Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2015-6908 |
CWE-ID | CWE-20 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software |
OpenLDAP Server applications / Directory software, identity management |
Vendor | OpenLDAP.org |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU33285
Risk: Medium
CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2015-6908
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote non-authenticated attacker to perform service disruption.
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.
MitigationInstall update from vendor's website.
Vulnerable software versionsOpenLDAP: 2.4.3 - 2.4.42
CPE2.3https://lists.apple.com/archives/security-announce/2015/Dec/msg00005.html
https://lists.opensuse.org/opensuse-security-announce/2016-01/msg00031.html
https://lists.opensuse.org/opensuse-security-announce/2016-01/msg00032.html
https://lists.opensuse.org/opensuse-security-announce/2016-01/msg00037.html
https://lists.opensuse.org/opensuse-security-announce/2016-01/msg00039.html
https://lists.opensuse.org/opensuse-security-announce/2016-01/msg00040.html
https://rhn.redhat.com/errata/RHSA-2015-1840.html
https://www.debian.org/security/2015/dsa-3356
https://www.openldap.org/devel/gitweb.cgi?p=openldap.git;a=commit;h=6fe51a9ab04fd28bbc171da3cf12f1c1040d6629
https://www.openldap.org/its/index.cgi/Software%20Bugs?id=8240
https://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
https://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
https://www.security-assessment.com/files/documents/advisory/OpenLDAP-ber_get_next-Denial-of-Service.pdf
https://www.securityfocus.com/bid/76714
https://www.securitytracker.com/id/1033534
https://www.ubuntu.com/usn/USN-2742-1
https://support.apple.com/HT205637
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.