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Fencer Intel
low 2.6

CVE-2012-1164 json

slapd in OpenLDAP before 2.4.30 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via an LDAP search…

published 2012-06-29 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-1194

cvss
2.6
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.5%
EPSS 3.5% chance of exploitation in 30 days, percentile 89%
public exploits
0
none known

Summary

slapd in OpenLDAP before 2.4.30 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via an LDAP search query with attrsOnly set to true, which causes empty attributes to be returned.

Patch / fix

  • openldap Debian 14, Debian 13, Debian 12 2.4.31-1

debian advisories DEBIAN-CVE-2012-1164

  • openldap RHEL 6 2.4.23-26.el6
  • openldap-clients RHEL 6 2.4.23-26.el6
  • openldap-servers RHEL 6 2.4.23-26.el6
  • openldap-servers-sql RHEL 6 2.4.23-26.el6

red hat advisories RHSA-2012:0899

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-2012-1164 updated cvss 5.0

(slapd): Assertion failure by processing search queries requesting only attributes for particular entry

  • Red Hat Enterprise Linux Desktop (v. 6) openldap 2.4.23-26.el6, openldap-clients 2.4.23-26.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) openldap 2.4.23-26.el6, openldap-servers 2.4.23-26.el6, openldap-servers-sql 2.4.23-26.el6 Red Hat Enterprise Linux HPC Node (v. 6) openldap 2.4.23-26.el6, openldap-clients 2.4.23-26.el6 Red Hat Enterprise Linux HPC Node Optional (v. 6) openldap 2.4.23-26.el6, openldap-servers 2.4.23-26.el6, openldap-servers-sql 2.4.23-26.el6 Red Hat Enterprise Linux Server (v. 6) openldap 2.4.23-26.el6, openldap-clients 2.4.23-26.el6, openldap-servers 2.4.23-26.el6 Red Hat Enterprise Linux Server Optional (v. 6) openldap 2.4.23-26.el6, openldap-servers-sql 2.4.23-26.el6
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 6) openldap 2.4.23-26.el6, openldap-clients 2.4.23-26.el6, openldap-servers 2.4.23-26.el6 Red Hat Enterprise Linux Workstation Optional (v. 6) openldap 2.4.23-26.el6, openldap-servers-sql 2.4.23-26.el6
    fixed: vendor fix RHSA-2012:0899
  • 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

3.54% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 2.6 AV:N/AC:H/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Intel 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.