The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:1151-1 advisory.
A NULL pointer dereference flaw was found in the floppy disk emulator of QEMU. This issue occurs while processing read/write ioport commands if the selected floppy drive is not initialized with a block device.
This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability. (CVE-2021-20196)
An off-by-one error was found in the SCSI device emulation in QEMU. It could occur while processing MODE SELECT commands in mode_sense_page() if the ‘page’ argument was set to MODE_PAGE_ALLS (0x3f). A malicious guest could use this flaw to potentially crash QEMU, resulting in a denial of service condition.
(CVE-2021-3930)
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 70300
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2022:1151-1. The text itself
# is copyright (C) SUSE.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(159661);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/13");
script_cve_id("CVE-2021-3930", "CVE-2021-20196");
script_xref(name:"SuSE", value:"SUSE-SU-2022:1151-1");
script_name(english:"SUSE SLES12 Security Update : qemu (SUSE-SU-2022:1151-1)");
script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as
referenced in the SUSE-SU-2022:1151-1 advisory.
- A NULL pointer dereference flaw was found in the floppy disk emulator of QEMU. This issue occurs while
processing read/write ioport commands if the selected floppy drive is not initialized with a block device.
This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of
service. The highest threat from this vulnerability is to system availability. (CVE-2021-20196)
- An off-by-one error was found in the SCSI device emulation in QEMU. It could occur while processing MODE
SELECT commands in mode_sense_page() if the 'page' argument was set to MODE_PAGE_ALLS (0x3f). A malicious
guest could use this flaw to potentially crash QEMU, resulting in a denial of service condition.
(CVE-2021-3930)
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://bugzilla.suse.com/1181361");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1187529");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1192463");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1192525");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1196737");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-20196");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-3930");
# https://lists.suse.com/pipermail/sle-security-updates/2022-April/010676.html
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?df4e0d4e");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/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-2021-3930");
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:"2021/05/26");
script_set_attribute(attribute:"patch_publication_date", value:"2022/04/11");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/04/12");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-arm");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-audio-alsa");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-audio-oss");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-audio-pa");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-audio-sdl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-curl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-iscsi");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-rbd");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-ssh");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-guest-agent");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-ipxe");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-kvm");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-lang");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-ppc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-s390");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-seabios");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-sgabios");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-tools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-ui-curses");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-ui-gtk");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-ui-sdl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-vgabios");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-x86");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");
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) 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/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)(?:_SAP)?\d+)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'SUSE');
os_ver = os_ver[1];
if (! preg(pattern:"^(SLES12|SLES_SAP12)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLES12 / SLES_SAP12', 'SUSE (' + os_ver + ')');
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && '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 == "SLES12" && (! preg(pattern:"^(5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES12 SP5", os_ver + " SP" + service_pack);
if (os_ver == "SLES_SAP12" && (! preg(pattern:"^(5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES_SAP12 SP5", os_ver + " SP" + service_pack);
var pkgs = [
