user/libgd: secfixes (#159)

5 files changed, 388 insertions, 5 deletions

diff --git a/user/libgd/APKBUILD b/user/libgd/APKBUILD
index 13f07cfe0..27de81126 100644
--- a/user/libgd/APKBUILD
+++ b/user/libgd/APKBUILD
@@ -2,7 +2,7 @@
 # Maintainer: 
 pkgname=libgd
 pkgver=2.2.5
-pkgrel=0
+pkgrel=1
 pkgdesc="Library for dynamic image creation"
 url="http://libgd.github.io/"
 arch="all"
@@ -15,10 +15,20 @@ subpackages="$pkgname-dev"
 replaces="gd"
 source="https://github.com/$pkgname/$pkgname/releases/download/gd-$pkgver/$pkgname-$pkgver.tar.xz
 	CVE-2016-7568.patch
+	CVE-2018-5711.patch
+	CVE-2018-1000222.patch
+	CVE-2019-6977.patch
+	CVE-2019-6978.patch
 	"
 
+# secfixes:
+#   2.2.5-r1:
+#     - CVE-2018-5711
+#     - CVE-2018-1000222
+#     - CVE-2019-6977
+#     - CVE-2019-6978
+
 build() {
-	cd "$builddir"
 	./configure \
 		--build=$CBUILD \
 		--host=$CHOST \
@@ -31,12 +41,10 @@ build() {
 }
 
 check() {
-	cd "$builddir"
 	make check
 }
 
 package() {
-	cd "$builddir"
 	make DESTDIR="$pkgdir" install
 }
 
@@ -48,4 +56,8 @@ dev() {
 }
 
 sha512sums="e4598e17a277a75e02255402182cab139cb3f2cffcd68ec05cc10bbeaf6bc7aa39162c3445cd4a7efc1a26b72b9152bbedb187351e3ed099ea51767319997a6b  libgd-2.2.5.tar.xz
-8310d11a2398e8617c9defc4500b9ce3897ac1026002ffa36000f1d1f8df19336005e8c1f6587533f1d787a4a54d7a3a28ad25bddbc966a018aedf4d8704a716  CVE-2016-7568.patch"
+8310d11a2398e8617c9defc4500b9ce3897ac1026002ffa36000f1d1f8df19336005e8c1f6587533f1d787a4a54d7a3a28ad25bddbc966a018aedf4d8704a716  CVE-2016-7568.patch
+d6577566814cbe2d93b141a4216b32acdeb2989dc1712eb137565081b913151bbb4c69911c96b2bb7c90695078a85152d368aad183de494d1283fde25021751b  CVE-2018-5711.patch
+d12462f1b159d50b9032435e9767a5d76e1797a88be950ed33dda7aa17005b7cb60560d04b9520e46d8111e1669d42ce28cb2c508f9c8825d545ac0335d2a10b  CVE-2018-1000222.patch
+df84e469515f684d79ebad163e137401627310a984ac1ae6a4d31b739b3dc6d9144f101e9bfc3211af1d7cdbaa827721d21a9fe528e69b9b60a943ec8a7ab74b  CVE-2019-6977.patch
+3bf31941365a878bef899afa14a89e4ad0fbfb3280d34b2118c8484698e15eff600751ae3ce146a4f006e6c21730cb18899bae3538f6cc2651025274b40cf1ca  CVE-2019-6978.patch"
diff --git a/user/libgd/CVE-2018-1000222.patch b/user/libgd/CVE-2018-1000222.patch
new file mode 100644
index 000000000..80f9712bf
--- /dev/null
+++ b/user/libgd/CVE-2018-1000222.patch
@@ -0,0 +1,73 @@
+From ac16bdf2d41724b5a65255d4c28fb0ec46bc42f5 Mon Sep 17 00:00:00 2001
+From: Mike Frysinger <vapier@gentoo.org>
+Date: Sat, 14 Jul 2018 13:54:08 -0400
+Subject: [PATCH] bmp: check return value in gdImageBmpPtr
+
+Closes #447.
