RedHat Update for krb5 RHSA-2011:0199-01

# SPDX-FileCopyrightText: 2011 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_xref(name:"URL", value:"https://www.redhat.com/archives/rhsa-announce/2011-February/msg00004.html");
  script_oid("1.3.6.1.4.1.25623.1.0.870391");
  script_version("2024-03-21T05:06:54+0000");
  script_tag(name:"last_modification", value:"2024-03-21 05:06:54 +0000 (Thu, 21 Mar 2024)");
  script_tag(name:"creation_date", value:"2011-02-11 13:26:17 +0100 (Fri, 11 Feb 2011)");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_xref(name:"RHSA", value:"2011:0199-01");
  script_cve_id("CVE-2011-0281", "CVE-2011-0282");
  script_name("RedHat Update for krb5 RHSA-2011:0199-01");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'krb5'
  package(s) announced via the referenced advisory.");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2011 Greenbone AG");
  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_5");
  script_tag(name:"affected", value:"krb5 on Red Hat Enterprise Linux (v. 5 server)");
  script_tag(name:"solution", value:"Please Install the Updated Packages.");
  script_tag(name:"insight", value:"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 found in the way the MIT Kerberos KDC
  processed principal names that were not null terminated, when the KDC was
  configured to use an LDAP back end. A remote attacker could use this flaw
  to crash the KDC via a specially-crafted request. (CVE-2011-0282)

  A denial of service flaw was found in the way the MIT Kerberos KDC
  processed certain principal names when the KDC was configured to use an
  LDAP back end. A remote attacker could use this flaw to cause the KDC to
  hang via a specially-crafted request. (CVE-2011-0281)

  Red Hat would like to thank the MIT Kerberos Team for reporting these
  issues. Upstream acknowledges Kevin Longfellow of Oracle Corporation as the
  original reporter of the CVE-2011-0281 issue.

  All krb5 users should upgrade to these updated packages, which contain a
  backported patch to correct these issues. After installing the updated
  packages, the krb5kdc daemon will be restarted automatically.");
  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_5")
{

  if ((res = isrpmvuln(pkg:"krb5-debuginfo", rpm:"krb5-debuginfo~1.6.1~55.el5_6.1", rls:"RHENT_5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"krb5-devel", rpm:"krb5-devel~1.6.1~55.el5_6.1", rls:"RHENT_5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"krb5-libs", rpm:"krb5-libs~1.6.1~55.el5_6.1", rls:"RHENT_5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"krb5-server", rpm:"krb5-server~1.6.1~55.el5_6.1", rls:"RHENT_5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"krb5-server-ldap", rpm:"krb5-server-ldap~1.6.1~55.el5_6.1", rls:"RHENT_5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"krb5-workstation", rpm:"krb5-workstation~1.6.1~55.el5_6.1", rls:"RHENT_5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

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