Ubuntu 7.10 / 8.04 LTS : pidgin vulnerabilities (USN-675-1)

2009-04-23T00:00:00
ID UBUNTU_USN-675-1.NASL
Type nessus
Reporter Tenable
Modified 2016-12-01T00:00:00

Description

It was discovered that Pidgin did not properly handle certain malformed messages in the MSN protocol handler. A remote attacker could send a specially crafted message and possibly execute arbitrary code with user privileges. (CVE-2008-2927)

It was discovered that Pidgin did not properly handle file transfers containing a long filename and special characters in the MSN protocol handler. A remote attacker could send a specially crafted filename in a file transfer request and cause Pidgin to crash, leading to a denial of service. (CVE-2008-2955)

It was discovered that Pidgin did not impose resource limitations in the UPnP service. A remote attacker could cause Pidgin to download arbitrary files and cause a denial of service from memory or disk space exhaustion. (CVE-2008-2957)

It was discovered that Pidgin did not validate SSL certificates when using a secure connection. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could be exploited to view sensitive information. This update alters Pidgin behaviour by asking users to confirm the validity of a certificate upon initial login. (CVE-2008-3532).

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-675-1. 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(36899);
  script_version("$Revision: 1.10 $");
  script_cvs_date("$Date: 2016/12/01 21:21:51 $");

  script_cve_id("CVE-2008-2927", "CVE-2008-2955", "CVE-2008-2957", "CVE-2008-3532");
  script_xref(name:"USN", value:"675-1");

  script_name(english:"Ubuntu 7.10 / 8.04 LTS : pidgin vulnerabilities (USN-675-1)");
  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:
"It was discovered that Pidgin did not properly handle certain
malformed messages in the MSN protocol handler. A remote attacker
could send a specially crafted message and possibly execute arbitrary
code with user privileges. (CVE-2008-2927)

It was discovered that Pidgin did not properly handle file transfers
containing a long filename and special characters in the MSN protocol
handler. A remote attacker could send a specially crafted filename in
a file transfer request and cause Pidgin to crash, leading to a denial
of service. (CVE-2008-2955)

It was discovered that Pidgin did not impose resource limitations in
the UPnP service. A remote attacker could cause Pidgin to download
arbitrary files and cause a denial of service from memory or disk
space exhaustion. (CVE-2008-2957)

It was discovered that Pidgin did not validate SSL certificates when
using a secure connection. If a remote attacker were able to perform a
man-in-the-middle attack, this flaw could be exploited to view
sensitive information. This update alters Pidgin behaviour by asking
users to confirm the validity of a certificate upon initial login.
(CVE-2008-3532).

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:M/Au:N/C:P/I:P/A:P");
  script_cwe_id(20, 189, 310);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:finch");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:finch-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:gaim");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libpurple-bin");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libpurple-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libpurple0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:pidgin");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:pidgin-data");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:pidgin-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:pidgin-dev");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:7.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:8.04:-:lts");

  script_set_attribute(attribute:"patch_publication_date", value:"2008/11/24");
  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) 2008-2016 Canonical, Inc. / NASL script (C) 2009-2016 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:"^(7\.10|8\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 7.10 / 8.04", "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:"7.10", pkgname:"finch", pkgver:"2.2.1-1ubuntu4.3")) flag++;
if (ubuntu_check(osver:"7.10", pkgname:"finch-dev", pkgver:"2.2.1-1ubuntu4.3")) flag++;
if (ubuntu_check(osver:"7.10", pkgname:"gaim", pkgver:"2.2.1-1ubuntu4.3")) flag++;
if (ubuntu_check(osver:"7.10", pkgname:"libpurple-bin", pkgver:"2.2.1-1ubuntu4.3")) flag++;
if (ubuntu_check(osver:"7.10", pkgname:"libpurple-dev", pkgver:"2.2.1-1ubuntu4.3")) flag++;
if (ubuntu_check(osver:"7.10", pkgname:"libpurple0", pkgver:"2.2.1-1ubuntu4.3")) flag++;
if (ubuntu_check(osver:"7.10", pkgname:"pidgin", pkgver:"1:2.2.1-1ubuntu4.3")) flag++;
if (ubuntu_check(osver:"7.10", pkgname:"pidgin-data", pkgver:"2.2.1-1ubuntu4.3")) flag++;
if (ubuntu_check(osver:"7.10", pkgname:"pidgin-dbg", pkgver:"2.2.1-1ubuntu4.3")) flag++;
if (ubuntu_check(osver:"7.10", pkgname:"pidgin-dev", pkgver:"2.2.1-1ubuntu4.3")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"finch", pkgver:"2.4.1-1ubuntu2.2")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"finch-dev", pkgver:"2.4.1-1ubuntu2.2")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"gaim", pkgver:"2.4.1-1ubuntu2.2")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"libpurple-bin", pkgver:"2.4.1-1ubuntu2.2")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"libpurple-dev", pkgver:"2.4.1-1ubuntu2.2")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"libpurple0", pkgver:"2.4.1-1ubuntu2.2")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"pidgin", pkgver:"1:2.4.1-1ubuntu2.2")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"pidgin-data", pkgver:"2.4.1-1ubuntu2.2")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"pidgin-dbg", pkgver:"2.4.1-1ubuntu2.2")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"pidgin-dev", pkgver:"2.4.1-1ubuntu2.2")) 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, "finch / finch-dev / gaim / libpurple-bin / libpurple-dev / etc");
}