Debian DSA-3067-1 : qemu-kvm - security update

2014-11-07T00:00:00
ID DEBIAN_DSA-3067.NASL
Type nessus
Reporter Tenable
Modified 2018-07-09T00:00:00

Description

Several vulnerabilities were discovered in qemu-kvm, a full virtualization solution on x86 hardware.

  • CVE-2014-3689 The Advanced Threat Research team at Intel Security reported that guest provided parameter were insufficiently validated in rectangle functions in the vmware-vga driver. A privileged guest user could use this flaw to write into qemu address space on the host, potentially escalating their privileges to those of the qemu host process.

  • CVE-2014-7815 James Spadaro of Cisco reported insufficiently sanitized bits_per_pixel from the client in the QEMU VNC display driver. An attacker having access to the guest's VNC console could use this flaw to crash the guest.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-3067. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(78898);
  script_version("1.5");
  script_cvs_date("Date: 2018/07/09 14:30:25");

  script_cve_id("CVE-2014-3689", "CVE-2014-7815");
  script_xref(name:"DSA", value:"3067");

  script_name(english:"Debian DSA-3067-1 : qemu-kvm - security update");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Several vulnerabilities were discovered in qemu-kvm, a full
virtualization solution on x86 hardware.

  - CVE-2014-3689
    The Advanced Threat Research team at Intel Security
    reported that guest provided parameter were
    insufficiently validated in rectangle functions in the
    vmware-vga driver. A privileged guest user could use
    this flaw to write into qemu address space on the host,
    potentially escalating their privileges to those of the
    qemu host process.

  - CVE-2014-7815
    James Spadaro of Cisco reported insufficiently sanitized
    bits_per_pixel from the client in the QEMU VNC display
    driver. An attacker having access to the guest's VNC
    console could use this flaw to crash the guest."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2014-3689"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2014-7815"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/qemu-kvm"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.debian.org/security/2014/dsa-3067"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the qemu-kvm packages.

For the stable distribution (wheezy), these problems have been fixed
in version 1.1.2+dfsg-6+deb7u5."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/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-kvm");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2014/11/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/11/07");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2018 Tenable Network Security, Inc.");
  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:"kvm", reference:"1.1.2+dfsg-6+deb7u5")) flag++;
if (deb_check(release:"7.0", prefix:"qemu-kvm", reference:"1.1.2+dfsg-6+deb7u5")) flag++;
if (deb_check(release:"7.0", prefix:"qemu-kvm-dbg", reference:"1.1.2+dfsg-6+deb7u5")) flag++;

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