Ubuntu 5.10 / 6.06 LTS / 6.10 : bind9 vulnerabilities (USN-418-1)

2007-11-10T00:00:00
ID UBUNTU_USN-418-1.NASL
Type nessus
Reporter Tenable
Modified 2016-05-27T00:00:00

Description

A flaw was discovered in Bind's DNSSEC validation code. Remote attackers could send a specially crafted DNS query which would cause the Bind server to crash, resulting in a denial of service. Only servers configured to use DNSSEC extensions were vulnerable.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-418-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(28010);
  script_version("$Revision: 1.11 $");
  script_cvs_date("$Date: 2016/05/27 14:29:17 $");

  script_cve_id("CVE-2007-0493", "CVE-2007-0494");
  script_bugtraq_id(22229, 22231);
  script_xref(name:"USN", value:"418-1");

  script_name(english:"Ubuntu 5.10 / 6.06 LTS / 6.10 : bind9 vulnerabilities (USN-418-1)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"A flaw was discovered in Bind's DNSSEC validation code. Remote
attackers could send a specially crafted DNS query which would cause
the Bind server to crash, resulting in a denial of service. Only
servers configured to use DNSSEC extensions were vulnerable.

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:ND/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:canonical:ubuntu_linux:bind9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:bind9-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:bind9-host");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:dnsutils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libbind-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libbind9-0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libdns20");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libdns21");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libisc11");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libisc9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libisccc0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libisccfg1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:liblwres1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:liblwres9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:lwresd");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:5.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:6.06:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:6.10");

  script_set_attribute(attribute:"patch_publication_date", value:"2007/02/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2007/11/10");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2007-2016 Canonical, Inc. / NASL script (C) 2007-2016 Tenable Network Security, Inc.");
  script_family(english:"Ubuntu Local Security Checks");

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

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("misc_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! ereg(pattern:"^(5\.10|6\.06|6\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 5.10 / 6.06 / 6.10", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu);

flag = 0;

if (ubuntu_check(osver:"5.10", pkgname:"bind9", pkgver:"9.3.1-2ubuntu1.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"bind9-doc", pkgver:"9.3.1-2ubuntu1.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"bind9-host", pkgver:"9.3.1-2ubuntu1.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"dnsutils", pkgver:"9.3.1-2ubuntu1.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"libbind-dev", pkgver:"9.3.1-2ubuntu1.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"libbind9-0", pkgver:"9.3.1-2ubuntu1.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"libdns20", pkgver:"1:9.3.1-2ubuntu1.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"libisc9", pkgver:"9.3.1-2ubuntu1.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"libisccc0", pkgver:"9.3.1-2ubuntu1.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"libisccfg1", pkgver:"9.3.1-2ubuntu1.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"liblwres1", pkgver:"9.3.1-2ubuntu1.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"lwresd", pkgver:"9.3.1-2ubuntu1.2")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"bind9", pkgver:"9.3.2-2ubuntu1.2")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"bind9-doc", pkgver:"9.3.2-2ubuntu1.2")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"bind9-host", pkgver:"9.3.2-2ubuntu1.2")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"dnsutils", pkgver:"9.3.2-2ubuntu1.2")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"libbind-dev", pkgver:"9.3.2-2ubuntu1.2")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"libbind9-0", pkgver:"9.3.2-2ubuntu1.2")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"libdns21", pkgver:"1:9.3.2-2ubuntu1.2")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"libisc11", pkgver:"9.3.2-2ubuntu1.2")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"libisccc0", pkgver:"9.3.2-2ubuntu1.2")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"libisccfg1", pkgver:"9.3.2-2ubuntu1.2")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"liblwres9", pkgver:"9.3.2-2ubuntu1.2")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"lwresd", pkgver:"9.3.2-2ubuntu1.2")) flag++;
if (ubuntu_check(osver:"6.10", pkgname:"bind9", pkgver:"9.3.2-2ubuntu3.1")) flag++;
if (ubuntu_check(osver:"6.10", pkgname:"bind9-doc", pkgver:"9.3.2-2ubuntu3.1")) flag++;
if (ubuntu_check(osver:"6.10", pkgname:"bind9-host", pkgver:"9.3.2-2ubuntu3.1")) flag++;
if (ubuntu_check(osver:"6.10", pkgname:"dnsutils", pkgver:"9.3.2-2ubuntu3.1")) flag++;
if (ubuntu_check(osver:"6.10", pkgname:"libbind-dev", pkgver:"9.3.2-2ubuntu3.1")) flag++;
if (ubuntu_check(osver:"6.10", pkgname:"libbind9-0", pkgver:"9.3.2-2ubuntu3.1")) flag++;
if (ubuntu_check(osver:"6.10", pkgname:"libdns21", pkgver:"1:9.3.2-2ubuntu3.1")) flag++;
if (ubuntu_check(osver:"6.10", pkgname:"libisc11", pkgver:"9.3.2-2ubuntu3.1")) flag++;
if (ubuntu_check(osver:"6.10", pkgname:"libisccc0", pkgver:"9.3.2-2ubuntu3.1")) flag++;
if (ubuntu_check(osver:"6.10", pkgname:"libisccfg1", pkgver:"9.3.2-2ubuntu3.1")) flag++;
if (ubuntu_check(osver:"6.10", pkgname:"liblwres9", pkgver:"9.3.2-2ubuntu3.1")) flag++;
if (ubuntu_check(osver:"6.10", pkgname:"lwresd", pkgver:"9.3.2-2ubuntu3.1")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "bind9 / bind9-doc / bind9-host / dnsutils / libbind-dev / etc");
}