Out-of-bounds Write Affecting qemu package, versions <6.1.1-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.57% (43rd percentile)

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  • Snyk IDSNYK-ALPINE315-QEMU-2420611
  • published10 Mar 2022
  • disclosed25 Aug 2021

Introduced: 25 Aug 2021

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

How to fix?

Upgrade Alpine:3.15 qemu to version 6.1.1-r0 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 Alpine. See How to fix? for Alpine:3.15 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