Fedora 19 : krb5-1.11.3-13.fc19 (2013-21786)

2013-12-04T00:00:00
ID FEDORA_2013-21786.NASL
Type nessus
Reporter Tenable
Modified 2015-10-19T00:00:00

Description

This update incorporates a fix for a bug which could cause clients which attempted to contact servers using TCP to become wedge. This update incorporates fixes for a possible remotely-triggered crash in KDCs which are configured to serve multiple realms at once (CVE-2013-1418), and another which could occur while the KDC processed certain requests using referrals (CVE-2013-1417).

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory 2013-21786.
#

include("compat.inc");

if (description)
{
  script_id(71181);
  script_version("$Revision: 1.5 $");
  script_cvs_date("$Date: 2015/10/19 21:37:39 $");

  script_cve_id("CVE-2013-1417", "CVE-2013-1418");
  script_bugtraq_id(63555, 63832);
  script_xref(name:"FEDORA", value:"2013-21786");

  script_name(english:"Fedora 19 : krb5-1.11.3-13.fc19 (2013-21786)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Fedora host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update incorporates a fix for a bug which could cause clients
which attempted to contact servers using TCP to become wedge. This
update incorporates fixes for a possible remotely-triggered crash in
KDCs which are configured to serve multiple realms at once
(CVE-2013-1418), and another which could occur while the KDC processed
certain requests using referrals (CVE-2013-1417).

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.redhat.com/show_bug.cgi?id=1026942"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.redhat.com/show_bug.cgi?id=1030743"
  );
  # https://lists.fedoraproject.org/pipermail/package-announce/2013-December/123064.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?89c55a76"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected krb5 package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:ND/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:krb5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:19");

  script_set_attribute(attribute:"patch_publication_date", value:"2013/11/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/12/04");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2015 Tenable Network Security, Inc.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! ereg(pattern:"^19([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 19.x", "Fedora " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);

flag = 0;
if (rpm_check(release:"FC19", reference:"krb5-1.11.3-13.fc19")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "krb5");
}