CVE-2021-3713

2021-08-2518:40:48

CWE-787

redhat

www.cve.org

uas emulation

qemu

out-of-bounds write

AI Score

8.2

Confidence

High

EPSS

Percentile

14.2%

JSON

An out-of-bounds write flaw was found in the UAS (USB Attached SCSI) device emulation of QEMU in versions prior to 6.2.0-rc0. The device uses the guest supplied stream number unchecked, which can lead to out-of-bounds access to the UASDevice->data3 and UASDevice->status3 fields. A malicious guest user could use this flaw to crash QEMU or potentially achieve code execution with the privileges of the QEMU process on the host.

CNA Affected

[
  {
    "product": "QEMU",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "qemu 6.2.0-rc0"
      }
    ]
  }
]