CVE-2018-3620
Published: 14 August 2018
Systems with microprocessors utilizing speculative execution and address translations may allow unauthorized disclosure of information residing in the L1 data cache to an attacker with local user access via a terminal page fault and a side-channel analysis.
From the Ubuntu security team
It was discovered that memory present in the L1 data cache of an Intel CPU core may be exposed to a malicious process that is executing on the CPU core. This vulnerability is also known as L1 Terminal Fault (L1TF). A local attacker could use this to expose sensitive information (memory from the kernel or other processes).
Priority
High
CVSS 3 base score: 5.6
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-32.35)
|
|
|
Patches: Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Fixed by 2f22b4cd45b67b3496f4aa4c7180a1271c6452f6|local-2018-3620-swap Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Fixed by 6b28baca9b1f0d4a42b865da7a05b1c81424bd5c|local-2018-3620-protnone |
||
|
linux-aws Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1019.19)
|
|
|
linux-aws-hwe Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
|
linux-azure Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1021.21)
|
|
|
linux-azure-edge Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1021.21)
|
|
|
linux-euclid Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
|
linux-flo Launchpad, Ubuntu, Debian |
Upstream |
Not vulnerable
(ARM is not affected)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
|
linux-gcp Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1017.18)
|
|
|
linux-gcp-edge Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(4.18.0-1004.5~18.04.1)
|
|
|
linux-gke Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
|
linux-grouper Launchpad, Ubuntu, Debian |
Upstream |
Not vulnerable
(ARM is not affected)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
|
linux-hwe Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(4.18.0-13.14~18.04.1)
|
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(4.18.0-12.13~18.04.1)
|
|
|
linux-kvm Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1019.19)
|
|
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
|
linux-maguro Launchpad, Ubuntu, Debian |
Upstream |
Not vulnerable
(ARM is not affected)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
|
linux-mako Launchpad, Ubuntu, Debian |
Upstream |
Not vulnerable
(ARM is not affected)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
|
linux-manta Launchpad, Ubuntu, Debian |
Upstream |
Not vulnerable
(ARM is not affected)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
|
linux-oem Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1015.18)
|
|
|
linux-oracle Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(4.15.0-1007.9)
|
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
Upstream |
Not vulnerable
(ARM is not affected)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(ARM is not affected)
|
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
Upstream |
Not vulnerable
(ARM is not affected)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
|
|
Notes
| Author | Note |
|---|---|
| tyhicks | The break-fix lines for this CVE are not complete since a large number of patches are required to mitigate this issue. The commit(s) listed are chosen as placeholders for automated CVE triage purposes. |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-3620
- https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/L1TF
- https://ubuntu.com/security/notices/USN-3740-1
- https://ubuntu.com/security/notices/USN-3740-2
- https://ubuntu.com/security/notices/USN-3741-1
- https://ubuntu.com/security/notices/USN-3741-2
- https://ubuntu.com/security/notices/USN-3742-1
- https://ubuntu.com/security/notices/USN-3742-2
- https://ubuntu.com/security/notices/USN-3823-1
- NVD
- Launchpad
- Debian