An invalid memory address dereference was discovered in the canUnpack function in p_mach.cpp in UPX 3.95 via a crafted Mach-O file.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| https://github.com/upx/upx/issues/314 | third party advisory exploit |
| http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00003.html | mailing list third party advisory vendor advisory |
| http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00007.html | mailing list third party advisory vendor advisory |