Gauss100 OLTP database in ManageOne with versions of 6.5.0 have an out-of-bounds read vulnerability due to the insufficient checks of the specific packet length. Attackers can construct invalid packets to attack the active and standby communication channels. Successful exploit of this vulnerability could allow the attacker to crash the database on the standby node.

A buffer overflow flaw was found, in versions from 2.6.34 to 5.2.x, in the way Linux kernel's vhost functionality that translates virtqueue buffers to IOVs, logged the buffer descriptors during migration. A privileged guest user able to pass descriptors with invalid length to the host when migration is underway, could use this flaw to increase their privileges on the host.