#VU12325 Out-of-bounds heap memory read in 389-ds-base - CVE-2017-2591

Vulnerability identifier: #VU12325

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-2017-2591

CWE-ID: CWE-125

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 the uniqueness_entry_to_config() function due to improper NULL termination of an array in certain configurations of the uiduniq.c source code file. A remote attacker can send a specially crafted request, trigger out-of-bounds heap memory read in the uiduniq.c source code file and cause the service to crash.. 

Mitigation
Update to version 1.3.6 or later.

Vulnerable software versions

389-ds-base: 1.3.0 - 1.3.0.8, 1.3.1.0 - 1.3.1.19, 1.3.3.1, 1.3.4, 1.3.5.10

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External links
https://pagure.io/389-ds-base/issue/48986

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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.