+---
+ src/gd_bmp.c | 17 ++++++++++++++---
+ 1 file changed, 14 insertions(+), 3 deletions(-)
+
+diff --git a/src/gd_bmp.c b/src/gd_bmp.c
+index bde0b9d3..78f40d9a 100644
+--- a/src/gd_bmp.c
++++ b/src/gd_bmp.c
+@@ -47,6 +47,8 @@ static int bmp_read_4bit(gdImagePtr im, gdIOCtxPtr infile, bmp_info_t *info, bmp
+ static int bmp_read_8bit(gdImagePtr im, gdIOCtxPtr infile, bmp_info_t *info, bmp_hdr_t *header);
+ static int bmp_read_rle(gdImagePtr im, gdIOCtxPtr infile, bmp_info_t *info);
+ 
++static int _gdImageBmpCtx(gdImagePtr im, gdIOCtxPtr out, int compression);
++
+ #define BMP_DEBUG(s)
+ 
+ static int gdBMPPutWord(gdIOCtx *out, int w)
+@@ -87,8 +89,10 @@ BGD_DECLARE(void *) gdImageBmpPtr(gdImagePtr im, int *size, int compression)
+ 	void *rv;
+ 	gdIOCtx *out = gdNewDynamicCtx(2048, NULL);
+ 	if (out == NULL) return NULL;
+-	gdImageBmpCtx(im, out, compression);
+-	rv = gdDPExtractData(out, size);
++	if (!_gdImageBmpCtx(im, out, compression))
++		rv = gdDPExtractData(out, size);
++	else
++		rv = NULL;
+ 	out->gd_free(out);
+ 	return rv;
+ }
+@@ -141,6 +145,11 @@ BGD_DECLARE(void) gdImageBmp(gdImagePtr im, FILE *outFile, int compression)
+ 		compression - whether to apply RLE or not.
+ */
+ BGD_DECLARE(void) gdImageBmpCtx(gdImagePtr im, gdIOCtxPtr out, int compression)
++{
++	_gdImageBmpCtx(im, out, compression);
++}
++
++static int _gdImageBmpCtx(gdImagePtr im, gdIOCtxPtr out, int compression)
+ {
+ 	int bitmap_size = 0, info_size, total_size, padding;
+ 	int i, row, xpos, pixel;
+@@ -148,6 +157,7 @@ BGD_DECLARE(void) gdImageBmpCtx(gdImagePtr im, gdIOCtxPtr out, int compression)
+ 	unsigned char *uncompressed_row = NULL, *uncompressed_row_start = NULL;
+ 	FILE *tmpfile_for_compression = NULL;
+ 	gdIOCtxPtr out_original = NULL;
++	int ret = 1;
+ 
+ 	/* No compression if its true colour or we don't support seek */
+ 	if (im->trueColor) {
+@@ -325,6 +335,7 @@ BGD_DECLARE(void) gdImageBmpCtx(gdImagePtr im, gdIOCtxPtr out, int compression)
+ 		out_original = NULL;
+ 	}
+ 
++	ret = 0;
+ cleanup:
+ 	if (tmpfile_for_compression) {
+ #ifdef _WIN32
+@@ -338,7 +349,7 @@ BGD_DECLARE(void) gdImageBmpCtx(gdImagePtr im, gdIOCtxPtr out, int compression)
+ 	if (out_original) {
+ 		out_original->gd_free(out_original);
+ 	}
+-	return;
++	return ret;
+ }
+ 
+ static int compress_row(unsigned char *row, int length)
diff --git a/user/libgd/CVE-2018-5711.patch b/user/libgd/CVE-2018-5711.patch
new file mode 100644
index 000000000..dff2b9ea2
--- /dev/null
+++ b/user/libgd/CVE-2018-5711.patch
@@ -0,0 +1,61 @@
+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 ++++++------
+ tests/gif/.gitignore        |   1 +
+ tests/gif/CMakeLists.txt    |   1 +
+ tests/gif/Makemodule.am     |   2 ++
+ tests/gif/php_bug_75571.c   |  28 ++++++++++++++++++++++++++++
