Double Free Affecting yggdrasil-devel package, versions <0:0.4.9.2-1.el10_2


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

Social Trends
EPSS
0.81% (53rd percentile)

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  • Snyk IDSNYK-ORACLE10-YGGDRASILDEVEL-18135473
  • published21 Jul 2026
  • disclosed7 May 2026

Introduced: 7 May 2026

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

How to fix?

Upgrade Oracle:10 yggdrasil-devel to version 0:0.4.9.2-1.el10_2 or higher.
This issue was patched in ELSA-2026-39573.

NVD Description

Note: Versions mentioned in the description apply only to the upstream yggdrasil-devel package and not the yggdrasil-devel package as distributed by Oracle. See How to fix? for Oracle:10 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