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-rw-r--r--user/libjpeg-turbo/CVE-2020-13790.patch35
1 files changed, 35 insertions, 0 deletions
diff --git a/user/libjpeg-turbo/CVE-2020-13790.patch b/user/libjpeg-turbo/CVE-2020-13790.patch
new file mode 100644
index 000000000..aaeec0c9c
--- /dev/null
+++ b/user/libjpeg-turbo/CVE-2020-13790.patch
@@ -0,0 +1,35 @@
+From 3de15e0c344d11d4b90f4a47136467053eb2d09a Mon Sep 17 00:00:00 2001
+From: DRC <information@libjpeg-turbo.org>
+Date: Tue, 2 Jun 2020 14:15:37 -0500
+Subject: [PATCH] rdppm.c: Fix buf overrun caused by bad binary PPM
+
+This extends the fix in 1e81b0c3ea26f4ea8f56de05367469333de64a9f to
+include binary PPM files with maximum values < 255, thus preventing a
+malformed binary PPM input file with those specifications from
+triggering an overrun of the rescale array and potentially crashing
+cjpeg, TJBench, or any program that uses the tjLoadImage() function.
+
+Fixes #433
+
+diff --git a/rdppm.c b/rdppm.c
+index 87bc33090..a8507b902 100644
+--- a/rdppm.c
++++ b/rdppm.c
+@@ -5,7 +5,7 @@
+ * Copyright (C) 1991-1997, Thomas G. Lane.
+ * Modified 2009 by Bill Allombert, Guido Vollbeding.
+ * libjpeg-turbo Modifications:
+- * Copyright (C) 2015-2017, D. R. Commander.
++ * Copyright (C) 2015-2017, 2020, D. R. Commander.
+ * For conditions of distribution and use, see the accompanying README.ijg
+ * file.
+ *
+@@ -720,7 +720,7 @@ start_input_ppm(j_compress_ptr cinfo, cjpeg_source_ptr sinfo)
+ /* On 16-bit-int machines we have to be careful of maxval = 65535 */
+ source->rescale = (JSAMPLE *)
+ (*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
+- (size_t)(((long)maxval + 1L) *
++ (size_t)(((long)MAX(maxval, 255) + 1L) *
+ sizeof(JSAMPLE)));
+ half_maxval = maxval / 2;
+ for (val = 0; val <= (long)maxval; val++) {