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FreeBSD : LibreSSL -- TLS verification vulnerability (24673ed7-2bf3-11e7-b291-b499baebfeaf)

medium Nessus Plugin ID 99749

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Synopsis

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

Description

Jakub Jirutka reports :

LibreSSL 2.5.1 to 2.5.3 lacks TLS certificate verification if SSL_get_verify_result is relied upon for a later check of a verification result, in a use case where a user-provided verification callback returns 1, as demonstrated by acceptance of invalid certificates by nginx.

Solution

Update the affected packages.

See Also

https://seclists.org/oss-sec/2017/q2/145

https://github.com/libressl-portable/portable/issues/307

http://www.nessus.org/u?94c5f1d7

Plugin Details

Severity: Medium

ID: 99749

File Name: freebsd_pkg_24673ed72bf311e7b291b499baebfeaf.nasl

Version: 3.7

Type: local

Published: 5/1/2017

Updated: 12/23/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 2.6

Temporal Score: 1.9

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

CVSS Score Source: CVE-2017-8301

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:libressl, p-cpe:/a:freebsd:freebsd:libressl-devel, 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: 4/28/2017

Vulnerability Publication Date: 4/27/2017

Reference Information

CVE: CVE-2017-8301