RedHat Update for krb5 RHSA-2011:0356-01

# SPDX-FileCopyrightText: 2012 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-March/msg00029.html");
  script_oid("1.3.6.1.4.1.25623.1.0.870596");
  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:"2012-06-06 10:31:22 +0530 (Wed, 06 Jun 2012)");
  script_cve_id("CVE-2011-0284");
  script_tag(name:"cvss_base", value:"7.6");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:H/Au:N/C:C/I:C/A:C");
  script_xref(name:"RHSA", value:"2011:0356-01");
  script_name("RedHat Update for krb5 RHSA-2011:0356-01");

  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) 2012 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_6");
  script_tag(name:"affected", value:"krb5 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:"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). The Public Key
  Cryptography for Initial Authentication in Kerberos (PKINIT) capability
  provides support for using public-key authentication with Kerberos.

  A double-free flaw was found in the way the MIT Kerberos KDC handled
  initial authentication requests (AS-REQ), when the KDC was configured to
  provide the PKINIT capability. A remote attacker could use this flaw to
  cause the KDC daemon to abort by using a specially-crafted AS-REQ request.
  (CVE-2011-0284)

  All krb5 users should upgrade to these updated packages, which contain
  a backported patch to correct this issue. 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_6")
{

  if ((res = isrpmvuln(pkg:"krb5-debuginfo", rpm:"krb5-debuginfo~1.8.2~3.el6_0.6", rls:"RHENT_6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"krb5-devel", rpm:"krb5-devel~1.8.2~3.el6_0.6", rls:"RHENT_6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"krb5-libs", rpm:"krb5-libs~1.8.2~3.el6_0.6", rls:"RHENT_6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"krb5-pkinit-openssl", rpm:"krb5-pkinit-openssl~1.8.2~3.el6_0.6", rls:"RHENT_6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"krb5-server", rpm:"krb5-server~1.8.2~3.el6_0.6", rls:"RHENT_6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"krb5-server-ldap", rpm:"krb5-server-ldap~1.8.2~3.el6_0.6", rls:"RHENT_6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"krb5-workstation", rpm:"krb5-workstation~1.8.2~3.el6_0.6", rls:"RHENT_6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

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