CVE-2023-3909 Uncontrolled Resource Consumption in GitLab

2023-11-0612:08:45

CWE-400

GitLab

www.cve.org

cve-2023-3909

gitlab

resource consumption

regular expression denial of service

gitlab-ci.yml

4.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

6.7 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

13.5%

JSON

An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.3 before 16.3.6, all versions starting from 16.4 before 16.4.2, all versions starting from 16.5 before 16.5.1. A Regular Expression Denial of Service was possible by adding a large string in timeout input in gitlab-ci.yml file.

CNA Affected

[
  {
    "vendor": "GitLab",
    "product": "GitLab",
    "repo": "git://[email protected]:gitlab-org/gitlab.git",
    "versions": [
      {
        "version": "12.3",
        "status": "affected",
        "lessThan": "16.3.6",
        "versionType": "semver"
      },
      {
        "version": "16.4",
        "status": "affected",
        "lessThan": "16.4.2",
        "versionType": "semver"
      },
      {
        "version": "16.5",
        "status": "affected",
        "lessThan": "16.5.1",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]