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Fix seg fault in ASN1_generate_v3/ASN1_generate_nconf
[oweals/openssl.git]
/
crypto
/
asn1
/
asn1_gen.c
diff --git
a/crypto/asn1/asn1_gen.c
b/crypto/asn1/asn1_gen.c
index 16a1b5aea2d59f71aa7d2cb9339c2b87975b5696..0e1cc08894f0cb3b19cdead37aa0da6730b407ef 100644
(file)
--- a/
crypto/asn1/asn1_gen.c
+++ b/
crypto/asn1/asn1_gen.c
@@
-353,6
+353,10
@@
static int asn1_cb(const char *elem, int len, void *bitstr)
break;
case ASN1_GEN_FLAG_FORMAT:
+ if(!vstart) {
+ ASN1err(ASN1_F_ASN1_CB, ASN1_R_UNKNOWN_FORMAT);
+ return -1;
+ }
if (!strncmp(vstart, "ASCII", 5))
arg->format = ASN1_GEN_FORMAT_ASCII;
else if (!strncmp(vstart, "UTF8", 4))