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RockyLinux 10 : 389-ds-base (RLSA-2026:26456)

🗓️ 20 Jun 2026 00:00:00Reported by TenableType 
nessus
 nessus
🔗 www.tenable.com👁 5 Views

389-ds-base remote DoS via unbounded LDAP controls (CVE-2026-9064) on Rocky Linux 10.

Related
Refs
Code
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# Rocky Linux Security Advisory RLSA-2026:26456.
##

include('compat.inc');

if (description)
{
  script_id(321757);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/06/20");

  script_cve_id("CVE-2026-9064");
  script_xref(name:"RLSA", value:"2026:26456");

  script_name(english:"RockyLinux 10 : 389-ds-base (RLSA-2026:26456)");

  script_set_attribute(attribute:"synopsis", value:
"The remote RockyLinux host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The remote RockyLinux 10 host has packages installed that are affected by a vulnerability as referenced in the
RLSA-2026:26456 advisory.

    * 389-ds-base: 389-ds-base: unbounded LDAP controls count in get_ldapmessage_controls_ext() causes CPU and
    heap amplification (remote DoS) (CVE-2026-9064)

    Bug Fix(es) and Enhancement(s):

    * DS 12 does not handle escape char in bind user [rhel-10.2.z] (JIRA:Rocky Linux-170271)

    * dnaSharedConfig: dnaPortNum: 0 [rhel-10.2.z] (JIRA:Rocky Linux-170276)

    * Memory leaks in syncrepl plugin during persistent search operations [rhel-10.2.z] (JIRA:Rocky
    Linux-170281)

    * access log - suspicious wtime  optime negative and large values in internal op [rhel-10.2.z] (JIRA:Rocky
    Linux-170363)

    * An online reinitialization with LMDB is terminating the receiving server [rhel-10.2.z] (JIRA:Rocky
    Linux-170478)

    * dsctl healthcheck DSMOLE0001 inaccurate recommendations when there is more than 1 LDAP backend
    [rhel-10.2.z] (JIRA:Rocky Linux-170481)

    * Possible memory leak when using the Retro Changelog plugin. [rhel-10.2.z] (JIRA:Rocky Linux-170515)

    * [RFE] Add OS-level thread names to all server threads [rhel-10.2.z] (JIRA:Rocky Linux-174526)

    * Online export is failing when using the option -s [rhel-10.2.z] (JIRA:Rocky Linux-180718)

    * Server shutdown during online reindex may lead to data loss [rhel-10.2.z] (JIRA:Rocky Linux-183897)

    * Error: NssSsl.add_cert() got an unexpected keyword argument 'input_file' [rhel-10.2.z] (JIRA:Rocky
    Linux-183898)

    * Replication errors in logs [rhel-10.2.z] (JIRA:Rocky Linux-183899)

    * Substring index produces empty results and can crash when non-default nsSubStrBegin/nsSubStrEnd lengths
    are configured [rhel-10.2.z] (JIRA:Rocky Linux-183900)

Tenable has extracted the preceding description block directly from the RockyLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://errata.rockylinux.org/RLSA-2026:26456");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2480093");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-9064");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/05/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/06/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/06/20");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:389-ds-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:389-ds-base-bdb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:389-ds-base-bdb-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:389-ds-base-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:389-ds-base-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:389-ds-base-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:389-ds-base-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:389-ds-base-libs-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:389-ds-base-snmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:389-ds-base-snmp-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:python3-lib389");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:rocky:linux:10");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Rocky Linux Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}


include('rpm2.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_product = get_kb_item('installed_os/local/SSH/0/product');
if (isnull(os_product) || 'Rocky Linux' >!< os_product) audit(AUDIT_OS_NOT, 'Rocky Linux');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'Rocky Linux');
if (! preg(pattern:"^10([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'RockyLinux 10.x', 'Rocky Linux ' + os_version);

if (!get_kb_item('Host/RockyLinux/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('aarch64' >!< cpu && 'ppc' >!< cpu && 's390' >!< cpu && 'x86_64' >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Rocky Linux', cpu);

var constraints = [
  {
    'release': '10',
    'pkgs': [
      {'reference':'389-ds-base-3.2.0-7.el10_2', 'cpu':'aarch64', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-3.2.0-7.el10_2', 'cpu':'ppc64le', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-3.2.0-7.el10_2', 'cpu':'s390x', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-3.2.0-7.el10_2', 'cpu':'x86_64', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-bdb-3.2.0-7.el10_2', 'cpu':'aarch64', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-bdb-3.2.0-7.el10_2', 'cpu':'ppc64le', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-bdb-3.2.0-7.el10_2', 'cpu':'s390x', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-bdb-3.2.0-7.el10_2', 'cpu':'x86_64', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-bdb-debuginfo-3.2.0-7.el10_2', 'cpu':'aarch64', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-bdb-debuginfo-3.2.0-7.el10_2', 'cpu':'ppc64le', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-bdb-debuginfo-3.2.0-7.el10_2', 'cpu':'s390x', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-bdb-debuginfo-3.2.0-7.el10_2', 'cpu':'x86_64', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-debuginfo-3.2.0-7.el10_2', 'cpu':'aarch64', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-debuginfo-3.2.0-7.el10_2', 'cpu':'ppc64le', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-debuginfo-3.2.0-7.el10_2', 'cpu':'s390x', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-debuginfo-3.2.0-7.el10_2', 'cpu':'x86_64', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-debugsource-3.2.0-7.el10_2', 'cpu':'aarch64', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-debugsource-3.2.0-7.el10_2', 'cpu':'ppc64le', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-debugsource-3.2.0-7.el10_2', 'cpu':'s390x', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-debugsource-3.2.0-7.el10_2', 'cpu':'x86_64', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-devel-3.2.0-7.el10_2', 'cpu':'aarch64', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-devel-3.2.0-7.el10_2', 'cpu':'ppc64le', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-devel-3.2.0-7.el10_2', 'cpu':'s390x', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-devel-3.2.0-7.el10_2', 'cpu':'x86_64', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-libs-3.2.0-7.el10_2', 'cpu':'aarch64', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-libs-3.2.0-7.el10_2', 'cpu':'ppc64le', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-libs-3.2.0-7.el10_2', 'cpu':'s390x', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-libs-3.2.0-7.el10_2', 'cpu':'x86_64', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-libs-debuginfo-3.2.0-7.el10_2', 'cpu':'aarch64', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-libs-debuginfo-3.2.0-7.el10_2', 'cpu':'ppc64le', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-libs-debuginfo-3.2.0-7.el10_2', 'cpu':'s390x', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-libs-debuginfo-3.2.0-7.el10_2', 'cpu':'x86_64', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-snmp-3.2.0-7.el10_2', 'cpu':'aarch64', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-snmp-3.2.0-7.el10_2', 'cpu':'ppc64le', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-snmp-3.2.0-7.el10_2', 'cpu':'s390x', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-snmp-3.2.0-7.el10_2', 'cpu':'x86_64', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-snmp-debuginfo-3.2.0-7.el10_2', 'cpu':'aarch64', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-snmp-debuginfo-3.2.0-7.el10_2', 'cpu':'ppc64le', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-snmp-debuginfo-3.2.0-7.el10_2', 'cpu':'s390x', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'389-ds-base-snmp-debuginfo-3.2.0-7.el10_2', 'cpu':'x86_64', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'python3-lib389-3.2.0-7.el10_2', 'el_string':'el10_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'}
    ]
  }
];

var os_release = get_one_kb_item('installed_os/local/SSH/0/release');
var os_sp = get_one_kb_item('Host/*/minor_release');

var flag = 0;
var reference;
var sp;
var _cpu;
var el_string;
var rpm_spec_vers_cmp;
var epoch;
var allowmaj;
var exists_check;
var cves;
foreach var constraint ( constraints ) {
  # Check that the target release is equal to the affected release
  if (!empty_or_null(constraint['release'])){
    if (constraint['release'] != os_release) continue;
  }
  if (!empty_or_null(constraint['sp'])){
    if (constraint['sp'] != os_sp) continue;
  }
  foreach var pkg ( constraint['pkgs'] ) {
    reference = NULL;
    sp = NULL;
    _cpu = NULL;
    el_string = NULL;
    rpm_spec_vers_cmp = NULL;
    epoch = NULL;
    allowmaj = NULL;
    exists_check = NULL;
    cves = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
    if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
    if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
    if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
    if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
    if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
    if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
    if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
    if (reference &&
        ## (no known rpm to check OR known rpm_exists)
        (!exists_check || rpm_exists(rpm:exists_check)) &&
        rpm_check(sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj, cves:cves)) flag++;
  }
}
if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, '389-ds-base / 389-ds-base-bdb / 389-ds-base-bdb-debuginfo / etc');
}

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20 Jun 2026 00:00Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17.5
EPSS0.00815
SSVC
5