| Brad Bishop | 6e60e8b | 2018-02-01 10:27:11 -0500 | [diff] [blame] | 1 | From 98f6da60b9d463c617e631fc254cf6d66f2e8e3c Mon Sep 17 00:00:00 2001 |
| 2 | From: Chris Liddell <chris.liddell@artifex.com> |
| 3 | Date: Mon, 12 Jun 2017 13:15:17 +0100 |
| 4 | Subject: [PATCH] Bug 698026: bounds check zone pointers in Ins_IP() |
| 5 | |
| 6 | --- |
| 7 | base/ttinterp.c | 4 +++- |
| 8 | 1 file changed, 3 insertions(+), 1 deletion(-) |
| 9 | |
| 10 | --- end of original header |
| 11 | |
| 12 | CVE: CVE-2017-9612 |
| 13 | |
| 14 | Upstream-Status: Backport [git://git.ghostscript.com/ghostpdl.git] |
| 15 | |
| 16 | Signed-off-by: Joe Slater <joe.slater@windriver.com> |
| 17 | |
| 18 | diff --git a/base/ttinterp.c b/base/ttinterp.c |
| 19 | index f6a6d95..e7c9d68 100644 |
| 20 | --- a/base/ttinterp.c |
| 21 | +++ b/base/ttinterp.c |
| 22 | @@ -4129,7 +4129,9 @@ static int nInstrCount=0; |
| 23 | Int point; |
| 24 | (void)args; |
| 25 | |
| 26 | - if ( CUR.top < CUR.GS.loop ) |
| 27 | + if ( CUR.top < CUR.GS.loop || |
| 28 | + BOUNDS(CUR.GS.rp1, CUR.zp0.n_points) || |
| 29 | + BOUNDS(CUR.GS.rp2, CUR.zp1.n_points)) |
| 30 | { |
| 31 | CUR.error = TT_Err_Invalid_Reference; |
| 32 | return; |
| 33 | -- |
| 34 | 1.7.9.5 |
| 35 | |