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Resolves: #1076676 CVE-2014-2497 NULL pointer dereference in gdImageCreateFromXpm()

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This commit is contained in:
Jozef Mlich 2014-07-16 18:08:46 +02:00
parent 3077453ae3
commit 547d117bd8
2 changed files with 25 additions and 1 deletions
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18
gd-2.1.0-color_c_null_pointer.patch Normal file
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@ -0,0 +1,18 @@
diff -up ./src/gdxpm.c.color_c_null_pointer ./src/gdxpm.c
--- ./src/gdxpm.c.color_c_null_pointer 2013-06-25 11:58:23.000000000 +0200
+++ ./src/gdxpm.c 2014-07-16 16:43:44.000000000 +0200
@@ -62,6 +62,13 @@ BGD_DECLARE(gdImagePtr) gdImageCreateFro
for(i = 0; i < number; i++) {
char *c_color = image.colorTable[i].c_color;
+ if (!c_color)
+ {
+ /* unsupported color key or color key not defined */
+ gdImageDestroy(im);
+ im = 0;
+ goto done;
+ }
if(strcmp(c_color, "None") == 0) {
colors[i] = gdImageGetTransparent(im);
if(colors[i] == -1) colors[i] = gdImageColorAllocate(im, 0, 0, 0);
diff -up ./x.color_c_null_pointer ./x

8
gd.spec
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@ -5,7 +5,7 @@
Summary: A graphics library for quick creation of PNG or JPEG images
Name: gd
Version: 2.1.0
Release: 5%{?prever}%{?short}%{?dist}
Release: 6%{?prever}%{?short}%{?dist}
Group: System Environment/Libraries
License: MIT
URL: http://libgd.bitbucket.org/
@ -18,6 +18,7 @@ Source0: https://bitbucket.org/libgd/gd-libgd/downloads/libgd-%{version}%{
%endif
Patch1: gd-2.1.0-multilib.patch
Patch2: gd-fixautoconf.patch
Patch3: gd-2.1.0-color_c_null_pointer.patch
BuildRequires: freetype-devel
BuildRequires: fontconfig-devel
@ -75,6 +76,7 @@ files for gd, a graphics library for creating PNG and JPEG graphics.
%setup -q -n libgd-%{version}%{?prever:-%{prever}}
%patch1 -p1 -b .mlib
%patch2 -p1 -b .automake
%patch3 -p1 -b .color_c_null_pointer
# https://bitbucket.org/libgd/gd-libgd/issue/77
sed -e '/GD_VERSION_STRING/s/-alpha//' \
@ -139,6 +141,10 @@ make check
%changelog
* Wed Jul 16 2014 Jozef Mlich <jmlich@redhat.com> - 2.1.0-6
- Resolves: #1076676 CVE-2014-2497
NULL pointer dereference in gdImageCreateFromXpm()
* Sat Jun 07 2014 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 2.1.0-5
- Rebuilt for https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild