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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

5 years ago

Modified

Modified

3 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.

Common Vulnerabilities and Exposures (CVE)