Scientific Linux Security Update : bind-dyndb-ldap on SL6.x i386/x86_64

2012-08-06T00:00:00
ID SL_20120803_BIND_DYNDB_LDAP_ON_SL6_X.NASL
Type nessus
Reporter Tenable
Modified 2012-08-09T00:00:00

Description

The dynamic LDAP back end is a plug-in for BIND that provides back-end capabilities to LDAP databases. It features support for dynamic updates and internal caching that help to reduce the load on LDAP servers.

A flaw was found in the way bind-dyndb-ldap performed the escaping of names from DNS requests for use in LDAP queries. A remote attacker able to send DNS queries to a named server that is configured to use bind-dyndb-ldap could use this flaw to cause named to exit unexpectedly with an assertion failure. (CVE-2012-3429)

All bind-dyndb-ldap users should upgrade to this updated package, which contains a backported patch to correct this issue. For the update to take effect, the named service must be restarted.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text is (C) Scientific Linux.
#

include("compat.inc");

if (description)
{
  script_id(61426);
  script_version("$Revision: 1.2 $");
  script_cvs_date("$Date: 2012/08/09 10:44:19 $");

  script_cve_id("CVE-2012-3429");

  script_name(english:"Scientific Linux Security Update : bind-dyndb-ldap on SL6.x i386/x86_64");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Scientific Linux host is missing one or more security
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The dynamic LDAP back end is a plug-in for BIND that provides back-end
capabilities to LDAP databases. It features support for dynamic
updates and internal caching that help to reduce the load on LDAP
servers.

A flaw was found in the way bind-dyndb-ldap performed the escaping of
names from DNS requests for use in LDAP queries. A remote attacker
able to send DNS queries to a named server that is configured to use
bind-dyndb-ldap could use this flaw to cause named to exit
unexpectedly with an assertion failure. (CVE-2012-3429)

All bind-dyndb-ldap users should upgrade to this updated package,
which contains a backported patch to correct this issue. For the
update to take effect, the named service must be restarted."
  );
  # http://listserv.fnal.gov/scripts/wa.exe?A2=ind1208&L=scientific-linux-errata&T=0&P=733
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?ac368443"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Update the affected bind-dyndb-ldap and / or bind-dyndb-ldap-debuginfo
packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2012/08/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/08/06");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012 Tenable Network Security, Inc.");
  script_family(english:"Scientific Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "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) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux");
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 (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu);


flag = 0;
if (rpm_check(release:"SL6", reference:"bind-dyndb-ldap-1.1.0-0.9.b1.el6_3.1")) flag++;
if (rpm_check(release:"SL6", reference:"bind-dyndb-ldap-debuginfo-1.1.0-0.9.b1.el6_3.1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");