CVE-2021-38203

btrfs in the Linux kernel before 5.13.4 allows attackers to cause a denial of service (deadlock) via processes that trigger allocation of new system chunks during times when there is a shortage of free space in the system space_info.

CVSS v3 5.5 MEDIUM
CVSS v2.0 2.1 LOW

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

2.1^/10

CVSS v2.0 : LOW

Vector : AV:L/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4	Mailing List Patch Vendor Advisory
https://github.com/torvalds/linux/commit/1cb3db1cf383a3c7dbda1aa0ce748b0958759947	Exploit Patch Third Party Advisory
https://security.netapp.com/advisory/ntap-20210902-0010/	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:netapp:hci_bootstrap_os:-:*:*:*:*:*:*:*

cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:*

Configuration 3 (hide)

OR	cpe:2.3:a:netapp:hci_management_node:-:::::::*
	cpe:2.3:a:netapp:solidfire:-:::::::*

Configuration 4 (hide)

AND

cpe:2.3:a:netapp:element_software:-:*:*:*:*:*:*:*

cpe:2.3:h:netapp:hci_storage_node:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-08-08 20:15

Updated : 2024-02-28 18:28

NVD link : CVE-2021-38203

Mitre link : CVE-2021-38203

CVE.ORG link : CVE-2021-38203

JSON object : View

Products Affected

netapp

hci_management_node
element_software
hci_bootstrap_os
hci_compute_node
hci_storage_node
solidfire

linux

linux_kernel

CWE

CWE-667

Improper Locking

{"id": "CVE-2021-38203", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 2.1, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "LOW", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2021-08-08T20:15:07.217", "references": [{"url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4", "tags": ["Mailing List", "Patch", "Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/torvalds/linux/commit/1cb3db1cf383a3c7dbda1aa0ce748b0958759947", "tags": ["Exploit", "Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://security.netapp.com/advisory/ntap-20210902-0010/", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-667"}]}], "descriptions": [{"lang": "en", "value": "btrfs in the Linux kernel before 5.13.4 allows attackers to cause a denial of service (deadlock) via processes that trigger allocation of new system chunks during times when there is a shortage of free space in the system space_info."}, {"lang": "es", "value": "btrfs en el kernel de Linux versiones anteriores a 5.13.4, permite a atacantes causar una denegaci\u00f3n de servicio (bloqueo) por medio de procesos que desencadenan la asignaci\u00f3n de nuevos trozos del sistema durante los momentos en que hay una escasez de espacio libre en el space_info del sistema"}], "lastModified": "2022-05-03T16:04:40.443", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4C85356F-2C6C-4FB9-B0CA-949711182223", "versionEndExcluding": "5.13.4"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:netapp:hci_bootstrap_os:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1C767AA1-88B7-48F0-9F31-A89D16DCD52C"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "AD7447BC-F315-4298-A822-549942FC118B"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A3C19813-E823-456A-B1CE-EC0684CE1953"}, {"criteria": "cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A6E9EF0C-AFA8-4F7B-9FDC-1E0F7C26E737"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:netapp:element_software:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "85DF4B3F-4BBC-42B7-B729-096934523D63"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:netapp:hci_storage_node:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "02DEB4FB-A21D-4CB1-B522-EEE5093E8521"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cve@mitre.org"}