RedHat Update for krb5 RHSA-2010:0423-01

###############################################################################
# OpenVAS Vulnerability Test
#
# RedHat Update for krb5 RHSA-2010:0423-01
#
# Authors:
# System Generated Check
#
# Copyright:
# Copyright (c) 2010 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 = "Kerberos is a network authentication system which allows clients and
  servers to authenticate to each other using symmetric encryption and a
  trusted third party, the Key Distribution Center (KDC).

  A NULL pointer dereference flaw was discovered in the MIT Kerberos Generic
  Security Service Application Program Interface (GSS-API) library. A remote,
  authenticated attacker could use this flaw to crash any server application
  using the GSS-API authentication mechanism, by sending a specially-crafted
  GSS-API token with a missing checksum field. (CVE-2010-1321)
  
  Red Hat would like to thank the MIT Kerberos Team for responsibly reporting
  this issue. Upstream acknowledges Shawn Emery of Oracle as the original
  reporter.
  
  All krb5 users should upgrade to these updated packages, which contain a
  backported patch to correct this issue. All running services using the MIT
  Kerberos libraries must be restarted for the update to take effect.";

tag_affected = "krb5 on Red Hat Enterprise Linux (v. 5 server),
  Red Hat Enterprise Linux AS version 3,
  Red Hat Enterprise Linux AS version 4,
  Red Hat Enterprise Linux ES version 3,
  Red Hat Enterprise Linux ES version 4,
  Red Hat Enterprise Linux WS version 3,
  Red Hat Enterprise Linux WS version 4";
tag_solution = "Please Install the Updated Packages.";


if(description)
{
  script_xref(name : "URL" , value : "https://www.redhat.com/archives/rhsa-announce/2010-May/msg00008.html");
  script_oid("1.3.6.1.4.1.25623.1.0.870268");
  script_version("$Revision: 8246 $");
  script_tag(name:"last_modification", value:"$Date: 2017-12-26 08:29:20 +0100 (Tue, 26 Dec 2017) $");
  script_tag(name:"creation_date", value:"2010-05-28 10:00:59 +0200 (Fri, 28 May 2010)");
  script_tag(name:"cvss_base", value:"6.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:N/I:N/A:C");
  script_xref(name: "RHSA", value: "2010:0423-01");
  script_cve_id("CVE-2010-1321");
  script_name("RedHat Update for krb5 RHSA-2010:0423-01");

  script_tag(name: "summary" , value: "Check for the Version of krb5");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (c) 2010 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");
  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-rpm.inc");

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


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

if(release == "RHENT_5")
{

  if ((res = isrpmvuln(pkg:"krb5-debuginfo", rpm:"krb5-debuginfo~1.6.1~36.el5_5.4", rls:"RHENT_5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"krb5-devel", rpm:"krb5-devel~1.6.1~36.el5_5.4", rls:"RHENT_5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"krb5-libs", rpm:"krb5-libs~1.6.1~36.el5_5.4", rls:"RHENT_5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"krb5-server", rpm:"krb5-server~1.6.1~36.el5_5.4", rls:"RHENT_5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"krb5-workstation", rpm:"krb5-workstation~1.6.1~36.el5_5.4", rls:"RHENT_5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

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


if(release == "RHENT_4")
{

  if ((res = isrpmvuln(pkg:"krb5-debuginfo", rpm:"krb5-debuginfo~1.3.4~62.el4_8.2", rls:"RHENT_4")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"krb5-devel", rpm:"krb5-devel~1.3.4~62.el4_8.2", rls:"RHENT_4")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"krb5-libs", rpm:"krb5-libs~1.3.4~62.el4_8.2", rls:"RHENT_4")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"krb5-server", rpm:"krb5-server~1.3.4~62.el4_8.2", rls:"RHENT_4")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"krb5-workstation", rpm:"krb5-workstation~1.3.4~62.el4_8.2", rls:"RHENT_4")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

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


if(release == "RHENT_3")
{

  if ((res = isrpmvuln(pkg:"krb5-debuginfo", rpm:"krb5-debuginfo~1.2.7~72", rls:"RHENT_3")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"krb5-devel", rpm:"krb5-devel~1.2.7~72", rls:"RHENT_3")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"krb5-libs", rpm:"krb5-libs~1.2.7~72", rls:"RHENT_3")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"krb5-server", rpm:"krb5-server~1.2.7~72", rls:"RHENT_3")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"krb5-workstation", rpm:"krb5-workstation~1.2.7~72", rls:"RHENT_3")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

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