CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
The remote Debian 11 host has a package installed that is affected by a vulnerability as referenced in the dla-3868 advisory.
------------------------------------------------------------------------- Debian LTS Advisory DLA-3868-1 [email protected] https://www.debian.org/lts/security/ Sean Whitton September 03, 2024 https://wiki.debian.org/LTS
-------------------------------------------------------------------------
Package : ruby-nokogiri Version : 1.11.1+dfsg-2+deb11u1 CVE ID : CVE-2022-24836 Debian Bug : 1009787
A vulnerability was discovered in Nokogiri, an open source XML and HTML library for Ruby. An inefficient regular expression was susceptible to excessive backtracking when attempting to detect encoding in HTML documents. This could lead to denial-of-service.
For Debian 11 bullseye, this problem has been fixed in version 1.11.1+dfsg-2+deb11u1.
We recommend that you upgrade your ruby-nokogiri packages.
For the detailed security status of ruby-nokogiri please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/ruby-nokogiri
Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
signature.asc Description: PGP signature
Tenable has extracted the preceding description block directly from the Debian security 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 80900
#
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dla-3868. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('compat.inc');
if (description)
{
script_id(206453);
script_version("1.1");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/09/03");
script_cve_id("CVE-2022-24836");
script_name(english:"Debian dla-3868 : ruby-nokogiri - security update");
script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security-related update.");
script_set_attribute(attribute:"description", value:
"The remote Debian 11 host has a package installed that is affected by a vulnerability as referenced in the dla-3868
advisory.
-------------------------------------------------------------------------
Debian LTS Advisory DLA-3868-1 [email protected]
https://www.debian.org/lts/security/ Sean Whitton
September 03, 2024 https://wiki.debian.org/LTS
-------------------------------------------------------------------------
Package : ruby-nokogiri
Version : 1.11.1+dfsg-2+deb11u1
CVE ID : CVE-2022-24836
Debian Bug : 1009787
A vulnerability was discovered in Nokogiri, an open source XML and HTML
library for Ruby. An inefficient regular expression was susceptible to
excessive backtracking when attempting to detect encoding in HTML
documents. This could lead to denial-of-service.
For Debian 11 bullseye, this problem has been fixed in version
1.11.1+dfsg-2+deb11u1.
We recommend that you upgrade your ruby-nokogiri packages.
For the detailed security status of ruby-nokogiri please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/ruby-nokogiri
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
Attachment:
signature.asc
Description: PGP signature
Tenable has extracted the preceding description block directly from the Debian security advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
# https://security-tracker.debian.org/tracker/source-package/ruby-nokogiri
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a4325c6e");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-24836");
script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bullseye/ruby-nokogiri");
script_set_attribute(attribute:"solution", value:
"Upgrade the ruby-nokogiri packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
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:N/I:N/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-24836");
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:"2022/04/11");
script_set_attribute(attribute:"patch_publication_date", value:"2024/09/03");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/09/03");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ruby-nokogiri");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:11.0");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Debian Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");
exit(0);
}
include('debian_package.inc');
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);
var debian_release = get_kb_item('Host/Debian/release');
if ( isnull(debian_release) ) audit(AUDIT_OS_NOT, 'Debian');
debian_release = chomp(debian_release);
if (! preg(pattern:"^(11)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 11.0', 'Debian ' + debian_release);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Debian', cpu);
var pkgs = [
{'release': '11.0', 'prefix': 'ruby-nokogiri', 'reference': '1.11.1+dfsg-2+deb11u1'}
];
var flag = 0;
foreach package_array ( pkgs ) {
var _release = NULL;
var prefix = NULL;
var reference = NULL;
if (!empty_or_null(package_array['release'])) _release = package_array['release'];
if (!empty_or_null(package_array['prefix'])) prefix = package_array['prefix'];
if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
if (_release && prefix && reference) {
if (deb_check(release:_release, prefix:prefix, reference:reference)) flag++;
}
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : deb_report_get()
);
exit(0);
}
else
{
var tested = deb_pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'ruby-nokogiri');
}
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High