An issue was discovered in Exempi before 2.4.4. Integer overflow in the Chunk class in XMPFiles/source/FormatSupport/RIFF.cpp allows remote attackers to cause a denial of service (infinite loop) via crafted XMP data in a .avi file.
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 |
|---|---|
| https://lists.debian.org/debian-lts-announce/2018/03/msg00013.html | third party advisory mailing list |
| https://cgit.freedesktop.org/exempi/commit/?id=65a8492832b7335ffabd01f5f64d89dec757c260 | patch |
| https://usn.ubuntu.com/3668-1/ | third party advisory vendor advisory |
| https://bugs.freedesktop.org/show_bug.cgi?id=102151 | issue tracking exploit third party advisory |
| https://access.redhat.com/errata/RHSA-2019:2048 | vendor advisory |