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FreeBSD : rustls-ffi -- Read after free (4538886a-d1d9-11f1-8135-8447094a420f)

high Nessus Plugin ID 372883

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 4538886a-d1d9-11f1-8135-8447094a420f advisory.

 The RusTLS project reports:
 functions retained a reference to the caller's server_name buffer after returning, rather than copying it.
 The API documentation did not require the buffer to outlive the call and as a result if the caller freed or reused the buffer, later TLS processing read freed memory. [GHSA-rc3f-4j82-cmrg]

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.

See Also

https://github.com/rustls/rustls-ffi/releases/tag/v0.15.7

http://www.nessus.org/u?8a81f3a2

Plugin Details

Severity: High

ID: 372883

File Name: freebsd_pkg_4538886ad1d911f181358447094a420f.nasl

Version: 1.1

Type: Local

Published: 10/28/2026

Updated: 10/28/2026

Supported Sensors: Nessus

Vulnerability Information

CPE: cpe:/o:freebsd:freebsd, p-cpe:/a:freebsd:freebsd:rustls-ffi

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/27/2026

Vulnerability Publication Date: 10/26/2026