What is CVE-2018-9838?

CVE-2018-9838 is a critical-severity vulnerability in Ocaml, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2018-04-06.

How severe is CVE-2018-9838?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Integer overflow in Ocaml

CVE-2018-9838

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.

Vulnerability class: Integer Overflow

EPSS: 0.042 (90.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Ocaml — versions 4.06.0
N/a — versions n/a

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

cve@mitre.org (x_refsource_MISC, Issue Tracking, Vendor Advisory)
cve@mitre.org (vendor-advisory, x_refsource_GENTOO)

Frequently asked questions

What is CVE-2018-9838?: CVE-2018-9838 is a critical-severity vulnerability in Ocaml, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2018-04-06.
How severe is CVE-2018-9838?: Critical severity. CVSS v3 base score is 9.8 out of 10.