Out-of-bounds Write Affecting nss_hesiod package, versions <0:2.28-251.0.4.el8_10.38


Severity

Recommended
medium

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.5% (40th percentile)

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  • Snyk IDSNYK-ORACLE8-NSSHESIOD-17984342
  • published15 Jul 2026
  • disclosed20 Apr 2026

Introduced: 20 Apr 2026

CVE-2026-5450  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Oracle:8 nss_hesiod to version 0:2.28-251.0.4.el8_10.38 or higher.
This issue was patched in ELSA-2026-33126.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nss_hesiod package and not the nss_hesiod package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

Calling the scanf family of functions with a %mc (malloc'd character match) in the GNU C Library version 2.7 to version 2.43 with a format width specifier with an explicit width greater than 1024 could result in a one byte heap buffer overflow.

CVSS Base Scores

version 3.1