{'reference':'qemu-3.1.1.1-63.4', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'qemu-arm-3.1.1.1-63.4', 'sp':'5', 'cpu':'aarch64', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'qemu-audio-alsa-3.1.1.1-63.4', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'qemu-audio-oss-3.1.1.1-63.4', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'qemu-audio-pa-3.1.1.1-63.4', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'qemu-audio-sdl-3.1.1.1-63.4', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'qemu-block-curl-3.1.1.1-63.4', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'qemu-block-iscsi-3.1.1.1-63.4', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'qemu-block-rbd-3.1.1.1-63.4', 'sp':'5', 'cpu':'aarch64', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'qemu-block-rbd-3.1.1.1-63.4', 'sp':'5', 'cpu':'x86_64', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'qemu-block-ssh-3.1.1.1-63.4', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'qemu-guest-agent-3.1.1.1-63.4', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'qemu-ipxe-1.0.0+-63.4', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'qemu-kvm-3.1.1.1-63.4', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'qemu-lang-3.1.1.1-63.4', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'qemu-s390-3.1.1.1-63.4', 'sp':'5', 'cpu':'s390x', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'qemu-seabios-1.12.0_0_ga698c89-63.4', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'qemu-sgabios-8-63.4', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'qemu-tools-3.1.1.1-63.4', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'qemu-ui-curses-3.1.1.1-63.4', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'qemu-ui-gtk-3.1.1.1-63.4', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'qemu-ui-sdl-3.1.1.1-63.4', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'qemu-vgabios-1.12.0_0_ga698c89-63.4', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'qemu-x86-3.1.1.1-63.4', 'sp':'5', 'cpu':'x86_64', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'qemu-3.1.1.1-63.4', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
{'reference':'qemu-arm-3.1.1.1-63.4', 'sp':'5', 'cpu':'aarch64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
{'reference':'qemu-audio-alsa-3.1.1.1-63.4', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
{'reference':'qemu-audio-oss-3.1.1.1-63.4', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
{'reference':'qemu-audio-pa-3.1.1.1-63.4', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
{'reference':'qemu-audio-sdl-3.1.1.1-63.4', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
{'reference':'qemu-block-curl-3.1.1.1-63.4', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
{'reference':'qemu-block-iscsi-3.1.1.1-63.4', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
{'reference':'qemu-block-rbd-3.1.1.1-63.4', 'sp':'5', 'cpu':'aarch64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
{'reference':'qemu-block-rbd-3.1.1.1-63.4', 'sp':'5', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
{'reference':'qemu-block-ssh-3.1.1.1-63.4', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
{'reference':'qemu-guest-agent-3.1.1.1-63.4', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
{'reference':'qemu-ipxe-1.0.0+-63.4', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
{'reference':'qemu-kvm-3.1.1.1-63.4', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
{'reference':'qemu-lang-3.1.1.1-63.4', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
{'reference':'qemu-s390-3.1.1.1-63.4', 'sp':'5', 'cpu':'s390x', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
{'reference':'qemu-seabios-1.12.0_0_ga698c89-63.4', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
{'reference':'qemu-sgabios-8-63.4', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
{'reference':'qemu-tools-3.1.1.1-63.4', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
{'reference':'qemu-ui-curses-3.1.1.1-63.4', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
{'reference':'qemu-ui-gtk-3.1.1.1-63.4', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
{'reference':'qemu-ui-sdl-3.1.1.1-63.4', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
{'reference':'qemu-vgabios-1.12.0_0_ga698c89-63.4', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
{'reference':'qemu-x86-3.1.1.1-63.4', 'sp':'5', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']}
];
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, 'qemu / qemu-arm / qemu-audio-alsa / qemu-audio-oss / qemu-audio-pa / etc');
}
Vendor | Product | Version | CPE |
---|---|---|---|
novell | suse_linux | qemu | p-cpe:/a:novell:suse_linux:qemu |
novell | suse_linux | qemu-arm | p-cpe:/a:novell:suse_linux:qemu-arm |
novell | suse_linux | qemu-audio-alsa | p-cpe:/a:novell:suse_linux:qemu-audio-alsa |
novell | suse_linux | qemu-audio-oss | p-cpe:/a:novell:suse_linux:qemu-audio-oss |
novell | suse_linux | qemu-audio-pa | p-cpe:/a:novell:suse_linux:qemu-audio-pa |
novell | suse_linux | qemu-audio-sdl | p-cpe:/a:novell:suse_linux:qemu-audio-sdl |
novell | suse_linux | qemu-block-curl | p-cpe:/a:novell:suse_linux:qemu-block-curl |
novell | suse_linux | qemu-block-iscsi | p-cpe:/a:novell:suse_linux:qemu-block-iscsi |
novell | suse_linux | qemu-block-rbd | p-cpe:/a:novell:suse_linux:qemu-block-rbd |
novell | suse_linux | qemu-block-ssh | p-cpe:/a:novell:suse_linux:qemu-block-ssh |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20196
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3930
www.nessus.org/u?df4e0d4e
bugzilla.suse.com/1181361
bugzilla.suse.com/1187529
bugzilla.suse.com/1192463
bugzilla.suse.com/1192525
bugzilla.suse.com/1196737
www.suse.com/security/cve/CVE-2021-20196
www.suse.com/security/cve/CVE-2021-3930