The rwm overlay in OpenLDAP 2.4.23, 2.4.36, and earlier does not properly count…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-189 and the CVSS impact.
Summary
The rwm overlay in OpenLDAP 2.4.23, 2.4.36, and earlier does not properly count references, which allows remote attackers to cause a denial of service (slapd crash) by unbinding immediately after a search request, which triggers rwm_conn_destroy to free the session context while it is being used by rwm_op_search.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 33
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:a:openldap:openldap:*:*:*:*:*:*:*:* | up to 2.4.36 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.6:*:*:*:*:*:*:* | 2.4.6 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.7:*:*:*:*:*:*:* | 2.4.7 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.8:*:*:*:*:*:*:* | 2.4.8 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.9:*:*:*:*:*:*:* | 2.4.9 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.10:*:*:*:*:*:*:* | 2.4.10 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.11:*:*:*:*:*:*:* | 2.4.11 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.12:*:*:*:*:*:*:* | 2.4.12 | Vulnerable | openldap |
- cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
- cpe:2.3:a:openldap:openldap:*:*:*:*:*:*:*:* Versions up to 2.4.36 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.6:*:*:*:*:*:*:* Versions 2.4.6 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.7:*:*:*:*:*:*:* Versions 2.4.7 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.8:*:*:*:*:*:*:* Versions 2.4.8 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.9:*:*:*:*:*:*:* Versions 2.4.9 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.10:*:*:*:*:*:*:* Versions 2.4.10 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.11:*:*:*:*:*:*:* Versions 2.4.11 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.12:*:*:*:*:*:*:* Versions 2.4.12 Vulnerable ·openldap
Show 23 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:openldap:openldap:2.4.13:*:*:*:*:*:*:* | 2.4.13 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.14:*:*:*:*:*:*:* | 2.4.14 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.15:*:*:*:*:*:*:* | 2.4.15 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.16:*:*:*:*:*:*:* | 2.4.16 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.17:*:*:*:*:*:*:* | 2.4.17 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.18:*:*:*:*:*:*:* | 2.4.18 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.19:*:*:*:*:*:*:* | 2.4.19 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.20:*:*:*:*:*:*:* | 2.4.20 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.21:*:*:*:*:*:*:* | 2.4.21 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.22:*:*:*:*:*:*:* | 2.4.22 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.23:*:*:*:*:*:*:* | 2.4.23 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.24:*:*:*:*:*:*:* | 2.4.24 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.25:*:*:*:*:*:*:* | 2.4.25 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.26:*:*:*:*:*:*:* | 2.4.26 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.27:*:*:*:*:*:*:* | 2.4.27 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.28:*:*:*:*:*:*:* | 2.4.28 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.29:*:*:*:*:*:*:* | 2.4.29 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.30:*:*:*:*:*:*:* | 2.4.30 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.31:*:*:*:*:*:*:* | 2.4.31 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.32:*:*:*:*:*:*:* | 2.4.32 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.33:*:*:*:*:*:*:* | 2.4.33 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.34:*:*:*:*:*:*:* | 2.4.34 | Vulnerable | openldap |
| cpe:2.3:a:openldap:openldap:2.4.35:*:*:*:*:*:*:* | 2.4.35 | Vulnerable | openldap |
- cpe:2.3:a:openldap:openldap:2.4.13:*:*:*:*:*:*:* Versions 2.4.13 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.14:*:*:*:*:*:*:* Versions 2.4.14 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.15:*:*:*:*:*:*:* Versions 2.4.15 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.16:*:*:*:*:*:*:* Versions 2.4.16 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.17:*:*:*:*:*:*:* Versions 2.4.17 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.18:*:*:*:*:*:*:* Versions 2.4.18 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.19:*:*:*:*:*:*:* Versions 2.4.19 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.20:*:*:*:*:*:*:* Versions 2.4.20 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.21:*:*:*:*:*:*:* Versions 2.4.21 