Integer overflow in OCaml - CVE-2018-9838

 

Integer overflow in OCaml - CVE-2018-9838

Published: May 11, 2018 / Updated: May 14, 2018


Vulnerability identifier: #VU12593
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2018-9838
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: OCaml
Affected software:
OCaml

Detailed vulnerability description

The vulnerability allows a remote attacker to cause DoS condition or execute arbitrary code on the target system.

The weakness exists in the caml_ba_deserialize function in byterun/bigarray.c in the standard library due to integer overflow when marshalled data is accepted from an untrusted source. A remote attacker can cause the service to crash or execute arbitrary code.

Successful exploitation of the vulnerability may result in system compromise.

How to mitigate CVE-2018-9838

Update to version 4.07.0.

Sources