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python: Disables SSLv3

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This is related to "SSLv3 POODLE vulnerability" CVE-2014-3566

Building python without SSLv3 support when openssl is built without
any support for SSLv3 (e.g. by adding EXTRA_OECONF = " -no-ssl3" in
the openssl recipes).

Backport from:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=768611#22
[python2.7-nossl3.patch] only Modules/_ssl.c is backported.

References:
https://bugzilla.yoctoproject.org/show_bug.cgi?id=7015
https://bugzilla.yoctoproject.org/show_bug.cgi?id=6843
http://bugs.python.org/issue22638
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3566

(From OE-Core rev: 926904f65db33aa7a6a54bd6cdc9c8b34f000b0d)

Signed-off-by: Sona Sarmadi <sona.sarmadi@enea.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Sona Sarmadi
2015-01-16 11:16:03 +01:00
committed by Richard Purdie
parent 134246d3d4
commit d759301a34
2 changed files with 38 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
meta/recipes-devtools/python/python/python2.7.3-nossl3.patch Normal file
View File

@@ -0,0 +1,37 @@
python: Building without SSLv3 support
Building without SSLv3 support when openssl is built
without any support for SSLv3
Upstream-Status: Backport
Reference:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=76A8611#22
Signed-off-by: Sona Sarmadi <sona.sarmadi@enea.com>
---
diff -ruN a/Modules/_ssl.c b/Modules/_ssl.c
--- a/Modules/_ssl.c 2014-11-26 07:43:58.755679939 +0100
+++ b/Modules/_ssl.c 2014-11-26 07:49:10.454182400 +0100
@@ -302,8 +302,10 @@
PySSL_BEGIN_ALLOW_THREADS
if (proto_version == PY_SSL_VERSION_TLS1)
self->ctx = SSL_CTX_new(TLSv1_method()); /* Set up context */
+#ifndef OPENSSL_NO_SSL3
else if (proto_version == PY_SSL_VERSION_SSL3)
self->ctx = SSL_CTX_new(SSLv3_method()); /* Set up context */
+#endif
#ifndef OPENSSL_NO_SSL2
else if (proto_version == PY_SSL_VERSION_SSL2)
self->ctx = SSL_CTX_new(SSLv2_method()); /* Set up context */
@@ -1777,8 +1779,10 @@
PyModule_AddIntConstant(m, "PROTOCOL_SSLv2",
PY_SSL_VERSION_SSL2);
#endif
+#ifndef OPENSSL_NO_SSL3
PyModule_AddIntConstant(m, "PROTOCOL_SSLv3",
PY_SSL_VERSION_SSL3);
+#endif
PyModule_AddIntConstant(m, "PROTOCOL_SSLv23",
PY_SSL_VERSION_SSL23);
PyModule_AddIntConstant(m, "PROTOCOL_TLSv1",

1
meta/recipes-devtools/python/python_2.7.3.bb
View File

@@ -36,6 +36,7 @@ SRC_URI += "\
file://python-2.7.3-CVE-2013-1752-smtplib-fix.patch \
file://python-fix-build-error-with-Readline-6.3.patch \
file://python-2.7.3-CVE-2014-1912.patch \
file://python2.7.3-nossl3.patch \
"
S = "${WORKDIR}/Python-${PV}"