Debian DLA-678-1 : qemu security update

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-678-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(94257);
  script_version("1.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");

  script_cve_id("CVE-2016-8576", "CVE-2016-8577", "CVE-2016-8578", "CVE-2016-8669");

  script_name(english:"Debian DLA-678-1 : qemu security update");
  script_summary(english:"Checks dpkg output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Multiple vulnerabilities have been found in QEMU :

CVE-2016-8576

Quick Emulator (Qemu) built with the USB xHCI controller emulation
support is vulnerable to an infinite loop issue. It could occur while
processing USB command ring in 'xhci_ring_fetch'.

CVE-2016-8577

Quick Emulator (Qemu) built with the virtio-9p back-end support is
vulnerable to a memory leakage issue. It could occur while doing a I/O
read operation in v9fs_read() routine.

CVE-2016-8578

Quick Emulator (Qemu) built with the virtio-9p back-end support is
vulnerable to a NULL pointer dereference issue. It could occur while
doing an I/O vector unmarshalling operation in v9fs_iov_vunmarshal()
routine.

CVE-2016-8669

Quick Emulator (Qemu) built with the 16550A UART emulation support is
vulnerable to a divide by zero issue. It could occur while updating
serial device parameters in 'serial_update_parameters'.

For Debian 7 'Wheezy', these problems have been fixed in version
1.1.2+dfsg-6+deb7u17.

We recommend that you upgrade your qemu packages.

NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA 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://lists.debian.org/debian-lts-announce/2016/10/msg00032.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/qemu"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:qemu");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:qemu-keymaps");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:qemu-system");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:qemu-user");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:qemu-user-static");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:qemu-utils");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2016/10/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/10/26");
  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:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"7.0", prefix:"qemu", reference:"1.1.2+dfsg-6+deb7u17")) flag++;
if (deb_check(release:"7.0", prefix:"qemu-keymaps", reference:"1.1.2+dfsg-6+deb7u17")) flag++;
if (deb_check(release:"7.0", prefix:"qemu-system", reference:"1.1.2+dfsg-6+deb7u17")) flag++;
if (deb_check(release:"7.0", prefix:"qemu-user", reference:"1.1.2+dfsg-6+deb7u17")) flag++;
if (deb_check(release:"7.0", prefix:"qemu-user-static", reference:"1.1.2+dfsg-6+deb7u17")) flag++;
if (deb_check(release:"7.0", prefix:"qemu-utils", reference:"1.1.2+dfsg-6+deb7u17")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_note(port:0, extra:deb_report_get());
  else security_note(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");