CVE-2020-8832
Published: 05 March 2020
The fix for the Linux kernel in Ubuntu 18.04 LTS for CVE-2019-14615 ("The Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors.") was discovered to be incomplete, meaning that in versions of the kernel before 4.15.0-91.92, an attacker could use this vulnerability to expose sensitive information.
From the Ubuntu security team
Gregory Herrero discovered that the fix for CVE-2019-14615 to address the Linux kernel not properly clearing data structures on context switches for certain Intel graphics processors was incomplete. A local attacker could use this to expose sensitive information.
Priority
Medium
CVSS 3 base score: 5.5
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
Upstream |
Not vulnerable
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-91.92)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Not vulnerable
|
|
| Ubuntu 12.04 ESM (Precise Pangolin) |
Not vulnerable
|
|
|
linux-aws Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1063.67)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Ignored
(was needs-triage ESM criteria)
|
|
| Ubuntu 12.04 ESM (Precise Pangolin) |
Does not exist
|
|
|
linux-aws-5.0 Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Ignored
(was needs-triage now end-of-life)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
| Ubuntu 12.04 ESM (Precise Pangolin) |
Does not exist
|
|
|
linux-aws-hwe Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.15.0-1063.67~16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
| Ubuntu 12.04 ESM (Precise Pangolin) |
Does not exist
|
|
|
linux-azure Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Ignored
(was needs-triage now end-of-life)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.15.0-1075.80)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Released
(4.15.0-1074.79~14.04.1)
|
|
| Ubuntu 12.04 ESM (Precise Pangolin) |
Does not exist
|
|
|
linux-azure-5.3 Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
| Ubuntu 12.04 ESM (Precise Pangolin) |
Does not exist
|
|
|
linux-azure-edge Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Ignored
(was needs-triage now end-of-life)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Ignored
(was needs-triage now end-of-life)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
| Ubuntu 12.04 ESM (Precise Pangolin) |
Does not exist
|
|
|
linux-gcp Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.15.0-1058.62)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
| Ubuntu 12.04 ESM (Precise Pangolin) |
Does not exist
|
|
|
linux-gcp-5.3 Launchpad, Ubuntu, Debian |
Upstream |
Not vulnerable
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
| Ubuntu 12.04 ESM (Precise Pangolin) |
Does not exist
|
|
|
linux-gcp-edge Launchpad, Ubuntu, Debian |
Upstream |
Not vulnerable
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Ignored
(was needs-triage now end-of-life)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
| Ubuntu 12.04 ESM (Precise Pangolin) |
Does not exist
|
|
|
linux-gke-4.15 Launchpad, Ubuntu, Debian |
Upstream |
Not vulnerable
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1055.58)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
| Ubuntu 12.04 ESM (Precise Pangolin) |
Does not exist
|
|
|
linux-gke-5.0 Launchpad, Ubuntu, Debian |
Upstream |
Not vulnerable
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
| Ubuntu 12.04 ESM (Precise Pangolin) |
Does not exist
|
|
|
linux-gke-5.3 Launchpad, Ubuntu, Debian |
Upstream |
Not vulnerable
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
| Ubuntu 12.04 ESM (Precise Pangolin) |
Does not exist
|
|
|
linux-hwe Launchpad, Ubuntu, Debian |
Upstream |
Not vulnerable
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.15.0-91.92~16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
| Ubuntu 12.04 ESM (Precise Pangolin) |
Does not exist
|
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Ignored
(was needs-triage now end-of-life)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Ignored
(was needs-triage now end-of-life)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
| Ubuntu 12.04 ESM (Precise Pangolin) |
Does not exist
|
|
|
linux-kvm Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1056.57)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
| Ubuntu 12.04 ESM (Precise Pangolin) |
Does not exist
|
|
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
Upstream |
Not vulnerable
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| 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
|
|
| Ubuntu 12.04 ESM (Precise Pangolin) |
Not vulnerable
|
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
Upstream |
Not vulnerable
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| 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
|
|
| Ubuntu 12.04 ESM (Precise Pangolin) |
Does not exist
|
|
|
linux-oem Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1076.86)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Ignored
(was needs-triage now end-of-life)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
| Ubuntu 12.04 ESM (Precise Pangolin) |
Does not exist
|
|
|
linux-oem-5.4 Launchpad, Ubuntu, Debian |
Upstream |
Not vulnerable
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
|
|
| 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
|
|
| Ubuntu 12.04 ESM (Precise Pangolin) |
Does not exist
|
|
|
linux-oem-osp1 Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
| Ubuntu 12.04 ESM (Precise Pangolin) |
Does not exist
|
|
|
linux-oracle Launchpad, Ubuntu, Debian |
Upstream |
Not vulnerable
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1035.39)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.15.0-1035.38~16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
| Ubuntu 12.04 ESM (Precise Pangolin) |
Does not exist
|
|
|
linux-oracle-5.0 Launchpad, Ubuntu, Debian |
Upstream |
Not vulnerable
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
| Ubuntu 12.04 ESM (Precise Pangolin) |
Does not exist
|
|
|
linux-oracle-5.3 Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
| Ubuntu 12.04 ESM (Precise Pangolin) |
Does not exist
|
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
Upstream |
Not vulnerable
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(intel only)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
| Ubuntu 12.04 ESM (Precise Pangolin) |
Does not exist
|
|
|
linux-raspi2-5.3 Launchpad, Ubuntu, Debian |
Upstream |
Not vulnerable
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
| Ubuntu 12.04 ESM (Precise Pangolin) |
Does not exist
|
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
Upstream |
Not vulnerable
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
| Ubuntu 12.04 ESM (Precise Pangolin) |
Does not exist
|
Notes
| Author | Note |
|---|---|
| sbeattie | this issue is Ubuntu specific and only affects 4.15 kernels. |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8832
- https://usn.ubuntu.com/usn/usn-4302-1
- NVD
- Launchpad
- Debian