CVE-2011-4079
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
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 3.27% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 88.3% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2011-10-27 20:00Z15 YR AGO
- Last updated
- 2024-08-06 23:53Z2 YR AGO
- Reserved
- 2011-10-18
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- 063e19059ebb4dd8231397b27bfbe0370abce3bd338ce4ae541d6f83d6013992
05 Affected products
06 References
- security.gentoo.orgGLSA-201406-36http://security.gentoo.org/glsa/glsa-201406-36.xml
- www.openwall.com[oss-security] 20111026 CVE Request: openldap2 UTF8StringNormalize() can cause a (one-byte) buffer overflowhttp://www.openwall.com/lists/oss-security/2011/10/26/5
- www.openldap.orghttp://www.openldap.org/its/index.cgi/Software%20Bugs?id=7059%3Bselectid=7059
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=749324
- www.ubuntu.comUSN-1266-1http://www.ubuntu.com/usn/USN-1266-1
- secunia.com46599http://secunia.com/advisories/46599
- www.openldap.orghttp://www.openldap.org/devel/gitweb.cgi?p=openldap.git%3Ba=commitdiff%3Bh=507238713b71208ec4f262f312cb495a302df9e9
- www.securityfocus.com50384http://www.securityfocus.com/bid/50384
- exchange.xforce.ibmcloud.comopenldap-utf8stringnormalize-dos(70991)https://exchange.xforce.ibmcloud.com/vulnerabilities/70991
- www.openwall.com[oss-security] 20111026 Re: CVE Request: openldap2 UTF8StringNormalize() can cause a (one-byte) buffer overflowhttp://www.openwall.com/lists/oss-security/2011/10/26/9
07 Fixed in
Debian 12
- openldap Fixed in 2.4.28-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- openldap Fixed in 2.4.28-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- openldap Fixed in 2.4.28-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.