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CVE-2021-4206

Published: 4/29/2022 Last updated: 3/21/2025 Reserved: 1/13/2022

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.

CNA assigner: redhat (53f830b8-0a3f-465b-8143-3b8a9948e749) Requested by: n/a

Opam packages affected (2)

conf-qemu-img nbd-tool

Products affected (1)

Product Vendor Version
QEMU n/a Robotics RB2 Platform

References (11)