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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;
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