Description
arch/x86/kernel/paravirt.c in the Linux kernel before 4.18.1 mishandles certain indirect calls, which makes it easier for attackers to conduct Spectre-v2 attacks against paravirtual guests.
References (18)
Core 18
Core References
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3776-1/
Third Party Advisory x_refsource_misc
https://twitter.com/grsecurity/status/1029324426142199808
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3776-2/
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3777-1/
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3775-1/
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html
Mitigation, Patch, Third Party Advisory x_refsource_misc
https://github.com/torvalds/linux/commit/5800dc5c19f34e6e03b5adab1282535cb102fafd
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2018/dsa-4308
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3775-2/
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/105120
Release Notes, Vendor Advisory x_refsource_misc
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.1
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1041601
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3777-2/
Mitigation, Patch, Vendor Advisory x_refsource_misc
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5800dc5c19f34e6e03b5adab1282535cb102fafd
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3777-3/
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00043.html
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2019:2043
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2019:2029
Scores
CVSS v3
5.5
EPSS
0.0003
EPSS Percentile
10.4%
Attack Vector
LOCAL
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Details
CWE
CWE-200
Status
published
Products (7)
canonical/ubuntu_linux
12.04
canonical/ubuntu_linux
14.04
canonical/ubuntu_linux
16.04
canonical/ubuntu_linux
18.04
debian/debian_linux
8.0
debian/debian_linux
9.0
linux/linux_kernel
< 4.18.1
Published
Aug 20, 2018
Tracked Since
Feb 18, 2026