+ tests/gif/php_bug_75571.gif | Bin 0 -> 1731 bytes
+ 6 files changed, 38 insertions(+), 6 deletions(-)
+ create mode 100644 tests/gif/php_bug_75571.c
+ create mode 100644 tests/gif/php_bug_75571.gif
+
+diff --git a/src/gd_gif_in.c b/src/gd_gif_in.c
+index daf26e79..0a8bd717 100644
+--- a/src/gd_gif_in.c
++++ b/src/gd_gif_in.c
+@@ -335,11 +335,6 @@ BGD_DECLARE(gdImagePtr) gdImageCreateFromGifCtx(gdIOCtxPtr fd)
+ 		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 @@ BGD_DECLARE(gdImagePtr) gdImageCreateFromGifCtx(gdIOCtxPtr fd)
+ 		}
+ 	}
+ 
++	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;
diff --git a/user/libgd/CVE-2019-6977.patch b/user/libgd/CVE-2019-6977.patch
new file mode 100644
index 000000000..4cfb9ab98
--- /dev/null
+++ b/user/libgd/CVE-2019-6977.patch
@@ -0,0 +1,21 @@
+Bug: https://bts.adelielinux.org/show_bug.cgi?id=159
+Backported-From: http://git.php.net/?p=php-src.git;a=commit;h=7a12dad4dd6c370835b13afae214b240082c7538
+Author: A. Wilcox <awilfox@adelielinux.org>
+Bug: https://bugs.php.net/bug.php?id=77270
+Author: Christoph M. Becker <cmbecker69@gmx.de>
+Committer: Stanislav Malyshev <stas@php.net>
+Upstream-Status: unknown
+
+--- libgd-2.2.5/src/gd_color_match.c.old	2017-08-30 11:05:54.000000000 +0000
++++ libgd-2.2.5/src/gd_color_match.c	2019-10-03 16:17:55.842322245 +0000
+@@ -31,8 +31,8 @@
+ 		return -4; /* At least 1 color must be allocated */
+ 	}
+ 
+-	buf = (unsigned long *)gdMalloc(sizeof(unsigned long) * 5 * im2->colorsTotal);
+-	memset (buf, 0, sizeof(unsigned long) * 5 * im2->colorsTotal );
++	buf = (unsigned long *)gdMalloc(sizeof(unsigned long) * 5 * gdMaxColors);
++	memset( buf, 0, sizeof(unsigned long) * 5 * gdMaxColors );
+ 
+ 	for (x=0; x < im1->sx; x++) {
+ 		for( y=0; y<im1->sy; y++ ) {
diff --git a/user/libgd/CVE-2019-6978.patch b/user/libgd/CVE-2019-6978.patch
new file mode 100644
index 000000000..0cfdda919
--- /dev/null
+++ b/user/libgd/CVE-2019-6978.patch
@@ -0,0 +1,216 @@
+From 553702980ae89c83f2d6e254d62cf82e204956d0 Mon Sep 17 00:00:00 2001
+From: "Christoph M. Becker" <cmbecker69@gmx.de>
+Date: Thu, 17 Jan 2019 11:54:55 +0100
+Subject: [PATCH] Fix #492: Potential double-free in gdImage*Ptr()
+
+Whenever `gdImage*Ptr()` calls `gdImage*Ctx()` and the latter fails, we
+must not call `gdDPExtractData()`; otherwise a double-free would
+happen.  Since `gdImage*Ctx()` are void functions, and we can't change
+that for BC reasons, we're introducing static helpers which are used
+internally.
+
+We're adding a regression test for `gdImageJpegPtr()`, but not for
+`gdImageGifPtr()` and `gdImageWbmpPtr()` since we don't know how to
+trigger failure of the respective `gdImage*Ctx()` calls.
+
+This potential security issue has been reported by Solmaz Salimi (aka.
+Rooney).
