Home/CVE/Off-by-one error in the UTF8StringNormalize function in OpenLDAP 2.4.26 and earlier allows remote attackers to cause a d
CVE

CVE-2011-4079

Off-by-one error in the UTF8StringNormalize function in OpenLDAP 2.4.26 and earlier allows remote attackers to cause a d

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.

MEDIUM · CVSS 4 EPSS 0.06754
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  • EPSS percentile: top 9% of all CVEs by exploitation likelihood
Sigma rules0 YARA rules0
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Affected Products & Versions

2
openldap<= 2.4.26
openldapall versions
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Scoring & Timeline

4
MEDIUM · CVSS v2 (legacy) · secalert@redhat.com
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This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:L/Au:S/C:N/I:N/A:P
Published to NVD27 Oct 2011 · 08:55 PM
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Vendor Advisories

1
usnUSN-1266-1
🔗

References & Sources

10
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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
http://www.openldap.org/its/index.cgi/Software
http://www.openwall.com/lists/oss-security/2011/10/26/5
http://www.openwall.com/lists/oss-security/2011/10/26/9
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