CVE-2018-16880

MEDIUM

Description

A flaw was found in the Linux kernel's handle_rx() function in the [vhost_net] driver. A malicious virtual guest, under specific conditions, can trigger an out-of-bounds write in a kmalloc-8 slab on a virtual host which may lead to a kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out. Versions from v4.16 and newer are vulnerable.

References

http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00037.html

http://www.securityfocus.com/bid/106735

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16880

https://support.f5.com/csp/article/K03593314

https://usn.ubuntu.com/3903-1/

https://usn.ubuntu.com/3903-2/

Details

Source: MITRE

Published: 2019-01-29

Updated: 2019-05-16

Type: CWE-787

Risk Information

CVSS v2.0

Base Score: 6.9

Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 3.4

Severity: MEDIUM

CVSS v3.0

Base Score: 7

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

Impact Score: 5.9

Exploitability Score: 1

Severity: HIGH