A flaw found in function dataWindowForTile() of IlmImf/ImfTiledMisc.cpp. An attacker who is able to submit a crafted file to be processed by OpenEXR could trigger an integer overflow, leading to an out-of-bounds write on the heap. The greatest impact of this flaw is to application availability, with some potential impact to data integrity as well.
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
Link | Tags |
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https://bugzilla.redhat.com/show_bug.cgi?id=1939151 | issue tracking vendor advisory |
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25505 | third party advisory |
https://github.com/AcademySoftwareFoundation/openexr/pull/831 | third party advisory patch |
https://lists.debian.org/debian-lts-announce/2022/12/msg00022.html | third party advisory mailing list |