+---
+ src/gd_gif_out.c                  | 18 +++++++++++++++---
+ src/gd_jpeg.c                     | 20 ++++++++++++++++----
+ src/gd_wbmp.c                     | 21 ++++++++++++++++++---
+ tests/jpeg/.gitignore             |  1 +
+ tests/jpeg/CMakeLists.txt         |  1 +
+ tests/jpeg/Makemodule.am          |  3 ++-
+ tests/jpeg/jpeg_ptr_double_free.c | 31 +++++++++++++++++++++++++++++++
+ 7 files changed, 84 insertions(+), 11 deletions(-)
+ create mode 100644 tests/jpeg/jpeg_ptr_double_free.c
+
+diff --git a/src/gd_gif_out.c b/src/gd_gif_out.c
+index 298a5812..d5a95346 100644
+--- a/src/gd_gif_out.c
++++ b/src/gd_gif_out.c
+@@ -99,6 +99,7 @@ static void char_init(GifCtx *ctx);
+ static void char_out(int c, GifCtx *ctx);
+ static void flush_char(GifCtx *ctx);
+ 
++static int _gdImageGifCtx(gdImagePtr im, gdIOCtxPtr out);
+ 
+ 
+ 
+@@ -131,8 +132,11 @@ BGD_DECLARE(void *) gdImageGifPtr(gdImagePtr im, int *size)
+ 	void *rv;
+ 	gdIOCtx *out = gdNewDynamicCtx(2048, NULL);
+ 	if (out == NULL) return NULL;
+-	gdImageGifCtx(im, out);
+-	rv = gdDPExtractData(out, size);
++	if (!_gdImageGifCtx(im, out)) {
++		rv = gdDPExtractData(out, size);
++	} else {
++		rv = NULL;
++	}
+ 	out->gd_free(out);
+ 	return rv;
+ }
+@@ -220,6 +224,12 @@ BGD_DECLARE(void) gdImageGif(gdImagePtr im, FILE *outFile)
+ 
+ */
+ BGD_DECLARE(void) gdImageGifCtx(gdImagePtr im, gdIOCtxPtr out)
++{
++	_gdImageGifCtx(im, out);
++}
++
++/* returns 0 on success, 1 on failure */
++static int _gdImageGifCtx(gdImagePtr im, gdIOCtxPtr out)
+ {
+ 	gdImagePtr pim = 0, tim = im;
+ 	int interlace, BitsPerPixel;
+@@ -231,7 +241,7 @@ BGD_DECLARE(void) gdImageGifCtx(gdImagePtr im, gdIOCtxPtr out)
+ 		based temporary image. */
+ 		pim = gdImageCreatePaletteFromTrueColor(im, 1, 256);
+ 		if(!pim) {
+-			return;
++			return 1;
+ 		}
+ 		tim = pim;
+ 	}
+@@ -247,6 +257,8 @@ BGD_DECLARE(void) gdImageGifCtx(gdImagePtr im, gdIOCtxPtr out)
+ 		/* Destroy palette based temporary image. */
+ 		gdImageDestroy(	pim);
+ 	}
++
++	return 0;
+ }
+ 
+ 
+diff --git a/src/gd_jpeg.c b/src/gd_jpeg.c
+index fc058420..96ef4302 100644
+--- a/src/gd_jpeg.c
++++ b/src/gd_jpeg.c
+@@ -123,6 +123,8 @@ static void fatal_jpeg_error(j_common_ptr cinfo)
+ 	exit(99);
+ }
+ 
++static int _gdImageJpegCtx(gdImagePtr im, gdIOCtx *outfile, int quality);
++
+ /*
+  * Write IM to OUTFILE as a JFIF-formatted JPEG image, using quality
+  * QUALITY.  If QUALITY is in the range 0-100, increasing values
+@@ -237,8 +239,11 @@ BGD_DECLARE(void *) gdImageJpegPtr(gdImagePtr im, int *size, int quality)
+ 	void *rv;
+ 	gdIOCtx *out = gdNewDynamicCtx(2048, NULL);
+ 	if (out == NULL) return NULL;
+-	gdImageJpegCtx(im, out, quality);
+-	rv = gdDPExtractData(out, size);
++	if (!_gdImageJpegCtx(im, out, quality)) {
++		rv = gdDPExtractData(out, size);
++	} else {
++		rv = NULL;
++	}
+ 	out->gd_free(out);
+ 	return rv;
+ }
