CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
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
AI Score
Confidence
High
EPSS
Percentile
87.5%
This update for qemu fixes the following issues :
Security issues fixed :
CVE-2018-10839: Fixed NE2000 NIC emulation support that is vulnerable to an integer overflow, which could lead to buffer overflow issue. It could occur when receiving packets over the network. A user inside guest could use this flaw to crash the Qemu process resulting in DoS (bsc#1110910).
CVE-2018-15746: Fixed qemu-seccomp.c that might allow local OS guest users to cause a denial of service (guest crash) by leveraging mishandling of the seccomp policy for threads other than the main thread (bsc#1106222).
CVE-2018-17958: Fixed a Buffer Overflow in rtl8139_do_receive in hw/net/rtl8139.c because an incorrect integer data type is used (bsc#1111006).
CVE-2018-17962: Fixed a Buffer Overflow in pcnet_receive in hw/net/pcnet.c because an incorrect integer data type is used (bsc#1111010).
CVE-2018-17963: Fixed qemu_deliver_packet_iov in net/net.c that accepts packet sizes greater than INT_MAX, which allows attackers to cause a denial of service or possibly have unspecified other impact.
(bsc#1111013)
CVE-2018-18849: Fixed an out of bounds memory access issue that was found in the LSI53C895A SCSI Host Bus Adapter emulation while writing a message in lsi_do_msgin. It could occur during migration if the ‘msg_len’ field has an invalid value. A user/process could use this flaw to crash the Qemu process resulting in DoS (bsc#1114422).
Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2018:3973-1.
# The text itself is copyright (C) SUSE.
#
include('compat.inc');
if (description)
{
script_id(119453);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/07/17");
script_cve_id(
"CVE-2018-10839",
"CVE-2018-15746",
"CVE-2018-17958",
"CVE-2018-17962",
"CVE-2018-17963",
"CVE-2018-18849"
);
script_name(english:"SUSE SLES12 Security Update : qemu (SUSE-SU-2018:3973-1)");
script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"This update for qemu fixes the following issues :
Security issues fixed :
CVE-2018-10839: Fixed NE2000 NIC emulation support that is vulnerable
to an integer overflow, which could lead to buffer overflow issue. It
could occur when receiving packets over the network. A user inside
guest could use this flaw to crash the Qemu process resulting in DoS
(bsc#1110910).
CVE-2018-15746: Fixed qemu-seccomp.c that might allow local OS guest
users to cause a denial of service (guest crash) by leveraging
mishandling of the seccomp policy for threads other than the main
thread (bsc#1106222).
CVE-2018-17958: Fixed a Buffer Overflow in rtl8139_do_receive in
hw/net/rtl8139.c because an incorrect integer data type is used
(bsc#1111006).
CVE-2018-17962: Fixed a Buffer Overflow in pcnet_receive in
hw/net/pcnet.c because an incorrect integer data type is used
(bsc#1111010).
CVE-2018-17963: Fixed qemu_deliver_packet_iov in net/net.c that
accepts packet sizes greater than INT_MAX, which allows attackers to
cause a denial of service or possibly have unspecified other impact.
(bsc#1111013)
CVE-2018-18849: Fixed an out of bounds memory access issue that was
found in the LSI53C895A SCSI Host Bus Adapter emulation while writing
a message in lsi_do_msgin. It could occur during migration if the
'msg_len' field has an invalid value. A user/process could use this
flaw to crash the Qemu process resulting in DoS (bsc#1114422).
Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1106222");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1110910");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1111006");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1111010");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1111013");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1114422");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-10839/");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-15746/");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-17958/");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-17962/");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-17963/");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-18849/");
# https://www.suse.com/support/update/announcement/2018/suse-su-20183973-1/
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?969b115d");
script_set_attribute(attribute:"solution", value:
"To install this SUSE Security Update use the SUSE recommended
installation methods like YaST online_update or 'zypper patch'.
Alternatively you can run the command listed for your product :
SUSE Linux Enterprise Server 12-SP1-LTSS:zypper in -t patch
SUSE-SLE-SERVER-12-SP1-2018-2834=1");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
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-2018-17963");
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:"2018/08/29");
script_set_attribute(attribute:"patch_publication_date", value:"2018/12/04");
script_set_attribute(attribute:"plugin_publication_date", value:"2018/12/06");
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-block-curl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-curl-debuginfo");
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-rbd-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-debugsource");
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-guest-agent-debuginfo");
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-s390");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-s390-debuginfo");
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-tools-debuginfo");
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) 2018-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLES12", "SUSE " + os_ver);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);
sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(1)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP1", os_ver + " SP" + sp);
flag = 0;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"qemu-block-rbd-2.3.1-33.17.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"qemu-block-rbd-debuginfo-2.3.1-33.17.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"qemu-x86-2.3.1-33.17.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"s390x", reference:"qemu-s390-2.3.1-33.17.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"s390x", reference:"qemu-s390-debuginfo-2.3.1-33.17.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"qemu-2.3.1-33.17.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"qemu-block-curl-2.3.1-33.17.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"qemu-block-curl-debuginfo-2.3.1-33.17.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"qemu-debugsource-2.3.1-33.17.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"qemu-guest-agent-2.3.1-33.17.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"qemu-guest-agent-debuginfo-2.3.1-33.17.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"qemu-kvm-2.3.1-33.17.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"qemu-lang-2.3.1-33.17.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"qemu-tools-2.3.1-33.17.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"qemu-tools-debuginfo-2.3.1-33.17.1")) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
else security_hole(0);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "qemu");
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-10839
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15746
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-17958
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-17962
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-17963
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18849
www.nessus.org/u?969b115d
bugzilla.suse.com/show_bug.cgi?id=1106222
bugzilla.suse.com/show_bug.cgi?id=1110910
bugzilla.suse.com/show_bug.cgi?id=1111006
bugzilla.suse.com/show_bug.cgi?id=1111010
bugzilla.suse.com/show_bug.cgi?id=1111013
bugzilla.suse.com/show_bug.cgi?id=1114422
www.suse.com/security/cve/CVE-2018-10839/
www.suse.com/security/cve/CVE-2018-15746/
www.suse.com/security/cve/CVE-2018-17958/
www.suse.com/security/cve/CVE-2018-17962/
www.suse.com/security/cve/CVE-2018-17963/
www.suse.com/security/cve/CVE-2018-18849/
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
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
AI Score
Confidence
High
EPSS
Percentile
87.5%