CVE-2019-20104

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

06/02/2020

Last modified:

17/06/2026

Description

The OpenID client application in Atlassian Crowd before version 3.6.2, and from version 3.7.0 before 3.7.1 allows remote attackers to perform a Denial of Service attack via an XML Entity Expansion vulnerability.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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

Base Score 3.x

7.50

Severity 3.x

HIGH

Vector 2.0

AV:N/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0

5.00

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:atlassian:crowd::::::::		3.2.11 (excluding)
cpe:2.3:a:atlassian:crowd::::::::	3.3.0 (including)	3.3.8 (excluding)
cpe:2.3:a:atlassian:crowd::::::::	3.4.0 (including)	3.4.7 (excluding)
cpe:2.3:a:atlassian:crowd::::::::	3.5.0 (including)	3.5.2 (excluding)
cpe:2.3:a:atlassian:crowd::::::::	3.6.0 (including)	3.6.2 (excluding)
cpe:2.3:a:atlassian:crowd::::::::	3.6.3 (including)	3.7.1 (excluding)
cpe:2.3:a:atlassian:crowd::::::::	3.7.2 (including)	4.0.0 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2019-20104

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools