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OpenLDAP ber_get_next Denial of Service Vulnerability
Information
Severity
Severity
Medium
Family
Family
Denial of Service
CVSSv2 Base
CVSSv2 Base
5.0
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Solution Type
Solution Type
Vendor Patch
Created
Created
7 years ago
Modified
Modified
5 years ago
Summary
The host is running OpenLDAP and is prone to denial of service vulnerability.
Insight
Insight
The flaw is due to an 'assert' function call within the ber_get_next method (io.c line 682) that is hit when decoding tampered BER data.
Affected Software
Affected Software
OpenLDAP versions 2.4.42 and prior.
Detection Method
Detection Method
Send a crafted request and check whether it is able to crash the server or not.
Solution
Solution
Upgrade to OpenLDAP version 2.4.43 or later.