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CVE-2021-4206 — HIGH severity vulnerability | Release Alert

CVE-2021-4206

8.2

HIGHCVSS v3

Published

April 29, 2022

CVSS v2

4.6 MEDIUM

Affected

5 projects

Assigned by

Red Hat

Severity scale

010

Description

A flaw was found in the QXL display device emulation in QEMU. An integer overflow in the cursor_alloc() function can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. This flaw allows a malicious privileged guest user to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process.

qemu-project/qemu

GitLabQEMU main repository: Please see https://www.qemu.org/docs/master/devel/submitting-a-patch.html for how to submit changes to QEMU. Pull Requests are ignored. Please only use release tarballs from the QEMU website. http://www.qemu.org

< 7.0.0NVD

qemu/qemu

GitHubOfficial QEMU mirror. Please see https://www.qemu.org/contribute/ for how to submit changes to QEMU. Pull Requests are disabled. Please only use release tarballs from the QEMU website.

< 7.0.0NVD

More on this CVE

NVD↗GitHub Advisory↗

bonzini/qemu

GitHubMy QEMU tree

< 7.0.0NVD

birkelund/qemu

< 7.0.0NVD

thuth/qemu

GitLabQEMU mirror for GitLab CI: Please see http://wiki.qemu.org/Contribute/SubmitAPatch for how to submit changes to QEMU. Pull Requests are ignored. Please only use release tarballs from the QEMU website. http://www.qemu.org

< 7.0.0NVD