Integer Overflow or Wraparound Affecting containerd-stress package, versions <0:2.2.4-1.amzn2023.0.1


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.47% (37th percentile)

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  • Snyk IDSNYK-AMZN2023-CONTAINERDSTRESS-17414062
  • published23 Jun 2026
  • disclosed22 May 2026

Introduced: 22 May 2026

CVE-2026-39834  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 containerd-stress to version 0:2.2.4-1.amzn2023.0.1 or higher.
This issue was patched in ALAS2023-2026-1784.

NVD Description

Note: Versions mentioned in the description apply only to the upstream containerd-stress package and not the containerd-stress package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

When writing data larger than 4GB in a single Write call on an SSH channel, an integer overflow in the internal payload size calculation caused the write loop to spin indefinitely, sending empty packets without making progress. The size comparison now uses int64 to prevent truncation.

CVSS Base Scores

version 3.1