CVE-2020-0548
Published: 27 January 2020
Cleanup errors in 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, partial data values previously read from a vector register on a physical core may be propagated into unused portions of the store buffer. A local attacker could possible use this to expose sensitive information.
Notes
| Author | Note |
|---|---|
| tyhicks | This issue only affects Intel processors |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
intel-microcode Launchpad, Ubuntu, Debian |
focal |
Released
(3.20200609.0ubuntu0.20.04.0)
|
| bionic |
Released
(3.20200609.0ubuntu0.18.04.0)
|
|
| disco |
Ignored
(end of life)
|
|
| eoan |
Released
(3.20200609.0ubuntu0.19.10.0)
|
|
| groovy |
Released
(3.20200609.0ubuntu0.20.04.0)
|
|
| trusty |
Released
(3.20200609.0ubuntu0.14.04.0)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| upstream |
Needed
|
|
| xenial |
Released
(3.20200609.0ubuntu0.16.04.0)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-0548
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00329.html
- https://software.intel.com/security-software-guidance/software-guidance/vector-register-sampling
- https://ubuntu.com/security/notices/USN-4385-1
- NVD
- Launchpad
- Debian