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Debian: CVE-2021-4207: qemu -- security update

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Debian: CVE-2021-4207: qemu -- security update

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:P)
Published
04/29/2022
Created
09/06/2022
Added
09/06/2022
Modified
09/06/2022

Description

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.

Solution(s)

  • debian-upgrade-qemu

References

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