Ubuntu 5.04 / 5.10 / 6.06 LTS : courier vulnerability (USN-294-1)

2007-11-10T00:00:00
ID UBUNTU_USN-294-1.NASL
Type nessus
Reporter Tenable
Modified 2016-05-26T00:00:00

Description

A Denial of Service vulnerability has been found in the function for encoding email addresses. Addresses containing a '=' before the '@' character caused the Courier to hang in an endless loop, rendering the service unusable.

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-294-1. 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(27866);
  script_version("$Revision: 1.11 $");
  script_cvs_date("$Date: 2016/05/26 16:22:51 $");

  script_cve_id("CVE-2006-2659");
  script_osvdb_id(26232);
  script_xref(name:"USN", value:"294-1");

  script_name(english:"Ubuntu 5.04 / 5.10 / 6.06 LTS : courier vulnerability (USN-294-1)");
  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 Denial of Service vulnerability has been found in the function for
encoding email addresses. Addresses containing a '=' before the '@'
character caused the Courier to hang in an endless loop, rendering the
service unusable.

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_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-authdaemon");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-authmysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-authpostgresql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-faxmail");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-imap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-imap-ssl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-maildrop");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-mlm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-mta");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-mta-ssl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-pcp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-pop");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-pop-ssl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-ssl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:courier-webadmin");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:sqwebmail");
  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:"cpe", value:"cpe:/o:canonical:ubuntu_linux:6.06:-:lts");

  script_set_attribute(attribute:"patch_publication_date", value:"2006/06/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2007/11/10");
  script_set_attribute(attribute:"vuln_publication_date", value:"2006/06/08");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2006-2016 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\.04|5\.10|6\.06)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 5.04 / 5.10 / 6.06", "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:"5.04", pkgname:"courier-authdaemon", pkgver:"0.47-3ubuntu1.5")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-authmysql", pkgver:"0.47-3ubuntu1.5")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-authpostgresql", pkgver:"0.47-3ubuntu1.5")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-base", pkgver:"0.47-3ubuntu1.5")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-doc", pkgver:"0.47-3ubuntu1.5")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-faxmail", pkgver:"0.47-3ubuntu1.5")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-imap", pkgver:"3.0.8-3ubuntu1.5")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-imap-ssl", pkgver:"3.0.8-3ubuntu1.5")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-ldap", pkgver:"0.47-3ubuntu1.5")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-maildrop", pkgver:"0.47-3ubuntu1.5")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-mlm", pkgver:"0.47-3ubuntu1.5")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-mta", pkgver:"0.47-3ubuntu1.5")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-mta-ssl", pkgver:"0.47-3ubuntu1.5")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-pcp", pkgver:"0.47-3ubuntu1.5")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-pop", pkgver:"0.47-3ubuntu1.5")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-pop-ssl", pkgver:"0.47-3ubuntu1.5")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-ssl", pkgver:"0.47-3ubuntu1.5")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"courier-webadmin", pkgver:"0.47-3ubuntu1.5")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"sqwebmail", pkgver:"0.47-3ubuntu1.5")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"courier-authdaemon", pkgver:"0.47-3ubuntu7.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"courier-authmysql", pkgver:"0.47-3ubuntu7.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"courier-authpostgresql", pkgver:"0.47-3ubuntu7.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"courier-base", pkgver:"0.47-3ubuntu7.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"courier-doc", pkgver:"0.47-3ubuntu7.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"courier-faxmail", pkgver:"0.47-3ubuntu7.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"courier-imap", pkgver:"3.0.8-3ubuntu7.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"courier-imap-ssl", pkgver:"3.0.8-3ubuntu7.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"courier-ldap", pkgver:"0.47-3ubuntu7.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"courier-maildrop", pkgver:"0.47-3ubuntu7.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"courier-mlm", pkgver:"0.47-3ubuntu7.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"courier-mta", pkgver:"0.47-3ubuntu7.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"courier-mta-ssl", pkgver:"0.47-3ubuntu7.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"courier-pcp", pkgver:"0.47-3ubuntu7.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"courier-pop", pkgver:"0.47-3ubuntu7.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"courier-pop-ssl", pkgver:"0.47-3ubuntu7.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"courier-ssl", pkgver:"0.47-3ubuntu7.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"courier-webadmin", pkgver:"0.47-3ubuntu7.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"sqwebmail", pkgver:"0.47-3ubuntu7.2")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"courier-authdaemon", pkgver:"0.47-13ubuntu5.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"courier-authmysql", pkgver:"0.47-13ubuntu5.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"courier-authpostgresql", pkgver:"0.47-13ubuntu5.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"courier-base", pkgver:"0.47-13ubuntu5.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"courier-doc", pkgver:"0.47-13ubuntu5.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"courier-faxmail", pkgver:"0.47-13ubuntu5.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"courier-imap", pkgver:"3.0.8-13ubuntu5.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"courier-imap-ssl", pkgver:"3.0.8-13ubuntu5.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"courier-ldap", pkgver:"0.47-13ubuntu5.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"courier-maildrop", pkgver:"0.47-13ubuntu5.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"courier-mlm", pkgver:"0.47-13ubuntu5.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"courier-mta", pkgver:"0.47-13ubuntu5.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"courier-mta-ssl", pkgver:"0.47-13ubuntu5.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"courier-pcp", pkgver:"0.47-13ubuntu5.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"courier-pop", pkgver:"0.47-13ubuntu5.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"courier-pop-ssl", pkgver:"0.47-13ubuntu5.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"courier-ssl", pkgver:"0.47-13ubuntu5.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"courier-webadmin", pkgver:"0.47-13ubuntu5.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"sqwebmail", pkgver:"0.47-13ubuntu5.1")) 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, "courier-authdaemon / courier-authmysql / courier-authpostgresql / etc");
}