FreeBSD : ocaml-opam -- opam install sandbox escape using symlinks (b478ff13-7f6e-11f1-b594-3c7c3fba4204)

critical Nessus Plugin ID 326807

Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the b478ff13-7f6e-11f1-b594-3c7c3fba4204 advisory.

The OCaml Team reports:
Installing files through .install files do not check symlinks resolution of the target path, and so can bypass sandboxing.
Credits:
Reporter: Kate Deplaix Remediation Developer: Nathan Rebours Remediation Reviewer: Raja Boujbel Coordinator: Hannes Mehnert

Tenable has extracted the preceding description block directly from the FreeBSD security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

Plugin Details

Severity: Critical

ID: 326807

File Name: freebsd_pkg_b478ff137f6e11f1b5943c7c3fba4204.nasl

Version: 1.1

Type: Local

Family: FreeBSD Local Security Checks

Published: 7/14/2026

Updated: 7/14/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.71

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2026-57825

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:ocaml-opam, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 7/14/2026

Vulnerability Publication Date: 7/14/2026

Reference Information

CVE: CVE-2026-57825

Detections

Analytics