3.3 Low
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:L/AC:M/Au:N/C:P/I:P/A:N
6.3 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
0.001 Low
EPSS
Percentile
26.8%
The remote SUSE Linux SLED15 / SLES15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2021:2471-1 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.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2021:2471-1. The text itself
# is copyright (C) SUSE.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(152105);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/13");
script_cve_id("CVE-2021-3631");
script_xref(name:"SuSE", value:"SUSE-SU-2021:2471-1");
script_name(english:"SUSE SLED15 / SLES15 Security Update : libvirt (SUSE-SU-2021:2471-1)");
script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing a security update.");
script_set_attribute(attribute:"description", value:
"The remote SUSE Linux SLED15 / SLES15 host has packages installed that are affected by a vulnerability as referenced in
the SUSE-SU-2021:2471-1 advisory.
- A flaw was found in libvirt while it generates SELinux MCS category pairs for VMs' dynamic labels. This
flaw allows one exploited guest to access files labeled for another guest, resulting in the breaking out
of sVirt confinement. The highest threat from this vulnerability is to confidentiality and integrity.
(CVE-2021-3631)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1184253");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1187871");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-3631");
# https://lists.suse.com/pipermail/sle-security-updates/2021-July/009217.html
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?663f248f");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:N");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-3631");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2021/11/09");
script_set_attribute(attribute:"patch_publication_date", value:"2021/07/27");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/07/27");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-admin");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-bash-completion");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-client");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-daemon");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-daemon-config-network");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-daemon-config-nwfilter");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-interface");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-libxl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-lxc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-network");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-nodedev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-nwfilter");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-qemu");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-secret");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-storage");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-storage-core");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-storage-disk");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-storage-iscsi");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-storage-logical");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-storage-mpath");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-storage-rbd");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-storage-scsi");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-daemon-hooks");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-daemon-lxc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-daemon-qemu");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-daemon-xen");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-doc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-lock-sanlock");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libvirt-nss");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"SuSE Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list");
exit(0);
}
include('rpm.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item("Host/SuSE/release");
if (isnull(os_release) || os_release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
var os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'SUSE');
os_ver = os_ver[1];
if (! preg(pattern:"^(SLED15|SLES15)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLED15 / SLES15', 'SUSE (' + os_ver + ')');
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'SUSE (' + os_ver + ')', cpu);
var service_pack = get_kb_item("Host/SuSE/patchlevel");
if (isnull(service_pack)) service_pack = "0";
if (os_ver == "SLED15" && (! preg(pattern:"^(2)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLED15 SP2", os_ver + " SP" + service_pack);
if (os_ver == "SLES15" && (! preg(pattern:"^(2)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES15 SP2", os_ver + " SP" + service_pack);
var pkgs = [
{'reference':'libvirt-libs-6.0.0-13.16.2', 'sp':'2', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-basesystem-release-15.2']},
{'reference':'libvirt-libs-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-basesystem-release-15.2']},
{'reference':'libvirt-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-admin-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-bash-completion-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-client-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-daemon-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-daemon-config-network-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-daemon-config-nwfilter-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-daemon-driver-interface-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-daemon-driver-libxl-6.0.0-13.16.2', 'sp':'2', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-daemon-driver-lxc-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-daemon-driver-network-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-daemon-driver-nodedev-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-daemon-driver-nwfilter-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-daemon-driver-qemu-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-daemon-driver-secret-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-daemon-driver-storage-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-daemon-driver-storage-core-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-daemon-driver-storage-disk-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-daemon-driver-storage-iscsi-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-daemon-driver-storage-logical-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-daemon-driver-storage-mpath-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-daemon-driver-storage-rbd-6.0.0-13.16.2', 'sp':'2', 'cpu':'aarch64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-daemon-driver-storage-rbd-6.0.0-13.16.2', 'sp':'2', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-daemon-driver-storage-scsi-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-daemon-hooks-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-daemon-lxc-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-daemon-qemu-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-daemon-xen-6.0.0-13.16.2', 'sp':'2', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-devel-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-doc-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-lock-sanlock-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
{'reference':'libvirt-nss-6.0.0-13.16.2', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']}
];
var ltss_caveat_required = FALSE;
var flag = 0;
foreach var package_array ( pkgs ) {
var reference = NULL;
var _release = NULL;
var sp = NULL;
var _cpu = NULL;
var exists_check = NULL;
var rpm_spec_vers_cmp = NULL;
if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
if (!empty_or_null(package_array['release'])) _release = package_array['release'];
if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
if (reference && _release) {
if (exists_check) {
var check_flag = 0;
foreach var check (exists_check) {
if (!rpm_exists(release:_release, rpm:check)) continue;
check_flag++;
}
if (!check_flag) continue;
}
if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, rpm_spec_vers_cmp:rpm_spec_vers_cmp)) flag++;
}
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_NOTE,
extra : rpm_report_get()
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'libvirt / libvirt-admin / libvirt-bash-completion / libvirt-client / etc');
}
Vendor | Product | Version | CPE |
---|---|---|---|
novell | suse_linux | libvirt | p-cpe:/a:novell:suse_linux:libvirt |
novell | suse_linux | libvirt-admin | p-cpe:/a:novell:suse_linux:libvirt-admin |
novell | suse_linux | libvirt-bash-completion | p-cpe:/a:novell:suse_linux:libvirt-bash-completion |
novell | suse_linux | libvirt-client | p-cpe:/a:novell:suse_linux:libvirt-client |
novell | suse_linux | libvirt-daemon | p-cpe:/a:novell:suse_linux:libvirt-daemon |
novell | suse_linux | libvirt-daemon-config-network | p-cpe:/a:novell:suse_linux:libvirt-daemon-config-network |
novell | suse_linux | libvirt-daemon-config-nwfilter | p-cpe:/a:novell:suse_linux:libvirt-daemon-config-nwfilter |
novell | suse_linux | libvirt-daemon-driver-interface | p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-interface |
novell | suse_linux | libvirt-daemon-driver-libxl | p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-libxl |
novell | suse_linux | libvirt-daemon-driver-lxc | p-cpe:/a:novell:suse_linux:libvirt-daemon-driver-lxc |
3.3 Low
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:L/AC:M/Au:N/C:P/I:P/A:N
6.3 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
0.001 Low
EPSS
Percentile
26.8%