CVE-2021-4206

2022-04-2916:19:09

CWE-190

redhat

www.cve.org

qxl

qemu

integer overflow

AI Score

8.5

Confidence

High

EPSS

0.001

Percentile

31.0%

JSON

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 Affected

[
  {
    "product": "QEMU",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "qemu-kvm 7.0.0"
      }
    ]
  }
]