diff options
Diffstat (limited to 'debian/patches/1022-dix-integer-overflow-in-REQUEST_FIXED_SIZE-CVE-.full.patch')
-rw-r--r-- | debian/patches/1022-dix-integer-overflow-in-REQUEST_FIXED_SIZE-CVE-.full.patch | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/debian/patches/1022-dix-integer-overflow-in-REQUEST_FIXED_SIZE-CVE-.full.patch b/debian/patches/1022-dix-integer-overflow-in-REQUEST_FIXED_SIZE-CVE-.full.patch new file mode 100644 index 000000000..3dddcb0f4 --- /dev/null +++ b/debian/patches/1022-dix-integer-overflow-in-REQUEST_FIXED_SIZE-CVE-.full.patch @@ -0,0 +1,46 @@ +From 82d7279ebfa04f319e68145b3adbf65716e59584 Mon Sep 17 00:00:00 2001 +From: Alan Coopersmith <alan.coopersmith@oracle.com> +Date: Wed, 22 Jan 2014 23:44:46 -0800 +Subject: [PATCH 22/40] dix: integer overflow in REQUEST_FIXED_SIZE() + [CVE-2014-8092 4/4] + +Force use of 64-bit integers when evaluating data provided by clients +in 32-bit fields which can overflow when added or multiplied during +checks. + +Reported-by: Ilja Van Sprundel <ivansprundel@ioactive.com> +Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com> +Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net> + +RHEL5: add #include <stdint.h> for uint64_t +v3: backport to nx-libs 3.6.x (Mike DePaulo) +--- + nx-X11/programs/Xserver/include/dix.h | 5 ++++- + 1 file changed, 4 insertions(+), 1 deletion(-) + +diff --git a/nx-X11/programs/Xserver/include/dix.h b/nx-X11/programs/Xserver/include/dix.h +index 1b8fc42..d82979c 100644 +--- a/nx-X11/programs/Xserver/include/dix.h ++++ b/nx-X11/programs/Xserver/include/dix.h +@@ -50,6 +50,8 @@ SOFTWARE. + #ifndef DIX_H + #define DIX_H + ++#include <stdint.h> ++ + #include "gc.h" + #include "window.h" + #include "input.h" +@@ -73,7 +75,8 @@ SOFTWARE. + + #define REQUEST_FIXED_SIZE(req, n)\ + if (((sizeof(req) >> 2) > client->req_len) || \ +- (((sizeof(req) + (n) + 3) >> 2) != client->req_len)) \ ++ ((n >> 2) >= client->req_len) || \ ++ ((((uint64_t) sizeof(req) + (n) + 3) >> 2) != (uint64_t) client->req_len)) \ + return(BadLength) + + #define LEGAL_NEW_RESOURCE(id,client)\ +-- +2.1.4 + |