I reviewed http://www.libpng.org/pub/png/spec/1.2/PNG-Chunks.html
and I think you covered all the cases.
I also reviewed the reader and it seems we already check only up to 80
chars there.
I note we assume the same max length of 80 for the language tag for iTxt.
The spec. doesn't specify a limit but I think 80 is more than generous here.
+1
-phil.
On 4/27/20, 9:59 AM, Jayathirth D v wrote:
Hello All,
Please review the following fix for JDK 15:
Bug : https://bugs.openjdk.java.net/browse/JDK-8242557
Webrev : http://cr.openjdk.java.net/~jdv/8242557/webrev.00/
<http://cr.openjdk.java.net/%7Ejdv/8242557/webrev.00/>
Issue : PNG specification restricts length of strings in some chunks
to 79(http://www.libpng.org/pub/png/spec/1.2/PNG-Chunks.html )
excluding null termination. But our writer implementation has no such
check.
Solution : Add checks in different chunks where there must be
restrictions.
Thanks,
Jay
