Ubuntu 18.04 LTS : Linux kernel vulnerability (USN-5591-3)

The remote Ubuntu 18.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-5591-3 advisory. It was discovered that the virtual terminal driver in the Linux kernel did not properly handle VGA console font changes, leading to an out-of-bounds write. A loca...

CVE-2021-33656

When setting font with malicous data by ioctl cmd PIOFONT,kernel will write memory out of bounds...