CVE-2020-0549
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.
Priority
Medium
CVSS 3 base score: 5.5
Status
| Package | Release | Status |
|---|---|---|
|
intel-microcode Launchpad, Ubuntu, Debian |
bionic |
Released
(3.20200609.0ubuntu0.18.04.0)
|
| disco |
Ignored
(reached end-of-life)
|
|
| eoan |
Released
(3.20200609.0ubuntu0.19.10.0)
|
|
| focal |
Released
(3.20200609.0ubuntu0.20.04.0)
|
|
| groovy |
Released
(3.20200609.0ubuntu0.20.04.0)
|
|
| precise |
Does not exist
|
|
| trusty |
Released
(3.20200609.0ubuntu0.14.04.0)
|
|
| upstream |
Needed
|
|
| xenial |
Released
(3.20200609.0ubuntu0.16.04.0)
|
Notes
| Author | Note |
|---|---|
| tyhicks | This issue only affects Intel processors |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-0549
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00329.html
- https://software.intel.com/security-software-guidance/software-guidance/l1d-eviction-sampling
- https://ubuntu.com/security/notices/USN-4385-1
- NVD
- Launchpad
- Debian