Out-of-bounds Read Affecting ocaml-labltk package, versions *


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.24% (16th percentile)

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  • Snyk IDSNYK-RHEL6-OCAMLLABLTK-15543938
  • published14 Mar 2026
  • disclosed27 Feb 2026

Introduced: 27 Feb 2026

CVE-2026-28364  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:6 ocaml-labltk.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ocaml-labltk package and not the ocaml-labltk package as distributed by RHEL. See How to fix? for RHEL:6 relevant fixed versions and status.

In OCaml before 4.14.3 and 5.x before 5.4.1, a buffer over-read in Marshal deserialization (runtime/intern.c) enables remote code execution through a multi-phase attack chain. The vulnerability stems from missing bounds validation in the readblock() function, which performs unbounded memcpy() operations using attacker-controlled lengths from crafted Marshal data.

CVSS Base Scores

version 3.1