Ubuntu 4.10 / 5.04 / 5.10 : ucd-snmp vulnerability (USN-190-2)

#%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-190-2. 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(20604);
  script_version("1.16");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");

  script_cve_id("CVE-2005-2177");
  script_xref(name:"USN", value:"190-2");

  script_name(english:"Ubuntu 4.10 / 5.04 / 5.10 : ucd-snmp vulnerability (USN-190-2)");
  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:
"USN-190-1 fixed a vulnerability in the net-snmp library. It was
discovered that the same problem also affects the ucs-snmp
implementation (which is used by the Cyrus email server).

Original advisory :

A remote Denial of Service has been discovered in the SMNP (Simple
Network Management Protocol) library. If a SNMP agent uses TCP sockets
for communication, a malicious SNMP server could exploit this to crash
the agent. Please note that by default SNMP uses UDP sockets.

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 libsnmp4.2 and / or libsnmp4.2-dev packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_cwe_id(20);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libsnmp4.2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libsnmp4.2-dev");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:4.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:5.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:5.10");

  script_set_attribute(attribute:"patch_publication_date", value:"2005/11/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/01/15");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2005-2019 Canonical, Inc. / NASL script (C) 2006-2016 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:"^(4\.10|5\.04|5\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 4.10 / 5.04 / 5.10", "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:"4.10", pkgname:"libsnmp4.2", pkgver:"4.2.5-3.5ubuntu0.4.10")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"libsnmp4.2-dev", pkgver:"4.2.5-3.5ubuntu0.4.10")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"libsnmp4.2", pkgver:"4.2.5-3.5ubuntu0.5.04")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"libsnmp4.2-dev", pkgver:"4.2.5-3.5ubuntu0.5.04")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"libsnmp4.2", pkgver:"4.2.5-5ubuntu0.1")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"libsnmp4.2-dev", pkgver:"4.2.5-5ubuntu0.1")) 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, "libsnmp4.2 / libsnmp4.2-dev");
}