Incorrect Calculation of Buffer Size 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% (20th percentile)

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  • Snyk IDSNYK-AMZN2-QEMUGUESTAGENT-1700455
  • published27 Sept 2021
  • disclosed31 Dec 2020

Introduced: 31 Dec 2020

CVE-2020-11947  (opens in a new tab)
CWE-131  (opens in a new tab)
CWE-122  (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.

iscsi_aio_ioctl_cb in block/iscsi.c in QEMU 4.1.0 has a heap-based buffer over-read that may disclose unrelated information from process memory to an attacker.

CVSS Scores

version 3.1