Reachable Assertion Affecting qemu-guest-agent package, versions <10:3.1.0-8.amzn2.0.8


Severity

Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-AMZN2-QEMUGUESTAGENT-1700687
  • published27 Sept 2021
  • disclosed2 Dec 2020

Introduced: 2 Dec 2020

CVE-2020-25723  (opens in a new tab)
CWE-617  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 qemu-guest-agent to version 10:3.1.0-8.amzn2.0.8 or higher.
This issue was patched in ALAS2-2021-1671.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu-guest-agent package and not the qemu-guest-agent package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

A reachable assertion issue was found in the USB EHCI emulation code of QEMU. It could occur while processing USB requests due to missing handling of DMA memory map failure. A malicious privileged user within the guest may abuse this flaw to send bogus USB requests and crash the QEMU process on the host, resulting in a denial of service.

CVSS Scores

version 3.1