<p>Upgrade <code>Debian:10</code> <code>qemu</code> to version 1:3.1+dfsg-8+deb10u9 or higher.</p>

Buffer Overflow Affecting qemu package, versions <1:3.1+dfsg-8+deb10u9

Snyk CVSS

Attack Complexity Low

Privileges Required High

Scope Changed

Confidentiality High

Integrity High

Availability High

Threat Intelligence

EPSS 0.07% (30^th percentile)

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Snyk ID SNYK-DEBIAN10-QEMU-2440528
published 3 Apr 2022
disclosed 29 Apr 2022

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Introduced: 3 Apr 2022

CVE-2021-4207 Open this link in a new tab CWE-120 Open this link in a new tab CWE-362 Open this link in a new tab

How to fix?

Upgrade Debian:10 qemu to version 1:3.1+dfsg-8+deb10u9 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:10 relevant fixed versions and status.

A flaw was found in the QXL display device emulation in QEMU. A double fetch of guest controlled values cursor->header.width and cursor->header.height can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. A malicious privileged guest user could use this flaw to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process.