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CVE

CWE

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CVE-2021-4206

Published: Apr 29, 2022

Modified: Mar 21, 2025

PUBLISHED

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.

Vendor	Product	Versions
n/a	QEMU	affected `qemu-kvm 7.0.0`

Weaknesses (CWE)

References

https://bugzilla.redhat.com/show_bug.cgi?id=2036998

x_refsource_MISC

https://starlabs.sg/advisories/21-4206/

x_refsource_MISC

vendor-advisory

x_refsource_DEBIAN

vendor-advisory

x_refsource_GENTOO

[debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update

mailing-list

x_refsource_MLIST

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