Vulnerability · Published Nov 10, 2020 · Assigned by mitre
CVE-2020-28368
Medium 4.4
In plain English
A medium-severity security flaw in the xen package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)4.4Medium
Exploit odds (30 days)0.4%top 65.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Xen through 4.14.x allows guest OS administrators to obtain sensitive information (such as AES keys from outside the guest) via a side-channel attack on a power/energy monitoring interface, aka a "Platypus" attack. NOTE: there is only one logically independent fix: to change the access control for each such interface in Xen.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | xen | 4.14.0-r2 | ALPINE-CVE-2020-28368 |
| Alpine:v3.21 | xen | 4.14.0-r2 | ALPINE-CVE-2020-28368 |
| Alpine:v3.22 | xen | 4.14.0-r2 | ALPINE-CVE-2020-28368 |
| Alpine:v3.23 | xen | 4.14.0-r2 | ALPINE-CVE-2020-28368 |
| Alpine:v3.24 | xen | 4.14.0-r2 | ALPINE-CVE-2020-28368 |
| Debian:12 | xen | 4.14.0+80-gd101b417b7-1 | DEBIAN-CVE-2020-28368 |
| Debian:13 | xen | 4.14.0+80-gd101b417b7-1 | DEBIAN-CVE-2020-28368 |
| Debian:14 | xen | 4.14.0+80-gd101b417b7-1 | DEBIAN-CVE-2020-28368 |
Affected products (as reported)
References
- https://xenbits.xen.org/xsa/advisory-351.html x_refsource_MISC
- https://platypusattack.com x_refsource_MISC
- https://www.zdnet.com/article/new-platypus-attack-can-steal-data-from-intel-cpus/ x_refsource_MISC
- http://xenbits.xen.org/xsa/advisory-351.html x_refsource_CONFIRM
- FEDORA-2020-2684e0fadd vendor-advisory, x_refsource_FEDORA
- [oss-security] 20201126 Xen Security Advisory 351 v2 (CVE-2020-28368) - Information leak via power sidechannel mailing-list, x_refsource_MLIST
- FEDORA-2020-d71fa5f0b9 vendor-advisory, x_refsource_FEDORA
- DSA-4804 vendor-advisory, x_refsource_DEBIAN