CVE Vulnerability

CVE-2019-3883

In 389-ds-base up to version 1.4.1.2, requests are handled by workers threads. Each sockets will be waited by the worker for at most 'ioblocktimeout' seconds. However this timeout applies only for un-encrypted requests. Connections using SSL/TLS are not taking this timeout into account during reads, and may hang longer.An unauthenticated attacker could repeatedly create hanging LDAP requests to hang all the workers, resulting in a Denial of Service.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://pagure.io/389-ds-base/pull-request/50331 Third Party Advisory
https://pagure.io/389-ds-base/issue/50329 Issue Tracking Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3883 Issue Tracking Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/05/msg00008.html Mailing List Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1896 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3401 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:fedoraproject:389_directory_server:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
Information

Published : 2019-04-17 02:29

Updated : 2020-11-13 04:15

NVD link : CVE-2019-3883

Mitre link : CVE-2019-3883

Products Affected

389 Directory Server

Fedoraproject

CWE
CWE-772