Missing Authorization Affecting xen-devel package, versions <4.10.4_20-3.47.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (20th percentile)

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  • Snyk IDSNYK-SLES150-XENDEVEL-2696222
  • published14 Apr 2022
  • disclosed19 Nov 2020

Introduced: 19 Nov 2020

CVE-2020-28368  (opens in a new tab)
CWE-862  (opens in a new tab)

How to fix?

Upgrade SLES:15.0 xen-devel to version 4.10.4_20-3.47.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xen-devel package and not the xen-devel package as distributed by SLES. See How to fix? for SLES:15.0 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.

CVSS Scores

version 3.1