Oracle Linux 6 : openldap (ELSA-2014-0126)

2014-02-04T00:00:00
ID ORACLELINUX_ELSA-2014-0126.NASL
Type nessus
Reporter This script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2020-07-02T00:00:00

Description

From Red Hat Security Advisory 2014:0126 :

Updated openldap packages that fix one security issue and one bug are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

OpenLDAP is an open source suite of Lightweight Directory Access Protocol (LDAP) applications and development tools. LDAP is a set of protocols used to access and maintain distributed directory information services over an IP network. The openldap package contains configuration files, libraries, and documentation for OpenLDAP.

A denial of service flaw was found in the way the OpenLDAP server daemon (slapd) performed reference counting when using the rwm (rewrite/remap) overlay. A remote attacker able to query the OpenLDAP server could use this flaw to crash the server by immediately unbinding from the server after sending a search request. (CVE-2013-4449)

Red Hat would like to thank Michael Vishchers from Seven Principles AG for reporting this issue.

This update also fixes the following bug :

  • Previously, OpenLDAP did not properly handle a number of simultaneous updates. As a consequence, sending a number of parallel update requests to the server could cause a deadlock. With this update, a superfluous locking mechanism causing the deadlock has been removed, thus fixing the bug. (BZ#1056124)

All openldap users are advised to upgrade to these updated packages, which contain backported patches to correct these issues.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2014:0126 and 
# Oracle Linux Security Advisory ELSA-2014-0126 respectively.
#

include("compat.inc");

if (description)
{
  script_id(72271);
  script_version("1.11");
  script_cvs_date("Date: 2019/09/30 10:58:18");

  script_cve_id("CVE-2013-4449");
  script_bugtraq_id(63190);
  script_xref(name:"RHSA", value:"2014:0126");

  script_name(english:"Oracle Linux 6 : openldap (ELSA-2014-0126)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Oracle Linux host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"From Red Hat Security Advisory 2014:0126 :

Updated openldap packages that fix one security issue and one bug are
now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having
moderate security impact. A Common Vulnerability Scoring System (CVSS)
base score, which gives a detailed severity rating, is available from
the CVE link in the References section.

OpenLDAP is an open source suite of Lightweight Directory Access
Protocol (LDAP) applications and development tools. LDAP is a set of
protocols used to access and maintain distributed directory
information services over an IP network. The openldap package contains
configuration files, libraries, and documentation for OpenLDAP.

A denial of service flaw was found in the way the OpenLDAP server
daemon (slapd) performed reference counting when using the rwm
(rewrite/remap) overlay. A remote attacker able to query the OpenLDAP
server could use this flaw to crash the server by immediately
unbinding from the server after sending a search request.
(CVE-2013-4449)

Red Hat would like to thank Michael Vishchers from Seven Principles AG
for reporting this issue.

This update also fixes the following bug :

* Previously, OpenLDAP did not properly handle a number of
simultaneous updates. As a consequence, sending a number of parallel
update requests to the server could cause a deadlock. With this
update, a superfluous locking mechanism causing the deadlock has been
removed, thus fixing the bug. (BZ#1056124)

All openldap users are advised to upgrade to these updated packages,
which contain backported patches to correct these issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2014-February/003939.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected openldap packages."
  );
  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:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:openldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:openldap-clients");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:openldap-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:openldap-servers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:openldap-servers-sql");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:6");

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/02/05");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/02/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/02/04");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Oracle Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/OracleLinux", "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);
if (!get_kb_item("Host/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux");
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux");
os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 6", "Oracle Linux " + 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, "Oracle Linux", cpu);

flag = 0;
if (rpm_check(release:"EL6", reference:"openldap-2.4.23-34.el6_5.1")) flag++;
if (rpm_check(release:"EL6", reference:"openldap-clients-2.4.23-34.el6_5.1")) flag++;
if (rpm_check(release:"EL6", reference:"openldap-devel-2.4.23-34.el6_5.1")) flag++;
if (rpm_check(release:"EL6", reference:"openldap-servers-2.4.23-34.el6_5.1")) flag++;
if (rpm_check(release:"EL6", reference:"openldap-servers-sql-2.4.23-34.el6_5.1")) 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, "openldap / openldap-clients / openldap-devel / openldap-servers / etc");
}