CVE-2022-4044: Github.com/mattermost/mattermost server Denial of Service Vulnerability

MODERATE
Advisory Identifier: GHSA-5jph-wrq7-v9hf
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CVSS 6.5
CWE-770
Published
Advisory Summary

CVE-2022-4044 is a MODERATE (CVSS 6.5) denial of service vulnerability (CWE-770: Allocation of Resources Without Limits or Throttling) affecting Github.com/mattermost/mattermost server libraries in the Go ecosystem. The issue involves denial of service in mattermost. Remediation is available by upgrading affected packages to version 7.1.4, 7.2.1, 7.3.1.

CVE-2022-4044 at a Glance

CVE Identifier CVE-2022-4044
GHSA Identifier GHSA-5jph-wrq7-v9hf
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-770: Allocation of Resources Without Limits or Throttling
Affected Product Github.com/mattermost/mattermost server
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 6.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2022-4044

To remediate this vulnerability, upgrade all affected Github.com/mattermost/mattermost server dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/mattermost/mattermost-server fixed: 7.1.4 
Upgrade github.com/mattermost/mattermost-server to 7.1.4
github.com/mattermost/mattermost-server fixed: 7.2.1 
Upgrade github.com/mattermost/mattermost-server to 7.2.1
github.com/mattermost/mattermost-server fixed: 7.3.1 
Upgrade github.com/mattermost/mattermost-server to 7.3.1
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for github.com/mattermost/mattermost-server

How to Check if You Are Affected

To determine whether your application is affected by CVE-2022-4044, inspect your project dependencies for Github.com/mattermost/mattermost server:

inspect dependencies for github.com/mattermost/mattermost-server

Analyze the terminal output to locate any version of Github.com/mattermost/mattermost server in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 7.1.4), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-770: Allocation of Resources Without Limits or Throttling, where the product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated. In Github.com/mattermost/mattermost server, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A denial-of-service vulnerability in Mattermost allows an authenticated user to crash the server via multiple large autoresponder messages.

CVE-2022-4044 Affected Github.com/mattermost/mattermost server Versions

3 component(s)
Fixed Versions:
7.1.47.2.17.3.1
Product / Package Ecosystem Affected Versions Fixed Version
github.com/mattermost/mattermost-server
golang/github.com/mattermost/mattermost-server
Go
< 7.1.4
7.1.4
github.com/mattermost/mattermost-server
golang/github.com/mattermost/mattermost-server
Go
≥ 7.2.0
< 7.2.1
7.2.1
github.com/mattermost/mattermost-server
golang/github.com/mattermost/mattermost-server
Go
≥ 7.3.0
< 7.3.1
7.3.1

References

NVD — CVE-2022-4044 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-4044
hackerone.com/reports/1680241 WEB
https://hackerone.com/reports/1680241
Github.com/mattermost/mattermost server Security Information SECURITY
https://mattermost.com/security-updates

Frequently Asked Questions

What is CVE-2022-4044?
CVE-2022-4044 is a security vulnerability in Github.com/mattermost/mattermost server involving Denial of service in Mattermost under CWE-770: Allocation of Resources Without Limits or Throttling.
Which Github.com/mattermost/mattermost server versions are affected?
Affected versions include releases prior to 7.1.4, 7.2.1, 7.3.1 across affected packages: github.com/mattermost/mattermost-server.
What version fixes CVE-2022-4044?
Upgrading to 7.1.4, 7.2.1, 7.3.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/mattermost/mattermost-server affected?
Yes, github.com/mattermost/mattermost-server is affected in releases prior to 7.1.4, 7.2.1, 7.3.1. Upgrade your dependency to 7.1.4, 7.2.1, 7.3.1 or later.
What is the CVSS score of CVE-2022-4044?
CVE-2022-4044 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2022-4044?
CVE-2022-4044 is classified under CWE-770: Allocation of Resources Without Limits or Throttling (The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.).
How can I check Go dependencies for CVE-2022-4044?
Run the dependency tree command: 'inspect dependencies for github.com/mattermost/mattermost-server'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-5jph-wrq7-v9hf",
  "modified" : "2022-11-26T20:18:04Z",
  "published" : "2022-11-23T06:30:24Z",
  "aliases" : [ "CVE-2022-4044" ],
  "summary" : "Denial of service in Mattermost",
  "details" : "A denial-of-service vulnerability in Mattermost allows an authenticated user to crash the server via multiple large autoresponder messages.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/mattermost/mattermost-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "7.1.4"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/mattermost/mattermost-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "7.2.0"
      }, {
        "fixed" : "7.2.1"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/mattermost/mattermost-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "7.3.0"
      }, {
        "fixed" : "7.3.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-4044"
  }, {
    "type" : "WEB",
    "url" : "https://hackerone.com/reports/1680241"
  }, {
    "type" : "WEB",
    "url" : "https://mattermost.com/security-updates"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-770" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-11-23T22:17:54Z",
    "nvd_published_at" : "2022-11-23T06:15:00Z"
  }
}