CVE-2018-19407

medium

Description

The vcpu_scan_ioapic function in arch/x86/kvm/x86.c in the Linux kernel through 4.19.2 allows local users to cause a denial of service (NULL pointer dereference and BUG) via crafted system calls that reach a situation where ioapic is uninitialized.

References

https://usn.ubuntu.com/3879-2/

https://usn.ubuntu.com/3879-1/

https://usn.ubuntu.com/3878-2/

https://usn.ubuntu.com/3878-1/

https://usn.ubuntu.com/3872-1/

https://usn.ubuntu.com/3871-5/

https://usn.ubuntu.com/3871-4/

https://usn.ubuntu.com/3871-3/

https://usn.ubuntu.com/3871-1/

https://lkml.org/lkml/2018/11/20/580

https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html

http://www.securityfocus.com/bid/105987

Details

Source: Mitre, NVD

Published: 2018-11-21

Updated: 2019-03-21

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H