Out-of-bounds Write Affecting qemu package, versions <1:6.1+dfsg-2


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-DEBIAN13-QEMU-5693975
  • 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?

Upgrade Debian:13 qemu to version 1:6.1+dfsg-2 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.

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 Scores

version 3.1