The deref_parseCtrl function in servers/slapd/overlays/deref.c in OpenLDAP 2.4.13 through 2.4.40 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via an empty attribute list in a deref control in a search request.
Published 2015-02-12 16:59:06
Updated 2017-09-08 01:29:50
Source MITRE
View at NVD,
Vulnerability category: Memory CorruptionDenial of service

Exploit prediction scoring system (EPSS) score for CVE-2015-1545

Probability of exploitation activity in the next 30 days EPSS Score History
~ 99 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2015-1545

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen

Vendor statements for CVE-2015-1545

  • 2015-02-25
    Note that the deref overlay is not enabled by default, so this vulnerability only affects sites that have explicitly configured their servers to load and enable the overlay. Since this overlay has never been documented, there are no sites outside of the OpenLDAP developer community with a legitimate reason to enable this module.

References for CVE-2015-1545

Products affected by CVE-2015-1545

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