Out-of-bounds Read Affecting qemu-kvm-common package, versions <10:1.5.3-156.24.amzn1


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.09% (39th percentile)

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  • Snyk IDSNYK-AMZN201803-QEMUKVMCOMMON-1724452
  • published27 Sept 2021
  • disclosed31 Aug 2020

Introduced: 31 Aug 2020

CVE-2020-14364  (opens in a new tab)
CWE-125  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 qemu-kvm-common to version 10:1.5.3-156.24.amzn1 or higher.
This issue was patched in ALAS-2020-1449.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu-kvm-common package and not the qemu-kvm-common package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

An out-of-bounds read/write access flaw was found in the USB emulator of the QEMU in versions before 5.2.0. This issue occurs while processing USB packets from a guest when USBDevice 'setup_len' exceeds its 'data_buf[4096]' in the do_token_in, do_token_out routines. This flaw allows a guest user to crash the QEMU process, resulting in a denial of service, or the potential execution of arbitrary code with the privileges of the QEMU process on the host.

CVSS Scores

version 3.1