Improper Preservation of Permissions Affecting qemu-kvm-ui-opengl package, versions *


Severity

Recommended
0.0
low
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.05% (18th percentile)

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  • Snyk IDSNYK-CENTOS9-QEMUKVMUIOPENGL-2879417
  • published1 Nov 2021
  • disclosed1 Mar 2021

Introduced: 1 Mar 2021

CVE-2021-20263  (opens in a new tab)
CWE-281  (opens in a new tab)

How to fix?

There is no fixed version for Centos:9 qemu-kvm-ui-opengl.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu-kvm-ui-opengl package and not the qemu-kvm-ui-opengl package as distributed by Centos. See How to fix? for Centos:9 relevant fixed versions and status.

A flaw was found in the virtio-fs shared file system daemon (virtiofsd) of QEMU. The new 'xattrmap' option may cause the 'security.capability' xattr in the guest to not drop on file write, potentially leading to a modified, privileged executable in the guest. In rare circumstances, this flaw could be used by a malicious user to elevate their privileges within the guest.

CVSS Scores

version 3.1