A memory corruption vulnerability in Objective Open CBOR Run-time (oocborrt) in versions before 2020-08-12 could allow an attacker to execute code via crafted Concise Binary Object Representation (CBOR) input to the cbor2json decoder. An uncaught error while decoding CBOR Major Type 3 text strings leads to the use of an attacker-controllable uninitialized stack value. This can be used to modify memory, causing a crash or potentially exploitable heap corruption.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-24753
Reference (s):
- https://github.com/objsys/oocborrt/commit/539851c66778f68a244633985f6f8d0df94ea3b3
- https://warcollar.com/cve-2020-24753.html