Ubuntu Update for libpng USN-1175-1

###############################################################################
# OpenVAS Vulnerability Test
# $Id: gb_ubuntu_USN_1175_1.nasl 7964 2017-12-01 07:32:11Z santu $
#
# Ubuntu Update for libpng USN-1175-1
#
# Authors:
# System Generated Check
#
# Copyright:
# Copyright (c) 2011 Greenbone Networks GmbH, http://www.greenbone.net
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
# (or any later version), as published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
###############################################################################

include("revisions-lib.inc");
tag_insight = "Frank Busse discovered that libpng did not properly handle certain
  malformed PNG images. If a user or automated system were tricked into
  opening a crafted PNG file, an attacker could cause libpng to crash,
  resulting in a denial of service. This issue only affected Ubuntu
  10.04 LTS, 10.10, and 11.04. (CVE-2011-2501)

  It was discovered that libpng did not properly handle certain malformed PNG
  images. If a user or automated system were tricked into opening a crafted
  PNG file, an attacker could cause a denial of service or possibly execute
  arbitrary code with the privileges of the user invoking the program.
  (CVE-2011-2690)
  
  Frank Busse discovered that libpng did not properly handle certain PNG
  images with invalid sCAL chunks. If a user or automated system were tricked
  into opening a crafted PNG file, an attacker could cause a denial of
  service or possibly execute arbitrary code with the privileges of the user
  invoking the program. (CVE-2011-2692)";

tag_summary = "Ubuntu Update for Linux kernel vulnerabilities USN-1175-1";
tag_affected = "libpng on Ubuntu 11.04 ,
  Ubuntu 10.10 ,
  Ubuntu 10.04 LTS ,
  Ubuntu 8.04 LTS";
tag_solution = "Please Install the Updated Packages.";


if(description)
{
  script_xref(name: "URL" , value: "http://www.ubuntu.com/usn/usn-1175-1/");
  script_id(840714);
  script_version("$Revision: 7964 $");
  script_tag(name:"last_modification", value:"$Date: 2017-12-01 08:32:11 +0100 (Fri, 01 Dec 2017) $");
  script_tag(name:"creation_date", value:"2011-08-02 09:08:31 +0200 (Tue, 02 Aug 2011)");
  script_tag(name:"cvss_base", value:"6.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_xref(name: "USN", value: "1175-1");
  script_cve_id("CVE-2011-2501", "CVE-2011-2690", "CVE-2011-2692");
  script_name("Ubuntu Update for libpng USN-1175-1");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (c) 2011 Greenbone Networks GmbH");
  script_family("Ubuntu Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/ubuntu_linux", "ssh/login/packages");
  script_tag(name : "summary" , value : tag_summary);
  script_tag(name : "affected" , value : tag_affected);
  script_tag(name : "solution" , value : tag_solution);
  script_tag(name : "insight" , value : tag_insight);
  script_tag(name:"qod_type", value:"package");
  script_tag(name:"solution_type", value:"VendorFix");
  exit(0);
}


include("pkg-lib-deb.inc");

release = get_kb_item("ssh/login/release");


res = "";
if(release == NULL){
  exit(0);
}

if(release == "UBUNTU10.10")
{

  if ((res = isdpkgvuln(pkg:"libpng12-0", ver:"1.2.44-1ubuntu0.1", rls:"UBUNTU10.10")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if (__pkg_match) exit(99); # Not vulnerable.
  exit(0);
}


if(release == "UBUNTU10.04 LTS")
{

  if ((res = isdpkgvuln(pkg:"libpng12-0", ver:"1.2.42-1ubuntu2.2", rls:"UBUNTU10.04 LTS")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if (__pkg_match) exit(99); # Not vulnerable.
  exit(0);
}


if(release == "UBUNTU11.04")
{

  if ((res = isdpkgvuln(pkg:"libpng12-0", ver:"1.2.44-1ubuntu3.1", rls:"UBUNTU11.04")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if (__pkg_match) exit(99); # Not vulnerable.
  exit(0);
}


if(release == "UBUNTU8.04 LTS")
{

  if ((res = isdpkgvuln(pkg:"libpng12-0", ver:"1.2.15~beta5-3ubuntu0.4", rls:"UBUNTU8.04 LTS")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if (__pkg_match) exit(99); # Not vulnerable.
  exit(0);
}