Out-of-bounds Write Affecting qemu package, versions *


Severity

Recommended
low

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.57% (43rd percentile)

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  • Snyk IDSNYK-UBUNTU2104-QEMU-1567395
  • published19 Aug 2021
  • disclosed25 Aug 2021

Introduced: 19 Aug 2021

CVE-2021-3713  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:21.04 qemu.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu package and not the qemu package as distributed by Ubuntu. See How to fix? for Ubuntu:21.04 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1