#VU15529 Improper input validation in 389-ds-base - CVE-2018-10935

Vulnerability identifier: #VU15529

Vulnerability risk: Low

CVSSv4.0: 5.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2018-10935

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
389-ds-base
Server applications / Directory software, identity management

Vendor: 389 Directory Server Project

Description

The vulnerability allows a remote authenticated attacker to cause DoS condition on the target system.

The vulnerability exists due to improper processing of Lightweight Directory Access Protocol (LDAP) queries. A remote attacker can send execute the ldapsearch command with server-side sorting controls and cause the LDAP server to crash, resulting in a DoS condition.

Mitigation
The vulnerability has been addressed in the versions 1.3.8.7 and 1.4.0.14.

Vulnerable software versions

389-ds-base: 1.1.0 - 1.1.46, 1.2.0, 1.2.9.0 - 1.2.9.9, 1.2.10.a8 - 1.2.10.24, 1.2.11.1 - 1.2.11.23, 1.3.0 - 1.3.0.8, 1.3.1.0 - 1.3.1.19, 1.3.3.1, 1.3.4, 1.3.5.1 - 1.3.5.19, 1.3.6 - 1.3.6.15, 1.3.7 - 1.3.7.10, 1.3.8 - 1.3.8.3, 1.4.0 - 1.4.0.10

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External links
https://pagure.io/389-ds-base/issue/49890

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.