OpenLDAP 2.4.22 allows remote attackers to cause a denial of service (crash) via a modrdn…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- Partial Red Hat: 3 fixed, 1 without a fix
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-264.
Summary
OpenLDAP 2.4.22 allows remote attackers to cause a denial of service (crash) via a modrdn call with a zero-length RDN destination string, which is not properly handled by the smr_normalize function and triggers a NULL pointer dereference in the IA5StringNormalize function in schema_init.c, as demonstrated using the Codenomicon LDAPv3 test suite.
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
Remediation
Red Hat 1 advisory
- RHSA-2010:0542 Released 2010-07-20 · Red Hat rating Moderateopenldap security update
- Red Hat Enterprise Linux (v. 5 server) compat-openldap-2.3.43_2.2.29-12.el5_5.1, compat-openldap-2.3.43_2.2.29-12.el5_5.1.i386, compat-openldap-2.3.43_2.2.29-12.el5_5.1.ia64 +25
- Red Hat Enterprise Linux Desktop (v. 5 client) compat-openldap-2.3.43_2.2.29-12.el5_5.1, compat-openldap-2.3.43_2.2.29-12.el5_5.1.i386, openldap-2.3.43-12.el5_5.1 +3
- Red Hat Enterprise Linux Desktop Workstation (v. 5 client) openldap-2.3.43-12.el5_5.1, openldap-devel-2.3.43-12.el5_5.1, openldap-devel-2.3.43-12.el5_5.1.i386 +6
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 4 | Affected | No fix yet |
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2010:0542 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2010:0542 |
| Red Hat Enterprise Linux Desktop Workstation (v. 5 client) | Fixed | RHSA-2010:0542 |
Not affected: 1 product
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2010-0212
- 2026-10-03 Alias added: GHSA-w879-m4wh-92f9
References
Patch 1
More Openldap vulnerabilities
- TI-2022-11700 In OpenLDAP 2.x before 2.5.12 and 2.6.x before 2.6.2, a SQL injection vulnerability… CVSS 3.1CRITICAL 9.8
- TI-2020-18548 An integer underflow was discovered in OpenLDAP before 2.4.57 leading to a slapd crash in… CVSS 3.1HIGH 7.5
- TI-2020-18541 An integer underflow was discovered in OpenLDAP before 2.4.57 leading to slapd crashes in… CVSS 3.1HIGH 7.5
- TI-2020-18547 A flaw was discovered in OpenLDAP before 2.4.57 leading to an infinite loop in slapd with… CVSS 3.1HIGH 7.5
- TI-2020-18542 A flaw was discovered in OpenLDAP before 2.4.57 leading to an assertion failure in slapd… CVSS 3.1HIGH 7.5
- TI-2006-05563 OpenLDAP before 2.3.29 allows remote attackers to cause a denial of service (daemon… CVSS 3.1HIGH 7.5
Sources
- CVE-2010-0212 · CVE Program
- CVE-2010-0212 · NVD
- FIRST EPSS
- GHSA-w879-m4wh-92f9 · GitHub Advisory Database · CC BY 4.0
- CVE-2010-0212 · Red Hat security data · CC BY 4.0
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