Published: 27 January 2020

Cleanup errors in some data cache evictions for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

From the Ubuntu security team

It was discovered that on some Intel processors, data from the most recently evicted modified L1 data cache (L1D) line may be propagated into an unused (invalid) L1D fill buffer. A local attacker could possibly use this to expose sensitive information.



CVSS 3 base score: 5.5


Package Release Status
Launchpad, Ubuntu, Debian
Upstream Needed

Ubuntu 20.10 (Groovy Gorilla)
Released (3.20200609.0ubuntu0.20.04.0)
Ubuntu 20.04 LTS (Focal Fossa)
Released (3.20200609.0ubuntu0.20.04.0)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (3.20200609.0ubuntu0.18.04.0)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (3.20200609.0ubuntu0.16.04.0)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (3.20200609.0ubuntu0.14.04.0)