Denial of service in 389-ds-base



| Updated: 2019-11-26
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-2668
CWE-ID CWE-822
Exploitation vector Local network
Public exploit N/A
Vulnerable software
 389-ds-base
Server applications / Directory software, identity management

Vendor 389 Directory Server Project

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Untrusted Pointer Dereference

EUVDB-ID: #VU23003

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2017-2668

CWE-ID: CWE-822 - Untrusted Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to invalid pointer dereference when processing LDAP bind requests in ns-slapd within 389-ds-base. A remote attacker can send a specially crafted LDAP request and perform a denial of service attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

389-ds-base: 1.3.5.1 - 1.3.6.9

CPE2.3 External links

https://access.redhat.com/errata/RHSA-2017:0893
https://access.redhat.com/errata/RHSA-2017:0920
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2668
https://pagure.io/389-ds-base/issue/49220


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

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.



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