+@@ -259,6 +264,12 @@ void jpeg_gdIOCtx_dest(j_compress_ptr cinfo, gdIOCtx *outfile);
+ 
+ */
+ BGD_DECLARE(void) gdImageJpegCtx(gdImagePtr im, gdIOCtx *outfile, int quality)
++{
++	_gdImageJpegCtx(im, outfile, quality);
++}
++
++/* returns 0 on success, 1 on failure */
++static int _gdImageJpegCtx(gdImagePtr im, gdIOCtx *outfile, int quality)
+ {
+ 	struct jpeg_compress_struct cinfo;
+ 	struct jpeg_error_mgr jerr;
+@@ -293,7 +304,7 @@ BGD_DECLARE(void) gdImageJpegCtx(gdImagePtr im, gdIOCtx *outfile, int quality)
+ 		if(row) {
+ 			gdFree(row);
+ 		}
+-		return;
++		return 1;
+ 	}
+ 
+ 	cinfo.err->emit_message = jpeg_emit_message;
+@@ -334,7 +345,7 @@ BGD_DECLARE(void) gdImageJpegCtx(gdImagePtr im, gdIOCtx *outfile, int quality)
+ 	if(row == 0) {
+ 		gd_error("gd-jpeg: error: unable to allocate JPEG row structure: gdCalloc returns NULL\n");
+ 		jpeg_destroy_compress(&cinfo);
+-		return;
++		return 1;
+ 	}
+ 
+ 	rowptr[0] = row;
+@@ -411,6 +424,7 @@ BGD_DECLARE(void) gdImageJpegCtx(gdImagePtr im, gdIOCtx *outfile, int quality)
+ 	jpeg_finish_compress(&cinfo);
+ 	jpeg_destroy_compress(&cinfo);
+ 	gdFree(row);
++	return 0;
+ }
+ 
+ 
+diff --git a/src/gd_wbmp.c b/src/gd_wbmp.c
+index f19a1c96..a49bdbec 100644
+--- a/src/gd_wbmp.c
++++ b/src/gd_wbmp.c
+@@ -88,6 +88,8 @@ int gd_getin(void *in)
+ 	return (gdGetC((gdIOCtx *)in));
+ }
+ 
++static int _gdImageWBMPCtx(gdImagePtr image, int fg, gdIOCtx *out);
++
+ /*
+ 	Function: gdImageWBMPCtx
+ 
+@@ -100,6 +102,12 @@ int gd_getin(void *in)
+ 		out   - the stream where to write
+ */
+ BGD_DECLARE(void) gdImageWBMPCtx(gdImagePtr image, int fg, gdIOCtx *out)
++{
++	_gdImageWBMPCtx(image, fg, out);
++}
++
++/* returns 0 on success, 1 on failure */
++static int _gdImageWBMPCtx(gdImagePtr image, int fg, gdIOCtx *out)
+ {
+ 	int x, y, pos;
+ 	Wbmp *wbmp;
+@@ -107,7 +115,7 @@ BGD_DECLARE(void) gdImageWBMPCtx(gdImagePtr image, int fg, gdIOCtx *out)
+ 	/* create the WBMP */
+ 	if((wbmp = createwbmp(gdImageSX(image), gdImageSY(image), WBMP_WHITE)) == NULL) {
+ 		gd_error("Could not create WBMP\n");
+-		return;
++		return 1;
+ 	}
+ 
+ 	/* fill up the WBMP structure */
+@@ -123,11 +131,15 @@ BGD_DECLARE(void) gdImageWBMPCtx(gdImagePtr image, int fg, gdIOCtx *out)
+ 
+ 	/* write the WBMP to a gd file descriptor */
+ 	if(writewbmp(wbmp, &gd_putout, out)) {
++		freewbmp(wbmp);
+ 		gd_error("Could not save WBMP\n");
++		return 1;
+ 	}
+ 
+ 	/* des submitted this bugfix: gdFree the memory. */
+ 	freewbmp(wbmp);
++
++	return 0;
+ }
+ 
+ /*
+@@ -271,8 +283,11 @@ BGD_DECLARE(void *) gdImageWBMPPtr(gdImagePtr im, int *size, int fg)
+ 	void *rv;
+ 	gdIOCtx *out = gdNewDynamicCtx(2048, NULL);
+ 	if (out == NULL) return NULL;
+-	gdImageWBMPCtx(im, fg, out);
+-	rv = gdDPExtractData(out, size);
++	if (!_gdImageWBMPCtx(im, fg, out)) {
++		rv = gdDPExtractData(out, size);
++	} else {
++		rv = NULL;
++	}
+ 	out->gd_free(out);
+ 	return rv;
+ }