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CVE-2011-4079

Date: October 27, 2011

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.

Language: C

Severity Score

Related Resources (12)

http://www.openwall.com/lists/oss-security/2011/10/26/5
http://secunia.com/advisories/46599
http://www.openldap.org/devel/gitweb.cgi?p=openldap.git%3Ba=commitdiff%3Bh=507238713b71208ec4f262f312cb495a302df9e9
http://security.gentoo.org/glsa/glsa-201406-36.xml
http://www.openwall.com/lists/oss-security/2011/10/26/9
https://nvd.nist.gov/vuln/detail/CVE-2011-4079
http://www.openldap.org/its/index.cgi/Software%20Bugs?id=7059%3Bselectid=7059
https://exchange.xforce.ibmcloud.com/vulnerabilities/70991
http://www.ubuntu.com/usn/USN-1266-1
https://bugzilla.redhat.com/show_bug.cgi?id=749324
http://www.securityfocus.com/bid/50384
https://www.mend.io/vulnerability-database/CVE-2011-4079

Severity Score

Weakness Type (CWE)

Numeric Errors

CWE-189

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): SINGLE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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