Record CVE-2018-6485 in ChangeLog and NEWS [BZ #22343]

Author: fweimer-rh

ChangeLog

@@ -702,6 +702,7 @@
 2018-01-18  Arjun Shankar  <[email protected]>
 
 	[BZ #22343]
+	CVE-2018-6485
 	* malloc/malloc.c (checked_request2size): call REQUEST_OUT_OF_RANGE
 	after padding.
 	(_int_memalign): check for integer overflow before calling

NEWS

@@ -258,6 +258,10 @@ Security related changes:
   succeeds without returning an absolute path due to unexpected behaviour
   of the Linux kernel getcwd syscall.  Reported by halfdog.
 
+  CVE-2018-6485: The posix_memalign and memalign functions, when called with
+  an object size near the value of SIZE_MAX, would return a pointer to a
+  buffer which is too small, instead of NULL.  Reported by Jakub Wilk.
+
 The following bugs are resolved with this release:
 
   [The release manager will add the list generated by