CVE-2018-9838

Severity: critical (CVSS 9.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-04-06 · updated 2026-06-17
Weakness: CWE-190

Description

The caml_ba_deserialize function in byterun/bigarray.c in the standard library in OCaml 4.06.0 has an integer overflow which, in situations where marshalled data is accepted from an untrusted source, allows remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via a crafted object.

Affected products

OCaml: 4.06.0

References

https://caml.inria.fr/mantis/view.php?id=7765
https://security.gentoo.org/glsa/202007-48
https://caml.inria.fr/mantis/view.php?id=7765
https://security.gentoo.org/glsa/202007-48

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