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.
Metrics
CVSS 2.0 4.0/10
AV:N/AC:L/Au:S/C:N/I:N/A:PWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://secunia.com/advisories/46599Vendor Advisory
- 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
- http://www.openwall.com/lists/oss-security/2011/10/26/9
- http://www.securityfocus.com/bid/50384
- http://www.ubuntu.com/usn/USN-1266-1
- https://bugzilla.redhat.com/show_bug.cgi?id=749324Patch
- https://exchange.xforce.ibmcloud.com/vulnerabilities/70991
- http://secunia.com/advisories/46599Vendor Advisory
- 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
- http://www.openwall.com/lists/oss-security/2011/10/26/9
- http://www.securityfocus.com/bid/50384
- http://www.ubuntu.com/usn/USN-1266-1
- https://bugzilla.redhat.com/show_bug.cgi?id=749324Patch
- https://exchange.xforce.ibmcloud.com/vulnerabilities/70991
Timeline
- Published
- Oct 27, 2011
- Last modified
- Jun 16, 2026
- NVD status
- Modified