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authorT.O. Radzy Radzykewycz <radzy@windriver.com>2016-11-15 14:14:38 -0800
committerRichard Purdie <richard.purdie@linuxfoundation.org>2016-11-23 11:10:14 +0000
commit3a769fce06180012803da863598b03e611227783 (patch)
treefd73bdfa5f391e83ea7366eda7187fb29b607374 /meta/recipes-connectivity/openssl
parent333d300fba023bfd201f044b52f51d4b13fcd182 (diff)
downloadpoky-3a769fce06180012803da863598b03e611227783.tar.gz
OpenSSL: CVE-2004-2761 replace MD5 hash algorithm
Use SHA256 as default digest for OpenSSL instead of MD5. CVE: CVE-2004-2761 The MD5 Message-Digest Algorithm is not collision resistant, which makes it easier for context-dependent attackers to conduct spoofing attacks, as demonstrated by attacks on the use of MD5 in the signature algorithm of an X.509 certificate. Upstream-Status: Backport Backport from OpenSSL 2.0 to OpenSSL 1.0.2 Commit f8547f62c212837dbf44fb7e2755e5774a59a57b Reviewed-by: Viktor Dukhovni <viktor@openssl.org> (From OE-Core rev: f924428cf0c22a0b62769f8f31f11f173f25014f) Signed-off-by: Zhang Xiao <xiao.zhang@windriver.com> Signed-off-by: T.O. Radzy Radzykewycz <radzy@windriver.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/recipes-connectivity/openssl')
-rw-r--r--meta/recipes-connectivity/openssl/openssl/Use-SHA256-not-MD5-as-default-digest.patch69
1 files changed, 69 insertions, 0 deletions
diff --git a/meta/recipes-connectivity/openssl/openssl/Use-SHA256-not-MD5-as-default-digest.patch b/meta/recipes-connectivity/openssl/openssl/Use-SHA256-not-MD5-as-default-digest.patch
new file mode 100644
index 0000000000..58c9ee7844
--- /dev/null
+++ b/meta/recipes-connectivity/openssl/openssl/Use-SHA256-not-MD5-as-default-digest.patch
@@ -0,0 +1,69 @@
1From d795f5f20a29adecf92c09459a3ee07ffac01a99 Mon Sep 17 00:00:00 2001
2From: Rich Salz <rsalz@akamai.com>
3Date: Sat, 13 Jun 2015 17:03:39 -0400
4Subject: [PATCH] Use SHA256 not MD5 as default digest.
5
6Commit f8547f62c212837dbf44fb7e2755e5774a59a57b upstream.
7
8Upstream-Status: Backport
9Backport from OpenSSL 2.0 to OpenSSL 1.0.2
10Commit f8547f62c212837dbf44fb7e2755e5774a59a57b
11
12CVE: CVE-2004-2761
13
14 The MD5 Message-Digest Algorithm is not collision resistant,
15 which makes it easier for context-dependent attackers to
16 conduct spoofing attacks, as demonstrated by attacks on the
17 use of MD5 in the signature algorithm of an X.509 certificate.
18
19Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
20Signed-off-by: Zhang Xiao <xiao.zhang@windriver.com>
21Signed-off-by: T.O. Radzy Radzykewycz <radzy@windriver.com>
22---
23 apps/ca.c | 2 +-
24 apps/dgst.c | 2 +-
25 apps/enc.c | 2 +-
26 3 files changed, 3 insertions(+), 3 deletions(-)
27
28diff --git a/apps/ca.c b/apps/ca.c
29index 3b7336c..8f3a84b 100644
30--- a/apps/ca.c
31+++ b/apps/ca.c
32@@ -1612,7 +1612,7 @@ static int certify_cert(X509 **xret, char *infile, EVP_PKEY *pkey, X509 *x509,
33 } else
34 BIO_printf(bio_err, "Signature ok\n");
35
36- if ((rreq = X509_to_X509_REQ(req, NULL, EVP_md5())) == NULL)
37+ if ((rreq = X509_to_X509_REQ(req, NULL, NULL)) == NULL)
38 goto err;
39
40 ok = do_body(xret, pkey, x509, dgst, sigopts, policy, db, serial, subj,
41diff --git a/apps/dgst.c b/apps/dgst.c
42index 95e5fa3..0d1529f 100644
43--- a/apps/dgst.c
44+++ b/apps/dgst.c
45@@ -442,7 +442,7 @@ int MAIN(int argc, char **argv)
46 goto end;
47 }
48 if (md == NULL)
49- md = EVP_md5();
50+ md = EVP_sha256();
51 if (!EVP_DigestInit_ex(mctx, md, impl)) {
52 BIO_printf(bio_err, "Error setting digest %s\n", pname);
53 ERR_print_errors(bio_err);
54diff --git a/apps/enc.c b/apps/enc.c
55index 7b7c70b..a7d944c 100644
56--- a/apps/enc.c
57+++ b/apps/enc.c
58@@ -344,7 +344,7 @@ int MAIN(int argc, char **argv)
59 }
60
61 if (dgst == NULL) {
62- dgst = EVP_md5();
63+ dgst = EVP_sha256();
64 }
65
66 if (bufsize != NULL) {
67--
681.9.1
69