Ubuntu 8.04 LTS / 8.10 / 9.04 / 9.10 : irssi regression (USN-929-2)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-929-2. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(45589);
  script_version("1.9");
  script_cvs_date("Date: 2019/09/19 12:54:26");

  script_cve_id("CVE-2010-1155", "CVE-2010-1156");
  script_xref(name:"USN", value:"929-2");

  script_name(english:"Ubuntu 8.04 LTS / 8.10 / 9.04 / 9.10 : irssi regression (USN-929-2)");
  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-929-1 fixed vulnerabilities in irssi. The upstream changes
introduced a regression when using irssi with SSL and an IRC proxy.
This update fixes the problem.

We apologize for the inconvenience.

It was discovered that irssi did not perform certificate host
validation when using SSL connections. An attacker could exploit this
to perform a man in the middle attack to view sensitive information or
alter encrypted communications. (CVE-2010-1155)

Aurelien Delaitre discovered that irssi could be made to
dereference a NULL pointer when a user left the channel. A
remote attacker could cause a denial of service via
application crash. (CVE-2010-1156)

This update also adds SSLv3 and TLSv1 support, while
disabling the old, insecure SSLv2 protocol.

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/929-2/"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected irssi and / or irssi-dev packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:irssi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:irssi-dev");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:8.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:8.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:9.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:9.10");

  script_set_attribute(attribute:"vuln_publication_date", value:"2010/04/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2010/04/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/04/21");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2010-2019 Canonical, Inc. / NASL script (C) 2010-2019 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 (! preg(pattern:"^(8\.04|8\.10|9\.04|9\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 8.04 / 8.10 / 9.04 / 9.10", "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:"8.04", pkgname:"irssi", pkgver:"0.8.12-3ubuntu3.3")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"irssi-dev", pkgver:"0.8.12-3ubuntu3.3")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"irssi", pkgver:"0.8.12-4ubuntu2.3")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"irssi-dev", pkgver:"0.8.12-4ubuntu2.3")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"irssi", pkgver:"0.8.12-6ubuntu1.3")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"irssi-dev", pkgver:"0.8.12-6ubuntu1.3")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"irssi", pkgver:"0.8.14-1ubuntu1.2")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"irssi-dev", pkgver:"0.8.14-1ubuntu1.2")) 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, "irssi / irssi-dev");
}