This security bulletin contains one low risk vulnerability.
Exploit availability: NoDescription
The vulnerability allows a local authenticated user to gain access to sensitive information.
In a Linux KVM guest that has PV TLB enabled, a process in the guest kernel may be able to read memory locations from another process in the same guest. This problem is limit to the host running linux kernel 4.10 with a guest running linux kernel 4.16 or later. The problem mainly affects AMD processors but Intel CPUs cannot be ruled out.Mitigation
Install update from vendor's website.Vulnerable software versions
Linux kernel: 4.19 - 5.5.19External links
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.