The remote host is affected by the vulnerability described in GLSA-202210-30 (X.Org X server, XWayland: Multiple Vulnerabilities)
A flaw was found in the Xorg-x11-server. An out-of-bounds access issue can occur in the ProcXkbSetGeometry function due to improper validation of the request length. (CVE-2022-2319)
A flaw was found in the Xorg-x11-server. The specific flaw exists within the handling of ProcXkbSetDeviceInfo requests. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. This flaw allows an attacker to escalate privileges and execute arbitrary code in the context of root. (CVE-2022-2320)
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 80900
#
# (C) Tenable, Inc.
#
# @NOAGENT@
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 202210-30.
#
# The advisory text is Copyright (C) 2001-2021 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#
include('compat.inc');
if (description)
{
script_id(166710);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/06");
script_cve_id("CVE-2022-2319", "CVE-2022-2320");
script_name(english:"GLSA-202210-30 : X.Org X server, XWayland: Multiple Vulnerabilities");
script_set_attribute(attribute:"synopsis", value:
"");
script_set_attribute(attribute:"description", value:
"The remote host is affected by the vulnerability described in GLSA-202210-30 (X.Org X server, XWayland: Multiple
Vulnerabilities)
- A flaw was found in the Xorg-x11-server. An out-of-bounds access issue can occur in the ProcXkbSetGeometry
function due to improper validation of the request length. (CVE-2022-2319)
- A flaw was found in the Xorg-x11-server. The specific flaw exists within the handling of
ProcXkbSetDeviceInfo requests. The issue results from the lack of proper validation of user-supplied data,
which can result in a memory access past the end of an allocated buffer. This flaw allows an attacker to
escalate privileges and execute arbitrary code in the context of root. (CVE-2022-2320)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://security.gentoo.org/glsa/202210-30");
script_set_attribute(attribute:"see_also", value:"https://bugs.gentoo.org/show_bug.cgi?id=857780");
script_set_attribute(attribute:"solution", value:
"All X.Org X server users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose >=x11-base/xorg-server-21.1.4
All XWayland users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose >=x11-base/xwayland-22.1.3");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-2022-2320");
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:"2022/08/04");
script_set_attribute(attribute:"patch_publication_date", value:"2022/10/31");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/10/31");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:xorg-server");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:xwayland");
script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Gentoo 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/Gentoo/release", "Host/Gentoo/qpkg-list");
exit(0);
}
include('qpkg.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item('Host/Gentoo/release')) audit(AUDIT_OS_NOT, 'Gentoo');
if (!get_kb_item('Host/Gentoo/qpkg-list')) audit(AUDIT_PACKAGE_LIST_MISSING);
var flag = 0;
var packages = [
{
'name' : 'x11-base/xorg-server',
'unaffected' : make_list("ge 21.1.4", "lt 21.0.0"),
'vulnerable' : make_list("lt 21.1.4")
},
{
'name' : 'x11-base/xwayland',
'unaffected' : make_list("ge 22.1.3", "lt 22.0.0"),
'vulnerable' : make_list("lt 22.1.3")
}
];
foreach package( packages ) {
if (isnull(package['unaffected'])) package['unaffected'] = make_list();
if (isnull(package['vulnerable'])) package['vulnerable'] = make_list();
if (qpkg_check(package: package['name'] , unaffected: package['unaffected'], vulnerable: package['vulnerable'])) flag++;
}
# This plugin has a different number of unaffected and vulnerable versions for
# one or more packages. To ensure proper detection, a separate line should be
# used for each fixed/vulnerable version pair.
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : qpkg_report_get()
);
exit(0);
}
else
{
qpkg_tests = list_uniq(qpkg_tests);
var tested = qpkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'X.Org X server / XWayland');
}