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.

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

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

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

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

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Configurations

Configuration 1 (hide)

cpe:2.3:a:fedoraproject:389_directory_server:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

Configuration 3 (hide)

cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*

Information

Published : 2019-04-17 07:29

Updated : 2020-11-13 08:15

NVD link : CVE-2019-3883

Mitre link : CVE-2019-3883

JSON object : View

CWE

CWE-772

Missing Release of Resource after Effective Lifetime

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Products Affected

debian

debian_linux

redhat

enterprise_linux

fedoraproject

389_directory_server

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