Scientific Linux Security Update : qemu-kvm on SL7.x x86_64 (20160811)

#%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(92998);
  script_version("2.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");

  script_cve_id("CVE-2016-5126", "CVE-2016-5403");

  script_name(english:"Scientific Linux Security Update : qemu-kvm on SL7.x x86_64 (20160811)");
  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) :

  - Quick Emulator(Qemu) built with the Block driver for
    iSCSI images support (virtio-blk) is vulnerable to a
    heap buffer overflow issue. It could occur while
    processing iSCSI asynchronous I/O ioctl(2) calls. A user
    inside guest could use this flaw to crash the Qemu
    process resulting in DoS or potentially leverage it to
    execute arbitrary code with privileges of the Qemu
    process on the host. (CVE-2016-5126)

  - Quick emulator(Qemu) built with the virtio framework is
    vulnerable to an unbounded memory allocation issue. It
    was found that a malicious guest user could submit more
    requests than the virtqueue size permits. Processing a
    request allocates a VirtQueueElement and therefore
    causes unbounded memory allocation on the host
    controlled by the guest. (CVE-2016-5403)"
  );
  # https://listserv.fnal.gov/scripts/wa.exe?A2=ind1608&L=scientific-linux-errata&F=&S=&P=5513
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?d549ef68"
  );
  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:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:libcacard");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:libcacard-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:libcacard-tools");
  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:"2016/06/01");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/08/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/08/17");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2021 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:"libcacard-1.5.3-105.el7_2.7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"libcacard-devel-1.5.3-105.el7_2.7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"libcacard-tools-1.5.3-105.el7_2.7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"qemu-img-1.5.3-105.el7_2.7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"qemu-kvm-1.5.3-105.el7_2.7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"qemu-kvm-common-1.5.3-105.el7_2.7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"qemu-kvm-debuginfo-1.5.3-105.el7_2.7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"qemu-kvm-tools-1.5.3-105.el7_2.7")) 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, "libcacard / libcacard-devel / libcacard-tools / qemu-img / qemu-kvm / etc");
}