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Commit 8dba67cb authored by Benjamin Otte's avatar Benjamin Otte
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pixops: Fix oversight for CVE-2015-4491

The n_x variable could be made large enough to overflow, too.

Also included are various testcases for this vulnerability:
- The original exploit (adapted for the testsuite)
- Causing overflow by making both X and Y variables large
- Causing overflow using only the X variable
- Causing overflow using only the Y variable

https://bugzilla.gnome.org/show_bug.cgi?id=752297
parent 0ed6637e
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