CVE-2018-14678
Published: 28 July 2018
An issue was discovered in the Linux kernel through 4.17.11, as used in Xen through 4.11.x. The xen_failsafe_callback entry point in arch/x86/entry/entry_64.S does not properly maintain RBX, which allows local users to cause a denial of service (uninitialized memory usage and system crash). Within Xen, 64-bit x86 PV Linux guest OS users can trigger a guest OS crash or possibly gain privileges.
From the Ubuntu security team
M. Vefa Bicakci and Andy Lutomirski discovered that the kernel did not properly set up all arguments to an error handler callback used when running as a paravirtualized guest. An unprivileged attacker in a paravirtualized guest VM could use this to cause a denial of service (guest VM crash).
Priority
Medium
CVSS 3 base score: 7.8
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.18~rc8)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-47.50)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(4.2.0-16.19)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Not vulnerable
(3.11.0-12.19)
|
|
|
Patches: Introduced by 3ac6d8c787b835b997eb23e43e09aa0895ef7d58 Fixed by b3681dd548d06deb2e1573890829dff4b15abf46 |
||
|
linux-aws Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.18~rc8)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1035.37)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(4.4.0-1001.10)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Not vulnerable
(4.4.0-1002.2)
|
|
|
linux-aws-hwe Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.18~rc8)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.15.0-1035.37~16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-azure Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.18~rc8)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.18.0-1011.11~18.04.1)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.15.0-1041.45)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Released
(4.15.0-1041.45~14.04.1)
|
|
|
linux-azure-edge Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.18~rc8)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.18.0-1011.11~18.04.1)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.15.0-1041.45)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-euclid Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.18~rc8)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(4.4.0-9019.20)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-flo Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.18~rc8)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Ignored
(abandoned)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-gcp Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.18~rc8)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1029.31)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.15.0-1029.31~16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-gcp-edge Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.18~rc8)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(4.18.0-1004.5~18.04.1)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-gke Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.18~rc8)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Ignored
(end-of-life)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.18~rc8)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Ignored
(end-of-life)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-grouper Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.18~rc8)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-hwe Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.18~rc8)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(4.18.0-13.14~18.04.1)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.15.0-47.50~16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.18~rc8)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(5.0.0-15.16~18.04.1)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.15.0-47.50~16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-kvm Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.18~rc8)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1031.31)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(4.4.0-1004.9)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.18~rc8)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.18~rc8)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [end-of-life])
|
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.18~rc8)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [end-of-life])
|
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.18~rc8)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [end-of-life])
|
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.18~rc8)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Not vulnerable
(4.4.0-13.29~14.04.1)
|
|
|
linux-maguro Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.18~rc8)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-mako Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.18~rc8)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Ignored
(abandoned)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-manta Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.18~rc8)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-oem Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.18~rc8)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1035.40)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-oracle Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.18~rc8)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1010.12)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.15.0-1010.12~16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.18~rc8)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1033.35)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(4.2.0-1013.19)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.18~rc8)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(4.4.0-1077.82)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(4.4.0-1012.12)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|