Buffer Overflow Affecting qemu package, versions <1:7.0+dfsg-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.07% (33rd percentile)

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  • Snyk IDSNYK-DEBIAN13-QEMU-5693559
  • published3 Apr 2022
  • disclosed29 Apr 2022

Introduced: 3 Apr 2022

CVE-2021-4206  (opens in a new tab)
CWE-120  (opens in a new tab)
CWE-131  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade Debian:13 qemu to version 1:7.0+dfsg-1 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:13 relevant fixed versions and status.

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.

CVSS Scores

version 3.1