Denial of service in Fedora 389-ds-base



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-2591
CWE-ID CWE-125
Exploitation vector 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) Out-of-bounds heap memory read

EUVDB-ID: #VU12325

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 - Out-of-bounds read

Exploit availability: No

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 - 1.3.5.10

CPE2.3 External links

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


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.



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