name_ex_d2i(ASN1_VALUE **val, int i, j, ret; STACK_OF(X509_NAME_ENTRY) *entries; X509_NAME_ENTRY *entry; + if (len > X509_NAME_MAX) { + ASN1err(ASN1_F_X509_NAME_EX_D2I, ASN1_R_TOO_LONG); + return 0; + } q = p; /* Get internal representation of Name */ |