Improper Preservation of Permissions Affecting qemu package, versions <1:5.2+dfsg-9


0.0
low

Snyk CVSS

    Attack Complexity Low

    Threat Intelligence

    EPSS 0.05% (14th percentile)
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NVD
3.3 low
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SUSE
3.3 low
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Red Hat
3.3 low

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  • Snyk ID SNYK-DEBIAN12-QEMU-1558357
  • published 3 Mar 2021
  • disclosed 9 Mar 2021

How to fix?

Upgrade Debian:12 qemu to version 1:5.2+dfsg-9 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu package and not the qemu package as distributed by Debian. See How to fix? for Debian:12 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.