4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.9 High
AI Score
Confidence
High
0.004 Low
EPSS
Percentile
73.3%
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.
Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable, Inc.
#
# @NOAGENT@
#
# The descriptive text and package checks in this plugin were
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2021 Jacques Vidrine and contributors
#
# Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
# HTML, PDF, PostScript, RTF and so forth) with or without modification,
# are permitted provided that the following conditions are met:
# 1. Redistributions of source code (VuXML) must retain the above
# copyright notice, this list of conditions and the following
# disclaimer as the first lines of this file unmodified.
# 2. Redistributions in compiled form (transformed to other DTDs,
# published online in any format, converted to PDF, PostScript,
# RTF and other formats) must reproduce the above copyright
# notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
#
# THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(159694);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/06");
script_cve_id("CVE-2022-28739");
script_name(english:"FreeBSD : Ruby -- Buffer overrun in String-to-Float conversion (06ed6a49-bad4-11ec-9cfe-0800270512f4)");
script_set_attribute(attribute:"synopsis", value:
"The remote FreeBSD host is missing one or more security-related updates.");
script_set_attribute(attribute:"description", value:
"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.");
# https://www.ruby-lang.org/en/news/2022/04/12/buffer-overrun-in-string-to-float-cve-2022-28739/
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?64fea386");
# https://vuxml.freebsd.org/freebsd/06ed6a49-bad4-11ec-9cfe-0800270512f4.html
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ac8afa29");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-28739");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2022/04/12");
script_set_attribute(attribute:"patch_publication_date", value:"2022/04/13");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/04/13");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:ruby");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:ruby27");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:ruby30");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:ruby31");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:ruby32");
script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"FreeBSD Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");
exit(0);
}
include("freebsd_package.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);
var flag = 0;
var packages = [
'ruby27>=2.7.0,1<2.7.10,1',
'ruby30>=3.0.0,1<3.0.4,1',
'ruby31>=3.1.0,1<3.1.2,1',
'ruby32>=3.2.0.p1,1<3.2.0.p1_1,1',
'ruby>=2.7.0,1<2.7.6,1',
'ruby>=3.0.0,1<3.0.4,1',
'ruby>=3.1.0,1<3.1.2,1',
'ruby>=3.2.0.p1,1<3.2.0.p1_1,1'
];
foreach var package( packages ) {
if (pkg_test(save_report:TRUE, pkg: package)) flag++;
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : pkg_report_get()
);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
Vendor | Product | Version | CPE |
---|---|---|---|
freebsd | freebsd | ruby | p-cpe:/a:freebsd:freebsd:ruby |
freebsd | freebsd | ruby27 | p-cpe:/a:freebsd:freebsd:ruby27 |
freebsd | freebsd | ruby30 | p-cpe:/a:freebsd:freebsd:ruby30 |
freebsd | freebsd | ruby31 | p-cpe:/a:freebsd:freebsd:ruby31 |
freebsd | freebsd | ruby32 | p-cpe:/a:freebsd:freebsd:ruby32 |
freebsd | freebsd | cpe:/o:freebsd:freebsd |
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.9 High
AI Score
Confidence
High
0.004 Low
EPSS
Percentile
73.3%