mirror of
https://git.in.rschanz.org/ryan77627/guix.git
synced 2024-11-19 21:27:37 -05:00
8147d7c675
* gnu/packages/php.scm (php)[inputs]: Use gd-for-php. (gd-for-php): New private variable. * gnu/packages/patches/gd-CVE-2018-5711.patch: New file. * gnu/local.mk (dist_patch_DATA): Add it.
61 lines
1.4 KiB
Diff
61 lines
1.4 KiB
Diff
This patch is adapted from commit a11f47475e6443b7f32d21f2271f28f417e2ac04 and
|
|
fixes CVE-2018-5711.
|
|
|
|
From a11f47475e6443b7f32d21f2271f28f417e2ac04 Mon Sep 17 00:00:00 2001
|
|
From: "Christoph M. Becker" <cmbecker69@gmx.de>
|
|
Date: Wed, 29 Nov 2017 19:37:38 +0100
|
|
Subject: [PATCH] Fix #420: Potential infinite loop in gdImageCreateFromGifCtx
|
|
|
|
Due to a signedness confusion in `GetCode_` a corrupt GIF file can
|
|
trigger an infinite loop. Furthermore we make sure that a GIF without
|
|
any palette entries is treated as invalid *after* open palette entries
|
|
have been removed.
|
|
|
|
CVE-2018-5711
|
|
|
|
See also https://bugs.php.net/bug.php?id=75571.
|
|
---
|
|
src/gd_gif_in.c | 12 ++++++------
|
|
1 file changed, 38 insertions(+), 6 deletions(-)
|
|
|
|
diff --git a/src/gd_gif_in.c b/src/gd_gif_in.c
|
|
index daf26e7..0a8bd71 100644
|
|
--- a/src/gd_gif_in.c
|
|
+++ b/src/gd_gif_in.c
|
|
@@ -335,11 +335,6 @@ terminated:
|
|
return 0;
|
|
}
|
|
|
|
- if(!im->colorsTotal) {
|
|
- gdImageDestroy(im);
|
|
- return 0;
|
|
- }
|
|
-
|
|
/* Check for open colors at the end, so
|
|
* we can reduce colorsTotal and ultimately
|
|
* BitsPerPixel */
|
|
@@ -351,6 +346,11 @@ terminated:
|
|
}
|
|
}
|
|
|
|
+ if(!im->colorsTotal) {
|
|
+ gdImageDestroy(im);
|
|
+ return 0;
|
|
+ }
|
|
+
|
|
return im;
|
|
}
|
|
|
|
@@ -447,7 +447,7 @@ static int
|
|
GetCode_(gdIOCtx *fd, CODE_STATIC_DATA *scd, int code_size, int flag, int *ZeroDataBlockP)
|
|
{
|
|
int i, j, ret;
|
|
- unsigned char count;
|
|
+ int count;
|
|
|
|
if(flag) {
|
|
scd->curbit = 0;
|
|
|
|
--
|
|
2.13.6
|
|
|