CVE-2023-3994 Uncontrolled Resource Consumption in GitLab

2023-08-0200:06:50

CWE-400

GitLab

www.cve.org

gitlab

uncontrolled resource consumption

regular expression denial of service

crafted payloads

projectreferencefilter

CVSS3

7.5

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

AI Score

7.5

Confidence

High

EPSS

0.001

Percentile

38.4%

JSON

An issue has been discovered in GitLab CE/EE affecting all versions starting from 9.3 before 16.0.8, all versions starting from 16.1 before 16.1.3, all versions starting from 16.2 before 16.2.2. A Regular Expression Denial of Service was possible via sending crafted payloads which use ProjectReferenceFilter to the preview_markdown endpoint.

CNA Affected

[
  {
    "cpes": [
      "cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"
    ],
    "defaultStatus": "unaffected",
    "product": "GitLab",
    "repo": "git://[email protected]:gitlab-org/gitlab.git",
    "vendor": "GitLab",
    "versions": [
      {
        "lessThan": "16.0.8",
        "status": "affected",
        "version": "9.3",
        "versionType": "semver"
      },
      {
        "lessThan": "16.1.3",
        "status": "affected",
        "version": "16.1",
        "versionType": "semver"
      },
      {
        "lessThan": "16.2.2",
        "status": "affected",
        "version": "16.2",
        "versionType": "semver"
      }
    ]
  }
]