FreeBSD : Ruby -- Double free in Regexp compilation (f22144d7-bad1-11ec-9cfe-0800270512f4)

critical Nessus Plugin ID 159692

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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 f22144d7-bad1-11ec-9cfe-0800270512f4 advisory.

- piao reports: Due to a bug in the Regexp compilation process, creating a Regexp object with a crafted source string could cause the same memory to be freed twice. This is known as a double free vulnerability. Note that, in general, it is considered unsafe to create and use a Regexp object generated from untrusted input. In this case, however, following a comprehensive assessment, we treat this issue as a vulnerability. (CVE-2022-28738)

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: 159692

File Name: freebsd_pkg_f22144d7bad111ec9cfe0800270512f4.nasl

Version: 1.4

Type: local

Family: FreeBSD Local Security Checks

Published: 4/13/2022

Updated: 11/6/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2022-28738

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:ruby, p-cpe:/a:freebsd:freebsd:ruby30, p-cpe:/a:freebsd:freebsd:ruby31, p-cpe:/a:freebsd:freebsd:ruby32, 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: 4/13/2022

Vulnerability Publication Date: 4/12/2022

Reference Information

CVE: CVE-2022-28738

Detections

Analytics