CVE-2023-2861 Affecting qemu package, versions <1:8.0.3+dfsg-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.05% (21st percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-QEMU-5747754
  • published30 Jun 2023
  • disclosed6 Dec 2023

Introduced: 30 Jun 2023

CVE-2023-2861  (opens in a new tab)

How to fix?

Upgrade Debian:unstable qemu to version 1:8.0.3+dfsg-1 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:unstable relevant fixed versions and status.

A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU. The 9pfs server did not prohibit opening special files on the host side, potentially allowing a malicious client to escape from the exported 9p tree by creating and opening a device file in the shared folder.

CVSS Base Scores

version 3.1