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Vulnerability record · CVE-2015-6908 · published 11 September 2015

CVE-2015-6908: Openldap improper input validation vulnerability

Openldap · Openldap

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.

5.0 CVSS 2.0 Medium EPSS 20% · top 2.6% CWE-20 · Improper input validation
5.0CVSS 2.0 base score
20%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
34References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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.

AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.apple.com/archives/security-announce/2015/Dec/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00031.html
http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00032.html
http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00037.html
http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00039.html
http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00040.html
http://rhn.redhat.com/errata/RHSA-2015-1840.html
http://www.debian.org/security/2015/dsa-3356
http://www.openldap.org/devel/gitweb.cgi?p=openldap.git%3Ba=commit%3Bh=6fe51a9ab04fd28bbc171da3cf12f1c1040d6629
http://www.openldap.org/its/index.cgi/Software%20Bugs?id=8240 ExploitVendor Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
http://www.security-assessment.com/files/documents/advisory/OpenLDAP-ber_get_next-Denial-of-Service.pdf
http://www.securityfocus.com/bid/76714
http://www.securitytracker.com/id/1033534
http://www.ubuntu.com/usn/USN-2742-1
https://support.apple.com/HT205637
http://lists.apple.com/archives/security-announce/2015/Dec/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00031.html
http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00032.html
http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00037.html
http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00039.html
http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00040.html
http://rhn.redhat.com/errata/RHSA-2015-1840.html
http://www.debian.org/security/2015/dsa-3356
http://www.openldap.org/devel/gitweb.cgi?p=openldap.git%3Ba=commit%3Bh=6fe51a9ab04fd28bbc171da3cf12f1c1040d6629
http://www.openldap.org/its/index.cgi/Software%20Bugs?id=8240 ExploitVendor Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
http://www.security-assessment.com/files/documents/advisory/OpenLDAP-ber_get_next-Denial-of-Service.pdf
http://www.securityfocus.com/bid/76714
http://www.securitytracker.com/id/1033534
http://www.ubuntu.com/usn/USN-2742-1
https://support.apple.com/HT205637

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Source: NIST National Vulnerability Database (record CVE-2015-6908), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.