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From 6e2dac5f904496d127c92ddc4e56eccfca25c2ee Mon Sep 17 00:00:00 2001
From: Arie Haenel <arie.haenel@jct.ac.il>
Date: Thu, 14 Sep 2023 04:36:58 +0000
Subject: [PATCH] raw2tiff: fix integer overflow and bypass of the check (fixes
#592)
CVE: CVE-2023-41175
Upstream-Status: Backport [https://gitlab.com/libtiff/libtiff/-/commit/6e2dac5f904496d127c92ddc4e56eccfca25c2ee]
Signed-off-by: Yogita Urade <yogita.urade@windriver.com>
---
tools/raw2tiff.c | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/tools/raw2tiff.c b/tools/raw2tiff.c
index 4ee59e5..a811077 100644
--- a/tools/raw2tiff.c
+++ b/tools/raw2tiff.c
@@ -101,6 +101,7 @@ int main(int argc, char *argv[])
int fd;
char *outfilename = NULL;
TIFF *out;
+ uint32_t temp_limit_check = 0; /* temp for integer overflow checking*/
uint32_t row, col, band;
int c;
@@ -221,6 +222,33 @@ int main(int argc, char *argv[])
if (guessSize(fd, dtype, hdr_size, nbands, swab, &width, &length) < 0)
return EXIT_FAILURE;
+ /* check for integer overflow in */
+ /* hdr_size + (*width) * (*length) * nbands * depth */
+
+ if ((width == 0) || (length == 0) ){
+ fprintf(stderr, "Too large nbands value specified.\n");
+ return (EXIT_FAILURE);
+ }
+
+ temp_limit_check = nbands * depth;
+
+ if ( !temp_limit_check || length > ( UINT_MAX / temp_limit_check ) ) {
+ fprintf(stderr, "Too large length size specified.\n");
+ return (EXIT_FAILURE);
+ }
+ temp_limit_check = temp_limit_check * length;
+
+ if ( !temp_limit_check || width > ( UINT_MAX / temp_limit_check ) ) {
+ fprintf(stderr, "Too large width size specified.\n");
+ return (EXIT_FAILURE);
+ }
+ temp_limit_check = temp_limit_check * width;
+
+ if ( !temp_limit_check || hdr_size > ( UINT_MAX - temp_limit_check ) ) {
+ fprintf(stderr, "Too large header size specified.\n");
+ return (EXIT_FAILURE);
+ }
+
if (outfilename == NULL)
outfilename = argv[optind + 1];
out = TIFFOpen(outfilename, "w");
--
2.35.5
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