CVE-2023-40703

2023-11-2710:15:07

CWE-400

[email protected]

web.nvd.nist.gov

mattermost

boards

dos

cve-2023-40703

security vulnerability

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

5.5 Medium

AI Score

Confidence

High

0.0005 Low

EPSS

Percentile

17.0%

JSON

Mattermost fails to properly limit the characters allowed in different fields of a block in Mattermost Boards allowing a attacker to consume excessive resources, possibly leading to Denial of Service, by patching the field of a block using a specially crafted string.

Affected configurations

NVD

Node

mattermostmattermostRange≤7.8.12

mattermostmattermostRange8.0.0–8.1.3

mattermostmattermostRange9.0.0–9.0.1

mattermostmattermostMatch9.1.0

CPENameOperatorVersion
mattermost:mattermostmattermostle7.8.12
mattermost:mattermostmattermostle8.1.3
mattermost:mattermostmattermostle9.0.1
mattermost:mattermostmattermosteq9.1.0

CPE	Name	Operator	Version
mattermost:mattermost	mattermost	le	7.8.12
mattermost:mattermost	mattermost	le	8.1.3
mattermost:mattermost	mattermost	le	9.0.1
mattermost:mattermost	mattermost	eq	9.1.0

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Mattermost",
    "vendor": "Mattermost",
    "versions": [
      {
        "lessThanOrEqual": "7.8.12",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "8.1.3",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "9.0.1",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "9.1.0",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "9.1.1"
      },
      {
        "status": "unaffected",
        "version": "9.0.2"
      },
      {
        "status": "unaffected",
        "version": "7.8.13"
      },
      {
        "status": "unaffected",
        "version": "8.1.4"
      }
    ]
  }
]