National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-3883 Detail

Current Description

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.

Source:  MITRE
Description Last Modified:  04/17/2019
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (V3 legend)
Impact Score: 3.6
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
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
https://pagure.io/389-ds-base/issue/50329 Issue Tracking Third Party Advisory
https://pagure.io/389-ds-base/pull-request/50331 Third Party Advisory

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:fedoraproject:389_directory_server:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
1.4.1.2


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-3883
NVD Published Date:
04/17/2019
NVD Last Modified:
05/06/2019