blob: 99c27a7a02fb7bf3d22f5b5697894bb548668059 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
From a660e3de422731b94d4a134d27555430cbb6fb39 Mon Sep 17 00:00:00 2001
From: Werner Lemberg <wl@gnu.org>
Date: Fri, 26 Aug 2016 00:23:27 +0200
Subject: [PATCH] [type1] Fix heap buffer overflow.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36
* src/type1/t1load.c (parse_charstrings): Reject fonts that don't
contain glyph names.
---
diff --git a/src/type1/t1load.c b/src/type1/t1load.c
index c981adcf..f8bf3132 100644
--- a/src/type1/t1load.c
+++ b/src/type1/t1load.c
@@ -1776,6 +1776,12 @@
}
}
+ if ( !n )
+ {
+ error = FT_THROW( Invalid_File_Format );
+ goto Fail;
+ }
+
loader->num_glyphs = n;
/* if /.notdef is found but does not occupy index 0, do our magic. */
--
2.12.0
|