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.22:*:*:*:*:*:*:* Versions 2.4.22 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.23:*:*:*:*:*:*:* Versions 2.4.23 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.24:*:*:*:*:*:*:* Versions 2.4.24 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.25:*:*:*:*:*:*:* Versions 2.4.25 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.26:*:*:*:*:*:*:* Versions 2.4.26 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.27:*:*:*:*:*:*:* Versions 2.4.27 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.28:*:*:*:*:*:*:* Versions 2.4.28 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.29:*:*:*:*:*:*:* Versions 2.4.29 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.30:*:*:*:*:*:*:* Versions 2.4.30 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.31:*:*:*:*:*:*:* Versions 2.4.31 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.32:*:*:*:*:*:*:* Versions 2.4.32 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.33:*:*:*:*:*:*:* Versions 2.4.33 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.34:*:*:*:*:*:*:* Versions 2.4.34 Vulnerable ·openldap
- cpe:2.3:a:openldap:openldap:2.4.35:*:*:*:*:*:*:* Versions 2.4.35 Vulnerable ·openldap
Remediation
Red Hat 2 advisories
- RHSA-2014:0206 Released 2014-02-24 · Red Hat rating Moderateopenldap security update
- Red Hat Enterprise Linux (v. 5 server) compat-openldap-2.3.43_2.2.29-27.el5_10, compat-openldap-2.3.43_2.2.29-27.el5_10.i386, compat-openldap-2.3.43_2.2.29-27.el5_10.ia64 +25
- Red Hat Enterprise Linux Desktop (v. 5 client) compat-openldap-2.3.43_2.2.29-27.el5_10, compat-openldap-2.3.43_2.2.29-27.el5_10.i386, openldap-2.3.43-27.el5_10 +3
- Red Hat Enterprise Linux Desktop Workstation (v. 5 client) openldap-2.3.43-27.el5_10, openldap-devel-2.3.43-27.el5_10, openldap-devel-2.3.43-27.el5_10.i386 +6
- RHSA-2014:0126 Released 2014-02-03 · Red Hat rating Moderateopenldap security and bug fix update
- Red Hat Enterprise Linux Desktop (v. 6) openldap-2.4.23-34.el6_5.1, openldap-clients-2.4.23-34.el6_5.1
- Red Hat Enterprise Linux Desktop Optional (v. 6) openldap-2.4.23-34.el6_5.1, openldap-devel-2.4.23-34.el6_5.1, openldap-servers-2.4.23-34.el6_5.1 +1
- Red Hat Enterprise Linux HPC Node (v. 6) openldap-2.4.23-34.el6_5.1, openldap-clients-2.4.23-34.el6_5.1
- Red Hat Enterprise Linux HPC Node Optional (v. 6) openldap-2.4.23-34.el6_5.1, openldap-devel-2.4.23-34.el6_5.1, openldap-servers-2.4.23-34.el6_5.1 +1
- Red Hat Enterprise Linux Server (v. 6) openldap-2.4.23-34.el6_5.1, openldap-2.4.23-34.el6_5.1.ppc, openldap-clients-2.4.23-34.el6_5.1 +3
- Red Hat Enterprise Linux Server Optional (v. 6) openldap-2.4.23-34.el6_5.1, openldap-servers-sql-2.4.23-34.el6_5.1
- Red Hat Enterprise Linux Workstation (v. 6) openldap-2.4.23-34.el6_5.1, openldap-clients-2.4.23-34.el6_5.1, openldap-devel-2.4.23-34.el6_5.1 +1
- Red Hat Enterprise Linux Workstation Optional (v. 6) openldap-2.4.23-34.el6_5.1, openldap-servers-sql-2.4.23-34.el6_5.1
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2014:0206 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2014:0206 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2014:0126 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2014:0126 |
| Red Hat Enterprise Linux Desktop Workstation (v. 5 client) | Fixed | RHSA-2014:0206 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2014:0126 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2014:0126 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2014:0126 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2014:0126 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2014:0126 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2014:0126 |
Not affected: 1 product
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2013-4449
- 2026-10-03 Alias added: GHSA-rmpx-9wfm-j7j4
References
Advisory 5
Other 9
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- http://www.openldap.org/its/index.cgi/Incoming?id=7723
- https://bugzilla.redhat.com/show_bug.cgi?id=1019490
- [oss-security] 20131018 Re: CVE request: slapd segfaults on certain queries with rwm overlay enabled
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10735
- https://support.apple.com/kb/HT210788
- 20191211 APPLE-SA-2019-12-10-3 macOS Catalina 10.15.2, Security Update 2019-002 Mojave, Security Update 2019-007 High Sierra
- 20191213 APPLE-SA-2019-12-10-3 macOS Catalina 10.15.2, Security Update 2019-002 Mojave, Security Update 2019-007 High Sierra
Sources
- CVE-2013-4449 · CVE Program
- CVE-2013-4449 · NVD
- FIRST EPSS
- GHSA-rmpx-9wfm-j7j4 · GitHub Advisory Database · CC BY 4.0
- CVE-2013-4449 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences