Integer Overflow or Wraparound Affecting buildah package, versions <1.35.5-150500.3.62.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.47% (37th percentile)

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  • Snyk IDSNYK-SLES157-BUILDAH-17816536
  • published4 Jul 2026
  • disclosed2 Jul 2026

Introduced: 2 Jul 2026

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

How to fix?

Upgrade SLES:15.7 buildah to version 1.35.5-150500.3.62.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream buildah package and not the buildah package as distributed by SLES. See How to fix? for SLES:15.7 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