SB2020061942 - Multiple vulnerabilities in Mattermost, Mattermost Server

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Main Vulnerability Database SB2020061942

SB2020061942 - Multiple vulnerabilities in Mattermost, Mattermost Server

Published: June 19, 2020 Updated: July 17, 2020

Security Bulletin ID SB2020061942
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Incorrect permission assignment for critical resource (CVE-ID: CVE-2019-20879)

The vulnerability allows a remote authenticated user to manipulate data.

An issue was discovered in Mattermost Server before 5.8.0, 5.7.2, 5.6.5, and 4.10.7. Changes to e-mail addresses do not require credential re-entry.


2) Resource exhaustion (CVE-ID: CVE-2019-20880)

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

An issue was discovered in Mattermost Server before 5.8.0, 5.7.2, 5.6.5, and 4.10.7. It allows attackers to cause a denial of service (memory consumption) via OpenGraph.


Remediation

Install update from vendor's website.

References