CVE-2015-6908

OpenLDAP < 2.4.42 - Denial of Service via Crafted BER Data

Title source: llm

Exploitation Summary

EIP tracks 1 public exploit for CVE-2015-6908. PoCs published by Denis Andzakovic.

AI-analyzed exploit summary This exploit triggers a denial-of-service (DoS) in OpenLDAP by sending a crafted packet that causes an assert() failure in the ber_get_next method. The PoC uses a base64-encoded payload sent via netcat to crash the slapd daemon.

Description

The ber_get_next function in libraries/liblber/io.c in OpenLDAP 2.4.42 and earlier allows remote attackers to cause a denial of service (reachable assertion and application crash) via crafted BER data, as demonstrated by an attack against slapd.

Exploits (1)

exploitdb WORKING POC

by Denis Andzakovic · textdoslinux

https://www.exploit-db.com/exploits/38145

View Code ZIP pw:eip

This exploit triggers a denial-of-service (DoS) in OpenLDAP by sending a crafted packet that causes an assert() failure in the ber_get_next method. The PoC uses a base64-encoded payload sent via netcat to crash the slapd daemon.

Classification

Working Poc 100%

Attack Type

Dos

Complexity

Trivial

Reliability

Reliable

Target: OpenLDAP <= 2.4.42

No auth needed

Prerequisites: Network access to the OpenLDAP server (port 389)

MITRE ATT&CK

T1499 - Endpoint Denial of Service

devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (17)

Core 17

Core References

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/76714

Vendor Advisory x_refsource_confirm

http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html

Vendor Advisory x_refsource_confirm

http://www.security-assessment.com/files/documents/advisory/OpenLDAP-ber_get_next-Denial-of-Service.pdf

Vendor Advisory x_refsource_confirm

https://support.apple.com/HT205637

Mailing List vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00037.html

Mailing List vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00031.html

Various Sources x_refsource_confirm

http://www.openldap.org/devel/gitweb.cgi?p=openldap.git%3Ba=commit%3Bh=6fe51a9ab04fd28bbc171da3cf12f1c1040d6629

Third Party Advisory vendor-advisory x_refsource_debian

http://www.debian.org/security/2015/dsa-3356

Mailing List vendor-advisory x_refsource_apple

http://lists.apple.com/archives/security-announce/2015/Dec/msg00005.html

Vendor Advisory x_refsource_confirm

http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html

Vendor Advisory vendor-advisory x_refsource_ubuntu

http://www.ubuntu.com/usn/USN-2742-1

Exploit, Vendor Advisory x_refsource_confirm

http://www.openldap.org/its/index.cgi/Software%20Bugs?id=8240

Vendor Advisory vendor-advisory x_refsource_redhat

http://rhn.redhat.com/errata/RHSA-2015-1840.html

Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack

http://www.securitytracker.com/id/1033534

Mailing List vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00039.html

Mailing List vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00040.html

Mailing List vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00032.html

Scores

EPSS 0.7051

EPSS Percentile 98.7%

Details

CWE

CWE-20

Status published

Products (2)

apple/mac_os_x < 10.11.1

openldap/openldap < 2.4.42

Published Sep 11, 2015

Tracked Since Feb 18, 2026