RedHat Update for libpng RHSA-2011:1105-01

###############################################################################
# OpenVAS Vulnerability Test
#
# RedHat Update for libpng RHSA-2011:1105-01
#
# Authors:
# System Generated Check
#
# Copyright:
# Copyright (c) 2012 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.
###############################################################################

if(description)
{
  script_xref(name:"URL", value:"https://www.redhat.com/archives/rhsa-announce/2011-July/msg00036.html");
  script_oid("1.3.6.1.4.1.25623.1.0.870603");
  script_version("$Revision: 12497 $");
  script_tag(name:"last_modification", value:"$Date: 2018-11-23 09:28:21 +0100 (Fri, 23 Nov 2018) $");
  script_tag(name:"creation_date", value:"2012-07-09 10:32:50 +0530 (Mon, 09 Jul 2012)");
  script_cve_id("CVE-2011-2501", "CVE-2011-2690", "CVE-2011-2692", "CVE-2004-0421");
  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:"RHSA", value:"2011:1105-01");
  script_name("RedHat Update for libpng RHSA-2011:1105-01");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'libpng'
  package(s) announced via the referenced advisory.");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (c) 2012 Greenbone Networks GmbH");
  script_family("Red Hat Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/rhel", "ssh/login/rpms", re:"ssh/login/release=RHENT_6");
  script_tag(name:"affected", value:"libpng on Red Hat Enterprise Linux Desktop (v. 6),
  Red Hat Enterprise Linux Server (v. 6),
  Red Hat Enterprise Linux Workstation (v. 6)");
  script_tag(name:"solution", value:"Please Install the Updated Packages.");
  script_tag(name:"insight", value:"The libpng packages contain a library of functions for creating and
  manipulating PNG (Portable Network Graphics) image format files.

  A buffer overflow flaw was found in the way libpng processed certain PNG
  image files. An attacker could create a specially-crafted PNG image that,
  when opened, could cause an application using libpng to crash or,
  potentially, execute arbitrary code with the privileges of the user running
  the application. (CVE-2011-2690)

  Note: The application behavior required to exploit CVE-2011-2690 is rarely
  used. No application shipped with Red Hat Enterprise Linux behaves this
  way, for example.

  An out-of-bounds memory read flaw was found in the way libpng processed
  certain PNG image files. An attacker could create a specially-crafted PNG
  image that, when opened, could cause an application using libpng to crash.
  (CVE-2011-2501)

  An uninitialized memory read issue was found in the way libpng processed
  certain PNG images that use the Physical Scale (sCAL) extension. An
  attacker could create a specially-crafted PNG image that, when opened,
  could cause an application using libpng to crash. (CVE-2011-2692)

  Users of libpng should upgrade to these updated packages, which upgrade
  libpng to version 1.2.46 to correct these issues. All running applications
  using libpng must be restarted for the update to take effect.");
  script_tag(name:"qod_type", value:"package");
  script_tag(name:"solution_type", value:"VendorFix");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-rpm.inc");

release = rpm_get_ssh_release();
if(!release) exit(0);

res = "";

if(release == "RHENT_6")
{

  if ((res = isrpmvuln(pkg:"libpng", rpm:"libpng~1.2.46~1.el6_1", rls:"RHENT_6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"libpng-debuginfo", rpm:"libpng-debuginfo~1.2.46~1.el6_1", rls:"RHENT_6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"libpng-devel", rpm:"libpng-devel~1.2.46~1.el6_1", rls:"RHENT_6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if (__pkg_match) exit(99);
  exit(0);
}