DOS / potential heap overwrite in qtdemux using zlib decompression. Integer overflow in qtdemux element in qtdemux_inflate function which causes a segfault, or could cause a heap overwrite, depending on libc and OS. Depending on the libc used, and the underlying OS capabilities, it could be just a segfault or a heap overwrite.
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
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://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1225 | issue tracking patch exploit third party advisory |
| https://lists.debian.org/debian-lts-announce/2022/08/msg00001.html | third party advisory mailing list |
| https://www.debian.org/security/2022/dsa-5204 | third party advisory vendor advisory |