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OpenLDAP DoS Vulnerability (Feb 2021)

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

1 year ago

Modified

Modified

1 year ago

Summary

OpenLDAP is prone to a denial of service (DoS) vulnerability.

Insight

Insight

In OpenLDAP an assertion failure in slapd can occur in the issuerAndThisUpdateCheck function via a crafted packet, resulting in a denial of service (daemon exit) via a short timestamp. This is related to schema_init.c and checkTime.

Affected Software

Affected Software

OpenLDAP version 2.4.57 and prior and 2.5.x through 2.5.1alpha.

Detection Method

Detection Method

Checks if a vulnerable version is present on the target host.

Solution

Solution

Update to version 2.4.58, 2.5.4 or later.

Common Vulnerabilities and Exposures (CVE)