procmail: patch CVE-2017-16844.

Take patch from Debian.
https://sources.debian.org/data/main/p/procmail/3.22-26%2Bdeb10u1/debian/patches/30

Signed-off-by: Peter Marko <peter.marko@siemens.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-support/procmail/procmail/CVE-2017-16844.patch

@@ -0,0 +1,20 @@
+From: Santiago Vila <sanvila@debian.org>
+Subject: Fix heap-based buffer overflow in loadbuf()
+Bug-Debian: http://bugs.debian.org/876511
+X-Debian-version: 3.22-26
+
+CVE: CVE-2017-16844
+Upstream-Status: Inactive-Upstream [lastrelease: 2001]
+Signed-off-by: Peter Marko <peter.marko@siemens.com>
+
+--- a/src/formisc.c
++++ b/src/formisc.c
+@@ -103,7 +103,7 @@
+ }
+ 							    /* append to buf */
+ void loadbuf(text,len)const char*const text;const size_t len;
+-{ if(buffilled+len>buflen)			  /* buf can't hold the text */
++{ while(buffilled+len>buflen)			  /* buf can't hold the text */
+      buf=realloc(buf,buflen+=Bsize);
+   tmemmove(buf+buffilled,text,len);buffilled+=len;
+ }

meta-oe/recipes-support/procmail/procmail_3.22.bb

@@ -14,6 +14,7 @@ SRC_URI = "http://www.ring.gr.jp/archives/net/mail/${BPN}/${BP}.tar.gz \
     file://from-debian-to-fix-man-file.patch \
     file://man-file-mailstat.1-from-debian.patch \
     file://CVE-2014-3618.patch \
+    file://CVE-2017-16844.patch \
 "
 SRC_URI[sha256sum] = "087c75b34dd33d8b9df5afe9e42801c9395f4bf373a784d9bc97153b0062e117"