PT-2020-10844 · Mattermost · Mattermost Server

Published 2020-06-19 · Updated 2021-07-21 · CVE-2019-20880

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Mattermost Server versions prior to 5.8.0 Mattermost Server versions prior to 5.7.2 Mattermost Server versions prior to 5.6.5 Mattermost Server versions prior to 4.10.7

Description An issue in Mattermost Server allows attackers to cause a denial of service, specifically memory consumption, via OpenGraph.

Recommendations For versions prior to 5.8.0, update to version 5.8.0 or later. For versions prior to 5.7.2, update to version 5.7.2 or later. For versions prior to 5.6.5, update to version 5.6.5 or later. For versions prior to 4.10.7, update to version 4.10.7 or later.

Fix

DoS

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

CVE-2019-20880

Affected Products

Mattermost Server

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2019-20880 · Security Note
• https://mattermost.com/security-updates · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-20880 · Vendor Advisory