CVE-2010-0211The slap_modrdn2mods function in modrdn.c in OpenLDAP 2.4.22 does not check the return value of a call to the smr_normalize function,…
- 9.8CriticalCVSS base score
- 28.5%Exploitation in 30 daysEPSS · top 1.8% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
Description
The slap_modrdn2mods function in modrdn.c in OpenLDAP 2.4.22 does not check the return value of a call to the smr_normalize function, which allows remote attackers to cause a denial of service (segmentation fault) and possibly execute arbitrary code via a modrdn call with an RDN string containing invalid UTF-8 sequences, which triggers a free of an invalid, uninitialized pointer in the slap_mods_free function, as demonstrated using the Codenomicon LDAPv3 test suite.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it.
Show the exploits1
Exploit-DB1 entry
- OpenLDAP 2.4.22 - 'modrdn' Multiple Vulnerabilities (Exploit-DB entry) (opens in a new tab)
EDB-ID 34348dos, linuxpublished 19 Jul 2010Verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By certcc
- 7 months later
· 7 months later
Published
- 14 years later
· 14 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 28.5% · top 1.8% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Affected products
n/a
- affected n/a
References
References19
- 1024221 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- http://support.apple.com/kb/HT4435 (opens in a new tab)x_refsource_CONFIRMx_transferred
- GLSA-201406-36 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- http://www.openldap.org/its/index.cgi/Software%20Bugs?id=6570 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.vmware.com/security/advisories/VMSA-2011-0001.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- ADV-2010-1858 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 40677 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- APPLE-SA-2010-11-10-1 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
- ADV-2010-1849 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 41770 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- RHSA-2010:0542 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 40687 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 20110105 VMSA-2011-0001 VMware ESX third party updates for Service Console packages glibc, sudo, and openldap (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- SUSE-SR:2010:014 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- RHSA-2010:0543 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 40639 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 42787 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- ADV-2011-0025 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2010-0242 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2010-0211)Record last updated .