aboutsummaryrefslogtreecommitdiff
path: root/gnu
diff options
context:
space:
mode:
authorLeo Famulari <leo@famulari.name>2016-09-29 11:32:34 -0400
committerLeo Famulari <leo@famulari.name>2016-10-01 12:27:37 -0400
commit917de2511b21fa95d82f199d98e00b420ec20e3e (patch)
tree87af7b3cd9daf646ba0cdb0f3f120252bc646164 /gnu
parent43f7af428e139f64b9ec229eb74918e328a63a5a (diff)
downloadguix-917de2511b21fa95d82f199d98e00b420ec20e3e.tar
guix-917de2511b21fa95d82f199d98e00b420ec20e3e.tar.gz
gnu: gd: Fix CVE-2016-7568.
* gnu/packages/patches/gd-CVE-2016-7568.patch: New file. * gnu/local.mk (dist_patch_DATA): Add it. * gnu/packages/gd.scm (gd)[source]: Use it.
Diffstat (limited to 'gnu')
-rw-r--r--gnu/local.mk1
-rw-r--r--gnu/packages/gd.scm3
-rw-r--r--gnu/packages/patches/gd-CVE-2016-7568.patch44
3 files changed, 47 insertions, 1 deletions
diff --git a/gnu/local.mk b/gnu/local.mk
index 6e68ad4a6c..4260a928e9 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -529,6 +529,7 @@ dist_patch_DATA = \
%D%/packages/patches/gcc-cross-environment-variables.patch \
%D%/packages/patches/gcc-libvtv-runpath.patch \
%D%/packages/patches/gcc-5.0-libvtv-runpath.patch \
+ %D%/packages/patches/gd-CVE-2016-7568.patch \
%D%/packages/patches/gd-fix-gd2-read-test.patch \
%D%/packages/patches/gd-fix-tests-on-i686.patch \
%D%/packages/patches/gegl-CVE-2012-4433.patch \
diff --git a/gnu/packages/gd.scm b/gnu/packages/gd.scm
index 4ba019460f..6c94d35bdf 100644
--- a/gnu/packages/gd.scm
+++ b/gnu/packages/gd.scm
@@ -50,7 +50,8 @@
(sha256
(base32
"0g3xz8jpz1pl2zzmssglrpa9nxiaa7rmcmvgpbrjz8k9cyynqsvl"))
- (patches (search-patches "gd-fix-gd2-read-test.patch"
+ (patches (search-patches "gd-CVE-2016-7568.patch"
+ "gd-fix-gd2-read-test.patch"
"gd-fix-tests-on-i686.patch"))))
(build-system gnu-build-system)
(native-inputs
diff --git a/gnu/packages/patches/gd-CVE-2016-7568.patch b/gnu/packages/patches/gd-CVE-2016-7568.patch
new file mode 100644
index 0000000000..6a1a63296c
--- /dev/null
+++ b/gnu/packages/patches/gd-CVE-2016-7568.patch
@@ -0,0 +1,44 @@
+Fix CVE-2016-7568 (integer overflow in gdImageWebpCtx()):
+
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7568
+
+Patch copied from upstream source repository:
+
+https://github.com/libgd/libgd/commit/2806adfdc27a94d333199345394d7c302952b95f
+
+From 2806adfdc27a94d333199345394d7c302952b95f Mon Sep 17 00:00:00 2001
+From: trylab <trylab@users.noreply.github.com>
+Date: Tue, 6 Sep 2016 18:35:32 +0800
+Subject: [PATCH] Fix integer overflow in gdImageWebpCtx
+
+Integer overflow can be happened in expression gdImageSX(im) * 4 *
+gdImageSY(im). It could lead to heap buffer overflow in the following
+code. This issue has been reported to the PHP Bug Tracking System. The
+proof-of-concept file will be supplied some days later. This issue was
+discovered by Ke Liu of Tencent's Xuanwu LAB.
+---
+ src/gd_webp.c | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+diff --git a/src/gd_webp.c b/src/gd_webp.c
+index 8eb4dee..9886399 100644
+--- a/src/gd_webp.c
++++ b/src/gd_webp.c
+@@ -199,6 +199,14 @@ BGD_DECLARE(void) gdImageWebpCtx (gdImagePtr im, gdIOCtx * outfile, int quality)
+ quality = 80;
+ }
+
++ if (overflow2(gdImageSX(im), 4)) {
++ return;
++ }
++
++ if (overflow2(gdImageSX(im) * 4, gdImageSY(im))) {
++ return;
++ }
++
+ argb = (uint8_t *)gdMalloc(gdImageSX(im) * 4 * gdImageSY(im));
+ if (!argb) {
+ return;
+--
+2.10.0
+