From c61b4d41c9647a54a329aa021341c0eb032b793e Mon Sep 17 00:00:00 2001 From: Carlos O'Donell Date: Mon, 23 Sep 2013 00:52:09 -0400 Subject: BZ #15754: CVE-2013-4788 The pointer guard used for pointer mangling was not initialized for static applications resulting in the security feature being disabled. The pointer guard is now correctly initialized to a random value for static applications. Existing static applications need to be recompiled to take advantage of the fix. The test tst-ptrguard1-static and tst-ptrguard1 add regression coverage to ensure the pointer guards are sufficiently random and initialized to a default value. --- sysdeps/generic/stackguard-macros.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'sysdeps/generic') diff --git a/sysdeps/generic/stackguard-macros.h b/sysdeps/generic/stackguard-macros.h index ababf65d37..4fa3d96f79 100644 --- a/sysdeps/generic/stackguard-macros.h +++ b/sysdeps/generic/stackguard-macros.h @@ -2,3 +2,6 @@ extern uintptr_t __stack_chk_guard; #define STACK_CHK_GUARD __stack_chk_guard + +extern uintptr_t __pointer_chk_guard_local; +#define POINTER_CHK_GUARD __pointer_chk_guard_local -- cgit 1.4.1