9.3 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.1 High
AI Score
Confidence
High
0.014 Low
EPSS
Percentile
86.3%
The remote host is affected by the vulnerability described in GLSA-202003-56 (Xen: Multiple vulnerabilities)
Multiple vulnerabilities have been discovered in Xen. Please review the referenced CVE identifiers for details.
Impact :
A local attacker could potentially gain privileges on the host system or cause a Denial of Service condition.
Workaround :
There is no known workaround at this time.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 202003-56.
#
# The advisory text is Copyright (C) 2001-2022 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(134964);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/27");
script_cve_id(
"CVE-2018-12126",
"CVE-2018-12127",
"CVE-2018-12130",
"CVE-2018-12207",
"CVE-2019-11091",
"CVE-2019-11135",
"CVE-2019-18420",
"CVE-2019-18421",
"CVE-2019-18423",
"CVE-2019-18424",
"CVE-2019-18425",
"CVE-2019-19577",
"CVE-2019-19578",
"CVE-2019-19580",
"CVE-2019-19581",
"CVE-2019-19582",
"CVE-2019-19583"
);
script_xref(name:"GLSA", value:"202003-56");
script_xref(name:"CEA-ID", value:"CEA-2019-0547");
script_xref(name:"CEA-ID", value:"CEA-2019-0324");
script_name(english:"GLSA-202003-56 : Xen: Multiple vulnerabilities (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout)");
script_set_attribute(attribute:"synopsis", value:
"The remote Gentoo host is missing one or more security-related
patches.");
script_set_attribute(attribute:"description", value:
"The remote host is affected by the vulnerability described in GLSA-202003-56
(Xen: Multiple vulnerabilities)
Multiple vulnerabilities have been discovered in Xen. Please review the
referenced CVE identifiers for details.
Impact :
A local attacker could potentially gain privileges on the host system or
cause a Denial of Service condition.
Workaround :
There is no known workaround at this time.");
script_set_attribute(attribute:"see_also", value:"https://security.gentoo.org/glsa/202003-56");
script_set_attribute(attribute:"solution", value:
"All Xen users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=app-emulation/xen-4.12.0-r1'");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:POC/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:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-18425");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"in_the_news", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2019/05/30");
script_set_attribute(attribute:"patch_publication_date", value:"2020/03/25");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/03/27");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:xen");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:xen-tools");
script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Gentoo Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
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);
flag = 0;
if (qpkg_check(package:"app-emulation/xen", unaffected:make_list("ge 4.12.0-r1"), vulnerable:make_list("lt 4.12.0-r1"))) flag++;
if (qpkg_check(package:"app-emulation/xen-tools", unaffected:make_list("ge 4.12.0-r1"), vulnerable:make_list("lt 4.12.0-r1"))) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get());
else security_hole(0);
exit(0);
}
else
{
tested = qpkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "Xen");
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12126
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12127
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12130
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12207
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11091
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11135
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18420
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18421
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18423
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18424
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18425
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19577
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19578
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19580
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19581
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19582
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19583
security.gentoo.org/glsa/202003-56
9.3 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.1 High
AI Score
Confidence
High
0.014 Low
EPSS
Percentile
86.3%