Information Exposure Affecting xen package, versions <4.14.0-r2
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Test your applications- Snyk ID SNYK-ALPINE320-XEN-7012487
- published 23 May 2024
- disclosed 10 Nov 2020
Introduced: 10 Nov 2020
CVE-2020-28368 Open this link in a new tabHow to fix?
Upgrade Alpine:3.20 xen to version 4.14.0-r2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream xen package and not the xen package as distributed by Alpine.
See How to fix? for Alpine:3.20 relevant fixed versions and status.
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.
References
- http://xenbits.xen.org/xsa/advisory-351.html
- https://www.debian.org/security/2020/dsa-4804
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5J66QUUHXH2RR4CNCKQRGVXVSOUFRPDA/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XV23EZIMNLJN4YXRRXLQV2ALW6ZEALXV/
- https://platypusattack.com
- https://www.zdnet.com/article/new-platypus-attack-can-steal-data-from-intel-cpus/
- https://xenbits.xen.org/xsa/advisory-351.html
- http://www.openwall.com/lists/oss-security/2020/11/26/1
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5J66QUUHXH2RR4CNCKQRGVXVSOUFRPDA/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XV23EZIMNLJN4YXRRXLQV2ALW6ZEALXV/