diff options
Diffstat (limited to 'meta/recipes-extended/ghostscript/ghostscript/0001-pdfwrite-Guard-against-trying-to-output-an-infinite-.patch')
-rw-r--r-- | meta/recipes-extended/ghostscript/ghostscript/0001-pdfwrite-Guard-against-trying-to-output-an-infinite-.patch | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/meta/recipes-extended/ghostscript/ghostscript/0001-pdfwrite-Guard-against-trying-to-output-an-infinite-.patch b/meta/recipes-extended/ghostscript/ghostscript/0001-pdfwrite-Guard-against-trying-to-output-an-infinite-.patch deleted file mode 100644 index bac7365f3c..0000000000 --- a/meta/recipes-extended/ghostscript/ghostscript/0001-pdfwrite-Guard-against-trying-to-output-an-infinite-.patch +++ /dev/null | |||
@@ -1,49 +0,0 @@ | |||
1 | From 39b1e54b2968620723bf32e96764c88797714879 Mon Sep 17 00:00:00 2001 | ||
2 | From: Ken Sharp <ken.sharp@artifex.com> | ||
3 | Date: Wed, 18 Apr 2018 15:46:32 +0100 | ||
4 | Subject: [PATCH] pdfwrite - Guard against trying to output an infinite number | ||
5 | |||
6 | Bug #699255 " Buffer overflow on pprintg1 due to mishandle postscript file data to pdf" | ||
7 | |||
8 | The file uses an enormous parameter to xyxhow, causing an overflow in | ||
9 | the calculation of text positioning (value > 1e39). | ||
10 | |||
11 | Since this is basically a nonsense value, and PostScript only supports | ||
12 | real values up to 1e38, this patch follows the same approach as for | ||
13 | a degenerate CTM, and treats it as 0. | ||
14 | |||
15 | Adobe Acrobat Distiller throws a limitcheck error, so we could do that | ||
16 | instead if this approach proves to be a problem. | ||
17 | |||
18 | Upstream-Status: Backport | ||
19 | git://git.ghostscript.com/ghostpdl.git | ||
20 | CVE: CVE-2018-10194 | ||
21 | Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com> | ||
22 | |||
23 | --- | ||
24 | devices/vector/gdevpdts.c | 7 ++++++- | ||
25 | 1 file changed, 6 insertions(+), 1 deletion(-) | ||
26 | |||
27 | diff --git a/devices/vector/gdevpdts.c b/devices/vector/gdevpdts.c | ||
28 | index 848ad78..172fe6b 100644 | ||
29 | --- a/devices/vector/gdevpdts.c | ||
30 | +++ b/devices/vector/gdevpdts.c | ||
31 | @@ -103,9 +103,14 @@ append_text_move(pdf_text_state_t *pts, double dw) | ||
32 | static int | ||
33 | set_text_distance(gs_point *pdist, double dx, double dy, const gs_matrix *pmat) | ||
34 | { | ||
35 | - int code = gs_distance_transform_inverse(dx, dy, pmat, pdist); | ||
36 | + int code; | ||
37 | double rounded; | ||
38 | |||
39 | + if (dx > 1e38 || dy > 1e38) | ||
40 | + code = gs_error_undefinedresult; | ||
41 | + else | ||
42 | + code = gs_distance_transform_inverse(dx, dy, pmat, pdist); | ||
43 | + | ||
44 | if (code == gs_error_undefinedresult) { | ||
45 | /* The CTM is degenerate. | ||
46 | Can't know the distance in user space. | ||
47 | -- | ||
48 | 2.7.4 | ||
49 | |||