python: fix CVE-2019-5010

srcpkgs/python/patches/CVE-2019-5010.patch

@@ -0,0 +1,33 @@
+commit 06b15424b0dcacb1c551b2a36e739fffa8d0c595
+Author: Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com>
+Date:   Tue Jan 15 15:11:52 2019 -0800
+
+    bpo-35746: Fix segfault in ssl's cert parser (GH-11569)
+    
+    
+    Fix a NULL pointer deref in ssl module. The cert parser did not handle CRL
+    distribution points with empty DP or URI correctly. A malicious or buggy
+    certificate can result into segfault.
+    
+    Signed-off-by: Christian Heimes <christian@python.org>
+    
+    https://bugs.python.org/issue35746
+    (cherry picked from commit a37f52436f9aa4b9292878b72f3ff1480e2606c3)
+    
+    Co-authored-by: Christian Heimes <christian@python.org>
+
+diff --git Modules/_ssl.c Modules/_ssl.c
+index a96c419260..19bb1207b4 100644
+--- Modules/_ssl.c
++++ Modules/_ssl.c
+@@ -1223,6 +1223,10 @@ _get_crl_dp(X509 *certificate) {
+         STACK_OF(GENERAL_NAME) *gns;
+ 
+         dp = sk_DIST_POINT_value(dps, i);
++        if (dp->distpoint == NULL) {
++            /* Ignore empty DP value, CVE-2019-5010 */
++            continue;
++        }
+         gns = dp->distpoint->name.fullname;
+ 
+         for (j=0; j < sk_GENERAL_NAME_num(gns); j++) {

srcpkgs/python/template

@@ -4,7 +4,7 @@
 #
 pkgname=python
 version=2.7.15
-revision=4
+revision=5
 wrksrc="Python-${version}"
 hostmakedepends="pkg-config"
 makedepends="libffi-devel readline-devel gdbm-devel libressl-devel expat-devel