#VU12607 Buffer overflow in 389-ds-base - CVE-2018-1089

Vulnerability identifier: #VU12607

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2018-1089

CWE-ID: CWE-119

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 unauthenticated attacker to cause DoS condition on the target system.

The weakness exists in ns-slapd due to improper handling of long search filters with characters needing escapes. A remote attacker can submit a specially crafted LDAP request, trigger buffer overflow and cause the service to crash.

Mitigation
Update to versions 1.4.0.9, 1.3.8.1 or 1.3.6.15.

Vulnerable software versions

389-ds-base: 1.3.6 - 1.3.6.14, 1.3.8, 1.4.0 - 1.4.0.8

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External links
https://seclists.org/oss-sec/2018/q2/89

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.