gnu: libjpeg-turbo: Fix CVE-2019-13960 and CVE-2019-2201.

* gnu/packages/patches/libjpeg-turbo-CVE-2019-2201.patch: New file.
* gnu/local.mk (dist_patch_DATA): Adjust accordingly.
* gnu/packages/image.scm (libjpeg-turbo/fixed): New variable.
(libjpeg-turbo)[replacement]: New field.

gnu/local.mk

@@ -1062,6 +1062,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/libgnomeui-utf8.patch			\
   %D%/packages/patches/libgpg-error-gawk-compat.patch		\
   %D%/packages/patches/libffi-3.2.1-complex-alpha.patch		\
+  %D%/packages/patches/libjpeg-turbo-CVE-2019-2201.patch	\
   %D%/packages/patches/libjxr-fix-function-signature.patch	\
   %D%/packages/patches/libjxr-fix-typos.patch			\
   %D%/packages/patches/libotr-test-auth-fix.patch		\

gnu/packages/image.scm

@@ -19,7 +19,7 @@
 ;;; Copyright © 2018 Joshua Sierles, Nextjournal <joshua@nextjournal.com>
 ;;; Copyright © 2018 Fis Trivial <ybbs.daans@hotmail.com>
 ;;; Copyright © 2018 Pierre Neidhardt <mail@ambrevar.xyz>
-;;; Copyright © 2018 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2018, 2019 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2018 Pierre-Antoine Rouby <contact@parouby.fr>
 ;;; Copyright © 2018 Alex Vong <alexvong1995@gmail.com>
 ;;; Copyright © 2018 Rutger Helling <rhelling@mykolab.com>
@@ -1489,6 +1489,7 @@ is hereby granted."))))
   (package
     (name "libjpeg-turbo")
     (version "2.0.2")
+    (replacement libjpeg-turbo/fixed)
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://sourceforge/libjpeg-turbo/"
@@ -1518,6 +1519,20 @@ and decompress to 32-bit and big-endian pixel buffers (RGBX, XBGR, etc.).")
                    license:ijg          ;the libjpeg library and associated tools
                    license:zlib))))     ;the libjpeg-turbo SIMD extensions
 
+;; Replacement package to fix CVE-2019-13960 and CVE-2019-2201.
+(define libjpeg-turbo/fixed
+  (package
+    (inherit libjpeg-turbo)
+    (version "2.0.3")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://sourceforge/libjpeg-turbo/"
+                                  version "/libjpeg-turbo-" version ".tar.gz"))
+              (sha256
+               (base32
+                "1ds16bnj17v6hzd43w8pzijz3imd9am4hw75ir0fxm240m8dwij2"))
+              (patches (search-patches "libjpeg-turbo-CVE-2019-2201.patch"))))))
+
 (define-public niftilib
   (package
     (name "niftilib")

gnu/packages/patches/libjpeg-turbo-CVE-2019-2201.patch

@@ -0,0 +1,31 @@
+Fix integer overflow which can potentially lead to RCE.
+
+https://www.openwall.com/lists/oss-security/2019/11/11/1
+https://nvd.nist.gov/vuln/detail/CVE-2019-2201
+
+The problem was partially fixed in 2.0.3.  This patch is a follow-up.
+https://github.com/libjpeg-turbo/libjpeg-turbo/issues/388
+https://github.com/libjpeg-turbo/libjpeg-turbo/commit/c30b1e72dac76343ef9029833d1561de07d29bad
+
+diff --git a/tjbench.c b/tjbench.c
+index a7d397318..13a5bde62 100644
+--- a/tjbench.c
++++ b/tjbench.c
+@@ -171,7 +171,7 @@ static int decomp(unsigned char *srcBuf, unsigned char **jpegBuf,
+   }
+   /* Set the destination buffer to gray so we know whether the decompressor
+      attempted to write to it */
+-  memset(dstBuf, 127, pitch * scaledh);
++  memset(dstBuf, 127, (size_t)pitch * scaledh);
+ 
+   if (doYUV) {
+     int width = doTile ? tilew : scaledw;
+@@ -193,7 +193,7 @@ static int decomp(unsigned char *srcBuf, unsigned char **jpegBuf,
+     double start = getTime();
+ 
+     for (row = 0, dstPtr = dstBuf; row < ntilesh;
+-         row++, dstPtr += pitch * tileh) {
++         row++, dstPtr += (size_t)pitch * tileh) {
+       for (col = 0, dstPtr2 = dstPtr; col < ntilesw;
+            col++, tile++, dstPtr2 += ps * tilew) {
+         int width = doTile ? min(tilew, w - col * tilew) : scaledw;