#VU20063 Resource management error in 389-ds-base - CVE-2019-3883


Vulnerability identifier: #VU20063

Vulnerability risk: Low

CVSSv4.0: 4.9 [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:U/U:Clear]

CVE-ID: CVE-2019-3883

CWE-ID: CWE-399

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 attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to incorrect processing of tome outs for SSL/TLS connections. A remote authenticated user initiate a large number of SSL/TLS connections and consume all available workers, which will lead to a denial of service attack. 



Mitigation
Install updates from vendor's website.

Vulnerable software versions

389-ds-base: 1.4.1.1


External links
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3883
https://lists.debian.org/debian-lts-announce/2019/05/msg00008.html
https://pagure.io/389-ds-base/issue/50329
https://pagure.io/389-ds-base/pull-request/50331


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.


Latest bulletins with this vulnerability