A vulnerability in the ARJ archive parsing module in Clam AntiVirus (ClamAV) Software versions 0.102.2 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to a heap buffer overflow read. An attacker could exploit this vulnerability by sending a crafted ARJ file to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process crash, resulting in a denial of service condition.
https://usn.ubuntu.com/4435-2/
https://usn.ubuntu.com/4435-1/
https://usn.ubuntu.com/4370-2/
https://usn.ubuntu.com/4370-1/
https://security.gentoo.org/glsa/202007-23
https://lists.debian.org/debian-lts-announce/2020/08/msg00010.html
https://lists.debian.org/debian-lts-announce/2020/05/msg00018.html
https://blog.clamav.net/2020/05/clamav-01023-security-patch-released.html