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 (6)
Core 6
Core References
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3903-2/
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16880
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/106735
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3903-1/
Third Party Advisory x_refsource_confirm
https://support.f5.com/csp/article/K03593314
Mailing List, Third Party Advisory vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00037.html
Scores
CVSS v3
7.0
EPSS
0.0010
EPSS Percentile
26.9%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-787
Status
published
Products (3)
canonical/ubuntu_linux
18.04
canonical/ubuntu_linux
18.10
linux/linux_kernel
4.16 - 4.19.20
Published
Jan 29, 2019
Tracked Since
Feb 18, 2026