7.5
HIGH
CVE-2019-3883
Apache DS-Base SSL/TLS Denial of Service
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.

INFO

Published Date :

April 17, 2019, 2:29 p.m.

Last Modified :

Nov. 21, 2024, 4:42 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2019-3883 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Redhat enterprise_linux
1 Debian debian_linux
1 Fedoraproject 389_directory_server
References to Advisories, Solutions, and Tools

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2019-3883 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-3883 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2019:1896
    Added Reference https://access.redhat.com/errata/RHSA-2019:3401
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3883
    Added Reference https://lists.debian.org/debian-lts-announce/2019/05/msg00008.html
    Added Reference https://lists.debian.org/debian-lts-announce/2023/04/msg00026.html
    Added Reference https://pagure.io/389-ds-base/issue/50329
    Added Reference https://pagure.io/389-ds-base/pull-request/50331
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Apr. 24, 2023

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2023/04/msg00026.html [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 13, 2020

    Action Type Old Value New Value
    Removed CWE Red Hat, Inc. CWE-400
    Added CWE Red Hat, Inc. CWE-772
    Removed CWE Reason CWE-400 / More specific CWE option available
  • Modified Analysis by [email protected]

    Oct. 16, 2020

    Action Type Old Value New Value
    Removed CVSS V3 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://access.redhat.com/errata/RHSA-2019:1896 No Types Assigned https://access.redhat.com/errata/RHSA-2019:1896 Third Party Advisory
    Changed Reference Type https://access.redhat.com/errata/RHSA-2019:3401 No Types Assigned https://access.redhat.com/errata/RHSA-2019:3401 Third Party Advisory
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2019/05/msg00008.html No Types Assigned https://lists.debian.org/debian-lts-announce/2019/05/msg00008.html Mailing List, Third Party Advisory
    Removed CWE NIST CWE-119
    Added CWE NIST CWE-772
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Nov. 06, 2019

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2019:3401 [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 09, 2019

    Action Type Old Value New Value
    Added CVSS V3 Red Hat, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
    Added CWE Red Hat, Inc. CWE-400
  • CVE Modified by [email protected]

    Jul. 29, 2019

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2019:1896 [No Types Assigned]
  • CVE Modified by [email protected]

    May. 06, 2019

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2019/05/msg00008.html [No Types Assigned]
  • Initial Analysis by [email protected]

    Apr. 17, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:N/A:P)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://pagure.io/389-ds-base/issue/50329 No Types Assigned https://pagure.io/389-ds-base/issue/50329 Issue Tracking, Third Party Advisory
    Changed Reference Type https://pagure.io/389-ds-base/pull-request/50331 No Types Assigned https://pagure.io/389-ds-base/pull-request/50331 Third Party Advisory
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3883 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3883 Issue Tracking, Third Party Advisory
    Added CWE CWE-119
    Added CPE Configuration OR *cpe:2.3:a:fedoraproject:389_directory_server:*:*:*:*:*:*:*:* versions up to (including) 1.4.1.2
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-3883 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2019-3883 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

4.63 }} -0.83%

score

0.92471

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability