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Fencer Vulns
high 7.5

CVE-2018-1089 json

389-ds-base before versions 1.4.0.9, 1.3.8.1, 1.3.6.15 did not properly handle long search filters with characters needing escapes, possibl…

published 2018-05-09 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-11739

cvss
7.5
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
4.0%
EPSS 4.0% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

389-ds-base before versions 1.4.0.9, 1.3.8.1, 1.3.6.15 did not properly handle long search filters with characters needing escapes, possibly leading to buffer overflows. A remote, unauthenticated attacker could potentially use this flaw to make ns-slapd crash via a specially crafted LDAP request, thus resulting in denial of service.

Patch / fix

  • fedoraproject 389_directory_server 1.3.6.15, 1.4.0.9
  • 389-ds-base Debian 13, Debian 12 1.3.8.2-1

debian advisories DEBIAN-CVE-2018-1089

  • 389-ds-base RHEL 6 1.2.11.15-95.el6_9
  • 389-ds-base-libs RHEL 6 1.2.11.15-95.el6_9
  • 389-ds-base RHEL 7 1.3.7.5-21.el7_5
  • 389-ds-base-libs RHEL 7 1.3.7.5-21.el7_5
  • 389-ds-base-snmp RHEL 7 1.3.7.5-21.el7_5

red hat advisories RHSA-2018:1364RHSA-2018:1380

  • 389-ds SLE Module for Server Applications 15 SP1, SLE Module for Server Applications 15 1.4.0.26~git0.8a2d3de6f-4.14.1

suse advisories SUSE-SU-2019:2155-1

  • 389-ds openSUSE Tumbleweed 2.0.10~git0.21dd2802c-1.1

opensuse advisories openSUSE-SU-2024:10593-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-1089 updated cvss 7.5

389-ds-base: ns-slapd crash via large filter value in ldapsearch

  • Red Hat Enterprise Linux Client Optional (v. 7) 389-ds-base 1.3.7.5-21.el7_5, 389-ds-base-libs 1.3.7.5-21.el7_5, 389-ds-base-snmp 1.3.7.5-21.el7_5 Red Hat Enterprise Linux ComputeNode Optional (v. 7) 389-ds-base 1.3.7.5-21.el7_5, 389-ds-base-libs 1.3.7.5-21.el7_5, 389-ds-base-snmp 1.3.7.5-21.el7_5
    fixed: vendor fix RHSA-2018:1380
  • Red Hat Enterprise Linux Desktop Optional (v. 6) 389-ds-base 1.2.11.15-95.el6_9, 389-ds-base-libs 1.2.11.15-95.el6_9
    fixed: vendor fix RHSA-2018:1364
  • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) 389-ds-base 1.3.7.5-21.el7_5, 389-ds-base-libs 1.3.7.5-21.el7_5 Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) 389-ds-base 1.3.7.5-21.el7_5, 389-ds-base-libs 1.3.7.5-21.el7_5, 389-ds-base-snmp 1.3.7.5-21.el7_5
    fixed: vendor fix RHSA-2018:1380
  • Red Hat Enterprise Linux HPC Node Optional (v. 6) 389-ds-base 1.2.11.15-95.el6_9, 389-ds-base-libs 1.2.11.15-95.el6_9 Red Hat Enterprise Linux Server (v. 6) 389-ds-base 1.2.11.15-95.el6_9, 389-ds-base-libs 1.2.11.15-95.el6_9
    fixed: vendor fix RHSA-2018:1364
  • Red Hat Enterprise Linux Server (v. 7) 389-ds-base 1.3.7.5-21.el7_5, 389-ds-base-libs 1.3.7.5-21.el7_5
    fixed: vendor fix RHSA-2018:1380
  • Red Hat Enterprise Linux Server Optional (v. 6) 389-ds-base-devel 1.2.11.15-95.el6_9, 389-ds-base-debuginfo 1.2.11.15-95.el6_9
    fixed: vendor fix RHSA-2018:1364
  • Red Hat Enterprise Linux Server Optional (v. 7) 389-ds-base 1.3.7.5-21.el7_5, 389-ds-base-libs 1.3.7.5-21.el7_5, 389-ds-base-snmp 1.3.7.5-21.el7_5
    fixed: vendor fix RHSA-2018:1380
  • Red Hat Enterprise Linux Workstation (v. 6) 389-ds-base 1.2.11.15-95.el6_9, 389-ds-base-libs 1.2.11.15-95.el6_9
    fixed: vendor fix RHSA-2018:1364
show 4 more
  • Red Hat Enterprise Linux Workstation (v. 7) 389-ds-base 1.3.7.5-21.el7_5, 389-ds-base-libs 1.3.7.5-21.el7_5
    fixed: vendor fix RHSA-2018:1380
  • Red Hat Enterprise Linux Workstation Optional (v. 6) 389-ds-base-devel 1.2.11.15-95.el6_9, 389-ds-base-debuginfo 1.2.11.15-95.el6_9
    fixed: vendor fix RHSA-2018:1364
  • Red Hat Enterprise Linux Workstation Optional (v. 7) 389-ds-base-snmp 1.3.7.5-21.el7_5
    fixed: vendor fix RHSA-2018:1380
  • Red Hat Enterprise Linux 8 389-ds-base, cockpit-389-ds, python3-lib389, 389-ds-base-libs, 389-ds-base-snmp, 389-ds-base-legacy-tools
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

4.01% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

  • unspecified 389-ds-base

Classification

Weakness
  • CWE-122 Heap-based Buffer Overflow
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.