Ubuntu 8.10 : ruby1.9 vulnerability (USN-691-1)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-691-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

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

if (description)
{
  script_id(37474);
  script_version("1.16");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");

  script_cve_id("CVE-2008-3443", "CVE-2008-3790");
  script_bugtraq_id(30682, 30802);
  script_xref(name:"USN", value:"691-1");

  script_name(english:"Ubuntu 8.10 : ruby1.9 vulnerability (USN-691-1)");
  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:
"Laurent Gaffie discovered that Ruby did not properly check for memory
allocation failures. If a user or automated system were tricked into
running a malicious script, an attacker could cause a denial of
service. (CVE-2008-3443)

This update also fixes a regression in the upstream patch previously
applied to fix CVE-2008-3790. The regression would cause parsing of
some XML documents to fail.

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:"see_also",
    value:"https://usn.ubuntu.com/691-1/"
  );
  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:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_cwe_id(20, 399);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:irb1.9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libdbm-ruby1.9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libgdbm-ruby1.9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libopenssl-ruby1.9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libreadline-ruby1.9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libruby1.9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libruby1.9-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libtcltk-ruby1.9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:rdoc1.9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:ri1.9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:ruby1.9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:ruby1.9-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:ruby1.9-elisp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:ruby1.9-examples");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:8.10");

  script_set_attribute(attribute:"patch_publication_date", value:"2008/12/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2009/04/23");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2008-2019 Canonical, Inc. / NASL script (C) 2009-2018 and is owned by Tenable, Inc. or an Affiliate thereof.");
  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:"^(8\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 8.10", "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:"8.10", pkgname:"irb1.9", pkgver:"1.9.0.2-7ubuntu1.1")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"libdbm-ruby1.9", pkgver:"1.9.0.2-7ubuntu1.1")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"libgdbm-ruby1.9", pkgver:"1.9.0.2-7ubuntu1.1")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"libopenssl-ruby1.9", pkgver:"1.9.0.2-7ubuntu1.1")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"libreadline-ruby1.9", pkgver:"1.9.0.2-7ubuntu1.1")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"libruby1.9", pkgver:"1.9.0.2-7ubuntu1.1")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"libruby1.9-dbg", pkgver:"1.9.0.2-7ubuntu1.1")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"libtcltk-ruby1.9", pkgver:"1.9.0.2-7ubuntu1.1")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"rdoc1.9", pkgver:"1.9.0.2-7ubuntu1.1")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"ri1.9", pkgver:"1.9.0.2-7ubuntu1.1")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"ruby1.9", pkgver:"1.9.0.2-7ubuntu1.1")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"ruby1.9-dev", pkgver:"1.9.0.2-7ubuntu1.1")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"ruby1.9-elisp", pkgver:"1.9.0.2-7ubuntu1.1")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"ruby1.9-examples", pkgver:"1.9.0.2-7ubuntu1.1")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    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, "irb1.9 / libdbm-ruby1.9 / libgdbm-ruby1.9 / libopenssl-ruby1.9 / etc");
}