From c3c7fb07dc975dc3c9de0eddb7d8fd79fc9c67c1 Mon Sep 17 00:00:00 2001 From: "Dr. Stephen Henson" Date: Mon, 9 Mar 2015 23:11:45 +0000 Subject: [PATCH] Fix ASN1_TYPE_cmp Fix segmentation violation when ASN1_TYPE_cmp is passed a boolean type. This can be triggered during certificate verification so could be a DoS attack against a client or a server enabling client authentication. CVE-2015-0286 Reviewed-by: Richard Levitte --- crypto/asn1/a_type.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/crypto/asn1/a_type.c b/crypto/asn1/a_type.c index 4a36aff6ac..af795306b5 100644 --- a/crypto/asn1/a_type.c +++ b/crypto/asn1/a_type.c @@ -119,6 +119,9 @@ int ASN1_TYPE_cmp(const ASN1_TYPE *a, const ASN1_TYPE *b) case V_ASN1_OBJECT: result = OBJ_cmp(a->value.object, b->value.object); break; + case V_ASN1_BOOLEAN: + result = a->value.boolean - b->value.boolean; + break; case V_ASN1_NULL: result = 0; /* They do not have content. */ break; -- 2.25.1