Double Free Affecting container-tools:rhel8/toolbox-tests package, versions <0:0.0.99.5.1-1.module_el8.10.0+4120+03ad4b47


Severity

Recommended
0.0
high
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.81% (53rd percentile)

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  • Snyk IDSNYK-ALMALINUX8-CONTAINERTOOLS-17999432
  • published17 Jul 2026
  • disclosed14 Jul 2026

Introduced: 14 Jul 2026

CVE-2026-33811  (opens in a new tab)
CWE-415  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 container-tools:rhel8/toolbox-tests to version 0:0.0.99.5.1-1.module_el8.10.0+4120+03ad4b47 or higher.
This issue was patched in ALSA-2026:38504.

NVD Description

Note: Versions mentioned in the description apply only to the upstream container-tools:rhel8/toolbox-tests package and not the container-tools:rhel8/toolbox-tests package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash.

References

CVSS Base Scores

version 3.1