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authorMax Rees <maxcrees@me.com>2020-03-03 13:44:15 +0000
committerMax Rees <maxcrees@me.com>2020-03-09 21:27:45 -0500
commitc343566407755f9eb65e10b6a4dfe165a28330b6 (patch)
tree6aeaecd9e349d93a6ad7c3d62f82ed448d26d806 /user/libgd/CVE-2018-14553.patch
parent3c2bf265c6afba11823913a0d8f018782985f8d4 (diff)
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user/libgd: patch CVE-2018-14553 (#240)
Diffstat (limited to 'user/libgd/CVE-2018-14553.patch')
-rw-r--r--user/libgd/CVE-2018-14553.patch99
1 files changed, 99 insertions, 0 deletions
diff --git a/user/libgd/CVE-2018-14553.patch b/user/libgd/CVE-2018-14553.patch
new file mode 100644
index 000000000..7510101d1
--- /dev/null
+++ b/user/libgd/CVE-2018-14553.patch
@@ -0,0 +1,99 @@
+From a93eac0e843148dc2d631c3ba80af17e9c8c860f Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?F=C3=A1bio=20Cabral=20Pacheco?= <fcabralpacheco@gmail.com>
+Date: Fri, 20 Dec 2019 12:03:33 -0300
+Subject: [PATCH] Fix potential NULL pointer dereference in gdImageClone()
+
+---
+ src/gd.c | 9 +--------
+ tests/gdimageclone/CMakeLists.txt | 1 +
+ tests/gdimageclone/Makemodule.am | 3 ++-
+ tests/gdimageclone/style.c | 30 ++++++++++++++++++++++++++++++
+ 5 files changed, 35 insertions(+), 9 deletions(-)
+ create mode 100644 tests/gdimageclone/style.c
+
+diff --git a/src/gd.c b/src/gd.c
+index 592a0286..d564d1f9 100644
+--- a/src/gd.c
++++ b/src/gd.c
+@@ -2865,14 +2865,6 @@ BGD_DECLARE(gdImagePtr) gdImageClone (gdImagePtr src) {
+ }
+ }
+
+- if (src->styleLength > 0) {
+- dst->styleLength = src->styleLength;
+- dst->stylePos = src->stylePos;
+- for (i = 0; i < src->styleLength; i++) {
+- dst->style[i] = src->style[i];
+- }
+- }
+-
+ dst->interlace = src->interlace;
+
+ dst->alphaBlendingFlag = src->alphaBlendingFlag;
+@@ -2907,6 +2899,7 @@ BGD_DECLARE(gdImagePtr) gdImageClone (gdImagePtr src) {
+
+ if (src->style) {
+ gdImageSetStyle(dst, src->style, src->styleLength);
++ dst->stylePos = src->stylePos;
+ }
+
+ for (i = 0; i < gdMaxColors; i++) {
+diff --git a/tests/gdimageclone/CMakeLists.txt b/tests/gdimageclone/CMakeLists.txt
+index e6ccc318..662f4e96 100644
+--- a/tests/gdimageclone/CMakeLists.txt
++++ b/tests/gdimageclone/CMakeLists.txt
+@@ -1,5 +1,6 @@
+ LIST(APPEND TESTS_FILES
+ bug00300
++ style
+ )
+
+ ADD_GD_TESTS()
+diff --git a/tests/gdimageclone/Makemodule.am b/tests/gdimageclone/Makemodule.am
+index 4b1b54c0..51abf5c1 100644
+--- a/tests/gdimageclone/Makemodule.am
++++ b/tests/gdimageclone/Makemodule.am
+@@ -1,5 +1,6 @@
+ libgd_test_programs += \
+- gdimageclone/bug00300
++ gdimageclone/bug00300 \
++ gdimageclone/style
+
+ EXTRA_DIST += \
+ gdimageclone/CMakeLists.txt
+diff --git a/tests/gdimageclone/style.c b/tests/gdimageclone/style.c
+new file mode 100644
+index 00000000..c2b246ed
+--- /dev/null
++++ b/tests/gdimageclone/style.c
+@@ -0,0 +1,30 @@
++/**
++ * Cloning an image should exactly reproduce all style related data
++ */
++
++
++#include <string.h>
++#include "gd.h"
++#include "gdtest.h"
++
++
++int main()
++{
++ gdImagePtr im, clone;
++ int style[] = {0, 0, 0};
++
++ im = gdImageCreate(8, 8);
++ gdImageSetStyle(im, style, sizeof(style)/sizeof(style[0]));
++
++ clone = gdImageClone(im);
++ gdTestAssert(clone != NULL);
++
++ gdTestAssert(clone->styleLength == im->styleLength);
++ gdTestAssert(clone->stylePos == im->stylePos);
++ gdTestAssert(!memcmp(clone->style, im->style, sizeof(style)/sizeof(style[0])));
++
++ gdImageDestroy(clone);
++ gdImageDestroy(im);
++
++ return gdNumFailures();
++}