Vulnerability in Openldap
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 heap-based buffer overflow, as demonstrated using an empty postalAddressAttribute value in an LDIF entry.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 4.0 (Medium). Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.033 (88.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 88.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.033 · newest: 0.033 · change: 0.000
Affected products
- Openldap — versions 1.0, 1.0.1, 1.0.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security.gentoo.org/glsa/glsa-201406-36.xml (vendor-advisory)
- www.openwall.com/lists/oss-security/2011/10/26/5 (mailing-list)
- www.openldap.org/its/index.cgi/Software Bugs
- bugzilla.redhat.com/show_bug.cgi (Patch)
- www.ubuntu.com/usn/USN-1266-1 (vendor-advisory)
- secunia.com/advisories/46599 (Vendor Advisory, third-party-advisory)
- www.openldap.org/devel/gitweb.cgi
- www.securityfocus.com/bid/50384 (vdb-entry)
- exchange.xforce.ibmcloud.com/vulnerabilities/70991 (vdb-entry)
- www.openwall.com/lists/oss-security/2011/10/26/9 (mailing-list)
Frequently asked questions
- What is CVE-2011-4079?
- CVE-2011-4079 is a vulnerability in Openldap, classified under CWE-189. Published 2011-10-27.
- Is CVE-2011-4079 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.