From ac5a110621ca48f0bebd5b4d76d081de403da29e Mon Sep 17 00:00:00 2001 From: Matt Caswell Date: Tue, 10 Mar 2015 23:15:15 +0000 Subject: [PATCH] Fix seg fault in ASN1_generate_v3/ASN1_generate_nconf Reviewed-by: Dr. Stephen Henson --- crypto/asn1/asn1_gen.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/crypto/asn1/asn1_gen.c b/crypto/asn1/asn1_gen.c index 16a1b5aea2..0e1cc08894 100644 --- 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)) -- GitLab