CVE-2021-39914 - Vulnerability Details - OpenCVE

A regular expression denial of service issue in GitLab versions 8.13 to 14.2.5, 14.3.0 to 14.3.3 and 14.4.0 could cause excessive usage of resources when a specially crafted username was used when provisioning a new user

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00176.

Key SSVC decision points have not yet been added.

Vendors	Products
Gitlab Subscribe	Gitlab Subscribe

Configuration 1 [-]

OR	cpe:2.3:a:gitlab:gitlab:::::community:::*
	cpe:2.3:a:gitlab:gitlab:::::enterprise:::*
	cpe:2.3:a:gitlab:gitlab:::::community:::*
	cpe:2.3:a:gitlab:gitlab:::::enterprise:::*
	cpe:2.3:a:gitlab:gitlab:14.4.0::::community:::
	cpe:2.3:a:gitlab:gitlab:14.4.0::::enterprise:::

No data.

No data.

Advisories

Source	ID	Title
EUVD	EUVD-2021-26270	A regular expression denial of service issue in GitLab versions 8.13 to 14.2.5, 14.3.0 to 14.3.3 and 14.4.0 could cause excessive usage of resources when a specially crafted username was used when provisioning a new user

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39914.json
https://gitlab.com/gitlab-org/gitlab/-/issues/289948

History

No history.

Projects

Sign in to view the affected projects.

MITRE

Status: PUBLISHED

Assigner: GitLab

Published: 2021-11-04T22:39:17

Updated: 2024-08-04T02:20:33.786Z

Reserved: 2021-08-23T00:00:00

Link: CVE-2021-39914

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-11-04T23:15:10.183

Modified: 2024-11-21T06:20:32.837

Link: CVE-2021-39914

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-400

{"containers": {"cna": {"affected": [{"product": "GitLab", "vendor": "GitLab", "versions": [{"status": "affected", "version": ">=8.13, <14.2.6"}, {"status": "affected", "version": ">=14.3.0, <14.3.4"}, {"status": "affected", "version": ">=14.4.0, <14.4.1"}]}], "credits": [{"lang": "en", "value": "This vulnerability has been discovered internally by the GitLab team"}], "descriptions": [{"lang": "en", "value": "A regular expression denial of service issue in GitLab versions 8.13 to 14.2.5, 14.3.0 to 14.3.3 and 14.4.0 could cause excessive usage of resources when a specially crafted username was used when provisioning a new user"}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 3.1, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"description": "Uncontrolled resource consumption in GitLab", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-11-04T22:39:17", "orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "shortName": "GitLab"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/289948"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39914.json"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@gitlab.com", "ID": "CVE-2021-39914", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "GitLab", "version": {"version_data": [{"version_value": ">=8.13, <14.2.6"}, {"version_value": ">=14.3.0, <14.3.4"}, {"version_value": ">=14.4.0, <14.4.1"}]}}]}, "vendor_name": "GitLab"}]}}, "credit": [{"lang": "eng", "value": "This vulnerability has been discovered internally by the GitLab team"}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "A regular expression denial of service issue in GitLab versions 8.13 to 14.2.5, 14.3.0 to 14.3.3 and 14.4.0 could cause excessive usage of resources when a specially crafted username was used when provisioning a new user"}]}, "impact": {"cvss": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 3, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Uncontrolled resource consumption in GitLab"}]}]}, "references": {"reference_data": [{"name": "https://gitlab.com/gitlab-org/gitlab/-/issues/289948", "refsource": "MISC", "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/289948"}, {"name": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39914.json", "refsource": "CONFIRM", "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39914.json"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T02:20:33.786Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/289948"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39914.json"}]}]}, "cveMetadata": {"assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "assignerShortName": "GitLab", "cveId": "CVE-2021-39914", "datePublished": "2021-11-04T22:39:17", "dateReserved": "2021-08-23T00:00:00", "dateUpdated": "2024-08-04T02:20:33.786Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*", "matchCriteriaId": "BDC22F02-6C58-4F97-8864-13533B8D856D", "versionEndExcluding": "14.2.6", "versionStartIncluding": "8.13.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*", "matchCriteriaId": "8260E67F-3155-42CE-9318-A42048E79815", "versionEndExcluding": "14.2.6", "versionStartIncluding": "8.13.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*", "matchCriteriaId": "89D408A9-D433-4674-9EFF-94C13094C8D1", "versionEndExcluding": "14.3.4", "versionStartIncluding": "14.3.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*", "matchCriteriaId": "79C91F49-B540-4D22-8CC9-E5CAD399E520", "versionEndExcluding": "14.3.4", "versionStartIncluding": "14.3.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:gitlab:gitlab:14.4.0:*:*:*:community:*:*:*", "matchCriteriaId": "33F825B9-51B3-44A9-ADC5-395B99F866E4", "vulnerable": true}, {"criteria": "cpe:2.3:a:gitlab:gitlab:14.4.0:*:*:*:enterprise:*:*:*", "matchCriteriaId": "0FC6A40A-F861-445A-BD61-1ACF7D7849B1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "A regular expression denial of service issue in GitLab versions 8.13 to 14.2.5, 14.3.0 to 14.3.3 and 14.4.0 could cause excessive usage of resources when a specially crafted username was used when provisioning a new user"}, {"lang": "es", "value": "Un problema de denegaci\u00f3n de servicio con expresiones regulares en GitLab versiones 8.13 a 14.2.5, 14.3.0 a 14.3.3 y 14.4.0, pod\u00eda causar un uso excesivo de recursos cuando se usaba un nombre de usuario especialmente dise\u00f1ado al aprovisionar un nuevo usuario"}], "id": "CVE-2021-39914", "lastModified": "2024-11-21T06:20:32.837", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 3.1, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 1.4, "source": "cve@gitlab.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-11-04T23:15:10.183", "references": [{"source": "cve@gitlab.com", "tags": ["Vendor Advisory"], "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39914.json"}, {"source": "cve@gitlab.com", "tags": ["Broken Link"], "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/289948"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39914.json"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link"], "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/289948"}], "sourceIdentifier": "cve@gitlab.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}], "source": "nvd@nist.gov", "type": "Primary"}]}