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From: Raphael Geissert <geissert@debian.org>
Description: make X509_verify_cert indicate that any certificate whose
 name contains "DigiNotar" is revoked.
Forwarded: not-needed
Origin: vendor
Last-Update: 2011-09-08
Bug: http://bugs.debian.org/639744
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Dr Stephen N Henson <shenson@drh-consultancy.co.uk>

This is not meant as final patch.  

Upstream-Status: Backport [debian]

Signed-off-by: Armin Kuster <akuster@mvista.com>

Index: openssl-1.0.2g/crypto/x509/x509_vfy.c
===================================================================
--- openssl-1.0.2g.orig/crypto/x509/x509_vfy.c
+++ openssl-1.0.2g/crypto/x509/x509_vfy.c
@@ -119,6 +119,7 @@ static int check_trust(X509_STORE_CTX *c
 static int check_revocation(X509_STORE_CTX *ctx);
 static int check_cert(X509_STORE_CTX *ctx);
 static int check_policy(X509_STORE_CTX *ctx);
+static int check_ca_blacklist(X509_STORE_CTX *ctx);
 
 static int get_crl_score(X509_STORE_CTX *ctx, X509 **pissuer,
                          unsigned int *preasons, X509_CRL *crl, X509 *x);
@@ -489,6 +490,9 @@ int X509_verify_cert(X509_STORE_CTX *ctx
     if (!ok)
         goto err;
 
+	ok = check_ca_blacklist(ctx);
+	if(!ok) goto err;
+
 #ifndef OPENSSL_NO_RFC3779
     /* RFC 3779 path validation, now that CRL check has been done */
     ok = v3_asid_validate_path(ctx);
@@ -996,6 +1000,29 @@ static int check_crl_time(X509_STORE_CTX
     return 1;
 }
 
+static int check_ca_blacklist(X509_STORE_CTX *ctx)
+	{
+	X509 *x;
+	int i;
+	/* Check all certificates against the blacklist */
+	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
+		{
+		x = sk_X509_value(ctx->chain, i);
+		/* Mark DigiNotar certificates as revoked, no matter
+		 * where in the chain they are.
+		 */
+		if (x->name && strstr(x->name, "DigiNotar"))
+			{
+			ctx->error = X509_V_ERR_CERT_REVOKED;
+			ctx->error_depth = i;
+			ctx->current_cert = x;
+			if (!ctx->verify_cb(0,ctx))
+				return 0;
+			}
+		}
+	return 1;
+	}
+
 static int get_crl_sk(X509_STORE_CTX *ctx, X509_CRL **pcrl, X509_CRL **pdcrl,
                       X509 **pissuer, int *pscore, unsigned int *preasons,
                       STACK_OF(X509_CRL) *crls)