4 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:N/I:N/A:P
6.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
0.002 Low
EPSS
Percentile
61.9%
Security Fix(es) :
An out-of-bounds memory access issue was found in Quick Emulator (QEMU) in the VNC display driver. This flaw could occur while refreshing the VNC display surface area in the ‘vnc_refresh_server_surface’. A user inside a guest could use this flaw to crash the QEMU process.
(CVE-2017-2633)
An integer overflow flaw was found in Quick Emulator (QEMU) in the CCID Card device support. The flaw could occur while passing messages via command/response packets to and from the host. A privileged user inside a guest could use this flaw to crash the QEMU process.
(CVE-2017-5898)
An information exposure flaw was found in Quick Emulator (QEMU) in Task Priority Register (TPR) optimizations for 32-bit Windows guests. The flaw could occur while accessing TPR. A privileged user inside a guest could use this issue to read portions of the host memory.
(CVE-2016-4020)
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text is (C) Scientific Linux.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(102655);
script_version("3.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2016-4020", "CVE-2017-2633", "CVE-2017-5898");
script_name(english:"Scientific Linux Security Update : qemu-kvm on SL7.x x86_64 (20170801)");
script_summary(english:"Checks rpm output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:
"The remote Scientific Linux host is missing one or more security
updates."
);
script_set_attribute(
attribute:"description",
value:
"Security Fix(es) :
- An out-of-bounds memory access issue was found in Quick
Emulator (QEMU) in the VNC display driver. This flaw
could occur while refreshing the VNC display surface
area in the 'vnc_refresh_server_surface'. A user inside
a guest could use this flaw to crash the QEMU process.
(CVE-2017-2633)
- An integer overflow flaw was found in Quick Emulator
(QEMU) in the CCID Card device support. The flaw could
occur while passing messages via command/response
packets to and from the host. A privileged user inside a
guest could use this flaw to crash the QEMU process.
(CVE-2017-5898)
- An information exposure flaw was found in Quick Emulator
(QEMU) in Task Priority Register (TPR) optimizations for
32-bit Windows guests. The flaw could occur while
accessing TPR. A privileged user inside a guest could
use this issue to read portions of the host memory.
(CVE-2016-4020)"
);
# https://listserv.fnal.gov/scripts/wa.exe?A2=ind1708&L=scientific-linux-errata&F=&S=&P=12131
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?76fa9882"
);
script_set_attribute(attribute:"solution", value:"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:P");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:qemu-img");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:qemu-kvm");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:qemu-kvm-common");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:qemu-kvm-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:qemu-kvm-tools");
script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");
script_set_attribute(attribute:"vuln_publication_date", value:"2016/05/25");
script_set_attribute(attribute:"patch_publication_date", value:"2017/08/01");
script_set_attribute(attribute:"plugin_publication_date", value:"2017/08/22");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2017-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Scientific Linux Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/RedHat/release", "Host/RedHat/rpm-list");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux");
os_ver = pregmatch(pattern: "Scientific Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Scientific Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Scientific Linux 7.x", "Scientific Linux " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu);
if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);
flag = 0;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"qemu-img-1.5.3-141.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"qemu-kvm-1.5.3-141.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"qemu-kvm-common-1.5.3-141.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"qemu-kvm-debuginfo-1.5.3-141.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"qemu-kvm-tools-1.5.3-141.el7")) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : rpm_report_get()
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "qemu-img / qemu-kvm / qemu-kvm-common / qemu-kvm-debuginfo / etc");
}
Vendor | Product | Version | CPE |
---|---|---|---|
fermilab | scientific_linux | qemu-img | p-cpe:/a:fermilab:scientific_linux:qemu-img |
fermilab | scientific_linux | qemu-kvm | p-cpe:/a:fermilab:scientific_linux:qemu-kvm |
fermilab | scientific_linux | qemu-kvm-common | p-cpe:/a:fermilab:scientific_linux:qemu-kvm-common |
fermilab | scientific_linux | qemu-kvm-debuginfo | p-cpe:/a:fermilab:scientific_linux:qemu-kvm-debuginfo |
fermilab | scientific_linux | qemu-kvm-tools | p-cpe:/a:fermilab:scientific_linux:qemu-kvm-tools |
fermilab | scientific_linux | x-cpe:/o:fermilab:scientific_linux |
4 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:N/I:N/A:P
6.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
0.002 Low
EPSS
Percentile
61.9%