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For issues CVE-2019-17546 and CVE-2019-14973, the following commits
were merged into the bundled libtiff:
4bb584a35f87af42d6cf09d15e9ce8909a839145 RGBA interface: fix integer
overflow potentially causing write heap buffer overflow, especially on
32 bit builds. Fixes
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16443. Credit to
OSS Fuzz
1b5e3b6a23827c33acf19ad50ce5ce78f12b3773 Fix integer overflow in
_TIFFCheckMalloc() and other implementation-defined behaviour
(CVE-2019-14973)
Fixes: QTBUG-79397
Change-Id: I29257e6dbfbd816224d3dbaefdbe8afecd25f288
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
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