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Fencer Intel
medium 4.3

CVE-2012-2668 json

libraries/libldap/tls_m.c in OpenLDAP, possibly 2.4.31 and earlier, when using the Mozilla NSS backend, always uses the default cipher suit…

published 2012-06-17 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-2651

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.9%
EPSS 3.9% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

libraries/libldap/tls_m.c in OpenLDAP, possibly 2.4.31 and earlier, when using the Mozilla NSS backend, always uses the default cipher suite even when TLSCipherSuite is set, which might cause OpenLDAP to use weaker ciphers than intended and make it easier for remote attackers to obtain sensitive information.

Patch / fix

  • openldap RHEL 6 2.4.23-26.el6_3.2
  • openldap-clients RHEL 6 2.4.23-26.el6_3.2
  • openldap-servers RHEL 6 2.4.23-26.el6_3.2
  • openldap-servers-sql RHEL 6 2.4.23-26.el6_3.2

red hat advisories RHSA-2012:1151

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-2012-2668 updated cvss 5.0

openldap: does not honor TLSCipherSuite settings

  • Red Hat Enterprise Linux Desktop (v. 6) openldap 2.4.23-26.el6_3.2, openldap-clients 2.4.23-26.el6_3.2 Red Hat Enterprise Linux Desktop Optional (v. 6) openldap 2.4.23-26.el6_3.2, openldap-servers 2.4.23-26.el6_3.2, openldap-servers-sql 2.4.23-26.el6_3.2 Red Hat Enterprise Linux HPC Node (v. 6) openldap 2.4.23-26.el6_3.2, openldap-clients 2.4.23-26.el6_3.2 Red Hat Enterprise Linux HPC Node Optional (v. 6) openldap 2.4.23-26.el6_3.2, openldap-servers 2.4.23-26.el6_3.2, openldap-servers-sql 2.4.23-26.el6_3.2 Red Hat Enterprise Linux Server (v. 6) openldap 2.4.23-26.el6_3.2, openldap-clients 2.4.23-26.el6_3.2, openldap-servers 2.4.23-26.el6_3.2 Red Hat Enterprise Linux Server Optional (v. 6) openldap 2.4.23-26.el6_3.2, openldap-servers-sql 2.4.23-26.el6_3.2
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 6) openldap 2.4.23-26.el6_3.2, openldap-clients 2.4.23-26.el6_3.2, openldap-servers 2.4.23-26.el6_3.2 Red Hat Enterprise Linux Workstation Optional (v. 6) openldap 2.4.23-26.el6_3.2, openldap-servers-sql 2.4.23-26.el6_3.2
    fixed: vendor fix RHSA-2012:1151
  • 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

3.91% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

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.