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FreeBSD : Ruby -- Buffer overrun in String-to-Float conversion (06ed6a49-bad4-11ec-9cfe-0800270512f4)

high Nessus Plugin ID 159694

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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 06ed6a49-bad4-11ec-9cfe-0800270512f4 advisory.

 - piao reports: Due to a bug in an internal function that converts a String to a Float, some convertion methods like Kernel#Float and String#to_f could cause buffer over-read.
 A typical consequence is a process termination due to segmentation fault, but in a limited circumstances, it may be exploitable for illegal memory read. (CVE-2022-28739)

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

http://www.nessus.org/u?64fea386

http://www.nessus.org/u?ac8afa29

Plugin Details

Severity: High

ID: 159694

File Name: freebsd_pkg_06ed6a49bad411ec9cfe0800270512f4.nasl

Version: 1.4

Type: local

Published: 4/13/2022

Updated: 11/6/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

CVSS Score Source: CVE-2022-28739

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:ruby31, p-cpe:/a:freebsd:freebsd:ruby27, cpe:/o:freebsd:freebsd, p-cpe:/a:freebsd:freebsd:ruby32, p-cpe:/a:freebsd:freebsd:ruby30, p-cpe:/a:freebsd:freebsd:ruby

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-2022-28739