From: Dr. Stephen Henson <steve@openssl.org>
Date: Mon, 18 Mar 2013 14:19:40 +0000 (+0000)
Subject: Encode INTEGER correctly.
X-Git-Tag: OpenSSL_1_0_1f~81
X-Git-Url: http://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff_plain;h=85615e33e526be9c420c92e85f3d73d94c7f2fe6;hp=f4cfc3444aad8d3d98fbcffec0c6caea9a51718c

Encode INTEGER correctly.

If an ASN1_INTEGER structure is allocated but not explicitly set encode
it as zero: don't generate an invalid zero length INTEGER.
(cherry picked from commit 1643edc63c3e15b6db5a15a728bc288f2cc2bbc7)
---

diff --git a/crypto/asn1/a_int.c b/crypto/asn1/a_int.c
index ad0d250..297c45a 100644
--- a/crypto/asn1/a_int.c
+++ b/crypto/asn1/a_int.c
@@ -116,7 +116,7 @@ int i2c_ASN1_INTEGER(ASN1_INTEGER *a, unsigned char **pp)
 	int pad=0,ret,i,neg;
 	unsigned char *p,*n,pb=0;
 
-	if ((a == NULL) || (a->data == NULL)) return(0);
+	if (a == NULL) return(0);
 	neg=a->type & V_ASN1_NEG;
 	if (a->length == 0)
 		ret=1;