CVE-2021-36155 - Vulnerability Details - OpenCVE

LengthPrefixedMessageReader in gRPC Swift 1.1.0 and earlier allocates buffers of arbitrary length, which allows remote attackers to cause uncontrolled resource consumption and deny service.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

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 0.00846.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

OR	cpe:2.3:a:linuxfoundation:grpc_swift:1.0.0:::::::*
	cpe:2.3:a:linuxfoundation:grpc_swift:1.1.0:::::::*
	cpe:2.3:a:linuxfoundation:grpc_swift:1.1.1:::::::*

No data.

No data.

Subscriptions

Vendors	Products
Linuxfoundation Subscribe	Grpc Swift Subscribe

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2023-1886	LengthPrefixedMessageReader in gRPC Swift 1.1.0 and earlier allocates buffers of arbitrary length, which allows remote attackers to cause uncontrolled resource consumption and deny service.
Github GHSA	GHSA-rxmj-hg9v-vp3p	Uncontrolled Resource Consumption in LengthPrefixedMessageReader

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35303
https://github.com/grpc/grpc-swift/releases
https://github.com/grpc/grpc-swift/security/advisories/GHSA-rxmj-hg9v-vp3p

History

No history.

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-07-09T11:11:10.000Z

Updated: 2024-08-04T00:47:43.824Z

Reserved: 2021-07-05T00:00:00.000Z

Link: CVE-2021-36155

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-07-09T12:15:08.127

Modified: 2024-11-21T06:13:12.937

Link: CVE-2021-36155

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-770

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "LengthPrefixedMessageReader in gRPC Swift 1.1.0 and earlier allocates buffers of arbitrary length, which allows remote attackers to cause uncontrolled resource consumption and deny service."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-07-09T11:11:10.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://github.com/grpc/grpc-swift/releases"}, {"tags": ["x_refsource_MISC"], "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35303"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/grpc/grpc-swift/security/advisories/GHSA-rxmj-hg9v-vp3p"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2021-36155", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "LengthPrefixedMessageReader in gRPC Swift 1.1.0 and earlier allocates buffers of arbitrary length, which allows remote attackers to cause uncontrolled resource consumption and deny service."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://github.com/grpc/grpc-swift/releases", "refsource": "MISC", "url": "https://github.com/grpc/grpc-swift/releases"}, {"name": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35303", "refsource": "MISC", "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35303"}, {"name": "https://github.com/grpc/grpc-swift/security/advisories/GHSA-rxmj-hg9v-vp3p", "refsource": "MISC", "url": "https://github.com/grpc/grpc-swift/security/advisories/GHSA-rxmj-hg9v-vp3p"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T00:47:43.824Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/grpc/grpc-swift/releases"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35303"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/grpc/grpc-swift/security/advisories/GHSA-rxmj-hg9v-vp3p"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2021-36155", "datePublished": "2021-07-09T11:11:10.000Z", "dateReserved": "2021-07-05T00:00:00.000Z", "dateUpdated": "2024-08-04T00:47:43.824Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:linuxfoundation:grpc_swift:1.0.0:*:*:*:*:*:*:*", "matchCriteriaId": "54DBEB87-579F-4445-AE7A-568ABC156B98", "vulnerable": true}, {"criteria": "cpe:2.3:a:linuxfoundation:grpc_swift:1.1.0:*:*:*:*:*:*:*", "matchCriteriaId": "B578662F-9EBE-4555-8EC2-929ECB2F8638", "vulnerable": true}, {"criteria": "cpe:2.3:a:linuxfoundation:grpc_swift:1.1.1:*:*:*:*:*:*:*", "matchCriteriaId": "86FC8B42-F425-4F74-A992-E5739997C1C5", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "LengthPrefixedMessageReader in gRPC Swift 1.1.0 and earlier allocates buffers of arbitrary length, which allows remote attackers to cause uncontrolled resource consumption and deny service."}, {"lang": "es", "value": "La funci\u00f3n LengthPrefixedMessageReader en gRPC Swift versiones 1.1.0 y anteriores asigna b\u00faferes de longitud arbitraria, lo que permite a atacantes remotos causar un consumo no controlado de recursos y denegar el servicio"}], "id": "CVE-2021-36155", "lastModified": "2024-11-21T06:13:12.937", "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": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-07-09T12:15:08.127", "references": [{"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35303"}, {"source": "cve@mitre.org", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://github.com/grpc/grpc-swift/releases"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://github.com/grpc/grpc-swift/security/advisories/GHSA-rxmj-hg9v-vp3p"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35303"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://github.com/grpc/grpc-swift/releases"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/grpc/grpc-swift/security/advisories/GHSA-rxmj-hg9v-vp3p"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-770"}], "source": "nvd@nist.gov", "type": "Primary"}]}