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Fencer Vulns
medium 6.5

CVE-2017-9287 json

servers/slapd/back-mdb/search.c in OpenLDAP through 2.4.44 is prone to a double free vulnerability.

published 2017-05-29 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-18223

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
7.1%
EPSS 7.1% chance of exploitation in 30 days, percentile 94%
public exploits
0
none known

Summary

servers/slapd/back-mdb/search.c in OpenLDAP through 2.4.44 is prone to a double free vulnerability. A user with access to search the directory can crash slapd by issuing a search including the Paged Results control with a page size of 0.

Patch / fix

  • mcafee policy_auditor 6.5.1
  • oracle blockchain_platform 21.1.2
  • openldap Debian 14, Debian 13, Debian 12 2.4.44+dfsg-5

debian advisories DEBIAN-CVE-2017-9287

  • openldap Ubuntu 14.04 LTS 2.4.31-1+nmu2ubuntu8.4
  • openldap Ubuntu 16.04 LTS 2.4.42+dfsg-2ubuntu3.2

ubuntu advisories UBUNTU-CVE-2017-9287

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • openldap RHEL 7 2.4.44-5.el7
  • openldap-clients RHEL 7 2.4.44-5.el7
  • openldap-servers RHEL 7 2.4.44-5.el7
  • openldap-servers-sql RHEL 7 2.4.44-5.el7

red hat advisories RHSA-2017:1852

  • openldap2 SLES for SAP 12 SP4, SLES for SAP 12 SP3, SLES for SAP 12 SP2 +5 more 2.4.41-18.24.9.7
  • openldap2 SLES for SAP 12 SP2, SLES for Raspberry Pi 12 SP2, SLES 12 SP2 +2 more 2.4.41-18.29.1
  • openldap2-client SLES for SAP 12 SP1, SLES for SAP 12, SLES 12-LTSS +1 more 2.4.41-18.24.9.1

suse advisories SUSE-SU-2019:0931-1SUSE-SU-2017:1567-1

  • openldap Alpine 3.24, Alpine 3.23, Alpine 3.22 +16 more 2.4.44-r5
  • openldap Alpine 3.3 2.4.44-r1
  • openldap Alpine 3.4 2.4.44-r2
  • openldap Alpine 3.5 2.4.44-r4

alpine advisories ALPINE-CVE-2017-9287

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • openldap Arch Linux 2.4.45-1

arch linux advisories AVG-358

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-2017-9287 updated cvss 6.5

openldap: Double free vulnerability in servers/slapd/back-mdb/search.c

  • Red Hat Enterprise Linux 6 openldap, compat-openldap, openldap-clients, openldap-servers, openldap-servers-sql Red Hat JBoss Enterprise Application Platform 5 openldap Red Hat JBoss Enterprise Web Server 1 openldap Red Hat JBoss Enterprise Web Server 2 openldap
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux Client (v. 7) openldap 2.4.44-5.el7, openldap-clients 2.4.44-5.el7 Red Hat Enterprise Linux Client Optional (v. 7) openldap-servers 2.4.44-5.el7, openldap-servers-sql 2.4.44-5.el7 Red Hat Enterprise Linux ComputeNode (v. 7) openldap 2.4.44-5.el7, openldap-clients 2.4.44-5.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) openldap-servers 2.4.44-5.el7, openldap-servers-sql 2.4.44-5.el7 Red Hat Enterprise Linux Server (v. 7) openldap 2.4.44-5.el7, openldap-clients 2.4.44-5.el7, openldap-servers 2.4.44-5.el7 Red Hat Enterprise Linux Server Optional (v. 7) openldap-servers-sql 2.4.44-5.el7
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 7) openldap 2.4.44-5.el7, openldap-clients 2.4.44-5.el7, openldap-servers 2.4.44-5.el7 Red Hat Enterprise Linux Workstation Optional (v. 7) openldap-servers-sql 2.4.44-5.el7
    fixed: vendor fix RHSA-2017:1852
  • Red Hat Enterprise Linux 5 openldap
    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

7.14% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • openldap.org http://www.openldap.org/its/?findid=8655 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:N/I:N/A:P

Classification

Weakness

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.