Mikrotik RouterOs before stable 6.47 suffers from a memory corruption vulnerability in the resolver process. By sending a crafted packet, an authenticated remote attacker can cause a Denial of Service.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-20249
Reference (s):
- https://github.com/cq674350529/pocs_slides/blob/master/advisory/MikroTik/CVE-2020-20249/README.md