Debian DSA-2769-1 : kfreebsd-9 - privilege escalation/denial of service

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-2769. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(70353);
  script_version("1.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");

  script_cve_id("CVE-2013-5691", "CVE-2013-5710");
  script_bugtraq_id(62302, 62303);
  script_xref(name:"DSA", value:"2769");

  script_name(english:"Debian DSA-2769-1 : kfreebsd-9 - privilege escalation/denial of service");
  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 have been discovered in the FreeBSD kernel
that may lead to a denial of service or privilege escalation. The
Common Vulnerabilities and Exposures project identifies the following
problems :

  - CVE-2013-5691
    Loganaden Velvindron and Gleb Smirnoff discovered that
    the SIOCSIFADDR, SIOCSIFBRDADDR, SIOCSIFDSTADDR and
    SIOCSIFNETMASK ioctl requests do not perform input
    validation or verify the caller's credentials.
    Unprivileged user with the ability to run arbitrary code
    can cause any network interface in the system to perform
    the link layer actions associated with the above ioctl
    requests or trigger a kernel panic by passing a
    specially crafted address structure which causes a
    network interface driver to dereference an invalid
    pointer.

  - CVE-2013-5710
    Konstantin Belousov discovered that the nullfs(5)
    implementation of the VOP_LINK(9) VFS operation does not
    check whether the source and target of the link are both
    in the same nullfs instance. It is therefore possible to
    create a hardlink from a location in one nullfs instance
    to a file in another, as long as the underlying (source)
    filesystem is the same. If multiple nullfs views into
    the same filesystem are mounted in different locations,
    a user may gain write access to files which are
    nominally on a read-only filesystem."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2013-5691"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2013-5710"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/kfreebsd-9"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2013/dsa-2769"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the kfreebsd-9 packages.

For the stable distribution (wheezy), these problems have been fixed
in version 9.0-10+deb70.4."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/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:kfreebsd-9");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2013/10/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/10/10");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2021 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:"kfreebsd-headers-9-486", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-headers-9-686", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-headers-9-686-smp", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-headers-9-amd64", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-headers-9-malta", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-headers-9-xen", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-headers-9.0-2", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-headers-9.0-2-486", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-headers-9.0-2-686", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-headers-9.0-2-686-smp", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-headers-9.0-2-amd64", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-headers-9.0-2-malta", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-headers-9.0-2-xen", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-image-9-486", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-image-9-686", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-image-9-686-smp", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-image-9-amd64", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-image-9-malta", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-image-9-xen", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-image-9.0-2-486", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-image-9.0-2-686", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-image-9.0-2-686-smp", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-image-9.0-2-amd64", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-image-9.0-2-malta", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-image-9.0-2-xen", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-source-9.0", reference:"9.0-10+deb70.4")) flag++;

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