{"cve":"CVE-2011-4079","nvd":{"published":"2011-10-27T20:55:01.823","modified":"2026-06-16T23:34:23.250","status":"Modified","description":"Off-by-one error in the UTF8StringNormalize function in OpenLDAP 2.4.26 and earlier allows remote attackers to cause a denial of service (slapd crash) via a zero-length string that triggers a heap-based buffer overflow, as demonstrated using an empty postalAddressAttribute value in an LDIF entry.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-189"],"references":["http://secunia.com/advisories/46599","http://security.gentoo.org/glsa/glsa-201406-36.xml","http://www.openldap.org/devel/gitweb.cgi?p=openldap.git%3Ba=commitdiff%3Bh=507238713b71208ec4f262f312cb495a302df9e9","http://www.openldap.org/its/index.cgi/Software%20Bugs?id=7059%3Bselectid=7059","http://www.openwall.com/lists/oss-security/2011/10/26/5"],"products":["openldap:openldap"],"source":"nvd","synced_at":"2026-10-19T19:59:31.623151214+00:00"},"epss":{"cve":"CVE-2011-4079","score":0.0327,"percentile":0.88402,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}