CVE-2021-40839 - Vulnerability Details - OpenCVE

The rencode package through 1.0.6 for Python allows an infinite loop in typecode decoding (such as via ;\x2f\x7f), enabling a remote attack that consumes CPU and memory.

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.

Key SSVC decision points have not yet been added.

Vendors	Products
Fedoraproject	Fedora
Rencode Project	Rencode

Configuration 1 [-]

cpe:2.3:a:rencode_project:rencode:*:*:*:*:*:python:*:*

Configuration 2 [-]

OR	cpe:2.3:o:fedoraproject:fedora:34:::::::*
	cpe:2.3:o:fedoraproject:fedora:35:::::::*

No data.

References

Link	Providers
https://github.com/aresch/rencode/commit/572ff74586d9b1daab904c6f7f7009ce0143bb75
https://github.com/aresch/rencode/pull/29
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMVQRPDVSVZNGGX57CFKCYT3DEYO4QB6/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MCLETLGVM5DBX6QNHQFW6TWGO5T3DENY/
https://pypi.org/project/rencode/#history
https://seclists.org/fulldisclosure/2021/Sep/16
https://security.netapp.com/advisory/ntap-20211008-0001/

History

No history.

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-09-10T01:03:33

Updated: 2024-08-04T02:51:07.399Z

Reserved: 2021-09-10T00:00:00

Link: CVE-2021-40839

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-09-10T02:15:07.933

Modified: 2024-11-21T06:24:53.713

Link: CVE-2021-40839

Redhat

No data.

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "The rencode package through 1.0.6 for Python allows an infinite loop in typecode decoding (such as via ;\\x2f\\x7f), enabling a remote attack that consumes CPU and memory."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2022-02-15T03:06:13", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://github.com/aresch/rencode/pull/29"}, {"tags": ["x_refsource_MISC"], "url": "https://seclists.org/fulldisclosure/2021/Sep/16"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/aresch/rencode/commit/572ff74586d9b1daab904c6f7f7009ce0143bb75"}, {"tags": ["x_refsource_MISC"], "url": "https://pypi.org/project/rencode/#history"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://security.netapp.com/advisory/ntap-20211008-0001/"}, {"name": "FEDORA-2022-02340931ec", "tags": ["vendor-advisory", "x_refsource_FEDORA"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMVQRPDVSVZNGGX57CFKCYT3DEYO4QB6/"}, {"name": "FEDORA-2022-1033a2718b", "tags": ["vendor-advisory", "x_refsource_FEDORA"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MCLETLGVM5DBX6QNHQFW6TWGO5T3DENY/"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2021-40839", "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": "The rencode package through 1.0.6 for Python allows an infinite loop in typecode decoding (such as via ;\\x2f\\x7f), enabling a remote attack that consumes CPU and memory."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://github.com/aresch/rencode/pull/29", "refsource": "MISC", "url": "https://github.com/aresch/rencode/pull/29"}, {"name": "https://seclists.org/fulldisclosure/2021/Sep/16", "refsource": "MISC", "url": "https://seclists.org/fulldisclosure/2021/Sep/16"}, {"name": "https://github.com/aresch/rencode/commit/572ff74586d9b1daab904c6f7f7009ce0143bb75", "refsource": "MISC", "url": "https://github.com/aresch/rencode/commit/572ff74586d9b1daab904c6f7f7009ce0143bb75"}, {"name": "https://pypi.org/project/rencode/#history", "refsource": "MISC", "url": "https://pypi.org/project/rencode/#history"}, {"name": "https://security.netapp.com/advisory/ntap-20211008-0001/", "refsource": "CONFIRM", "url": "https://security.netapp.com/advisory/ntap-20211008-0001/"}, {"name": "FEDORA-2022-02340931ec", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BMVQRPDVSVZNGGX57CFKCYT3DEYO4QB6/"}, {"name": "FEDORA-2022-1033a2718b", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MCLETLGVM5DBX6QNHQFW6TWGO5T3DENY/"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T02:51:07.399Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/aresch/rencode/pull/29"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://seclists.org/fulldisclosure/2021/Sep/16"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/aresch/rencode/commit/572ff74586d9b1daab904c6f7f7009ce0143bb75"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://pypi.org/project/rencode/#history"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://security.netapp.com/advisory/ntap-20211008-0001/"}, {"name": "FEDORA-2022-02340931ec", "tags": ["vendor-advisory", "x_refsource_FEDORA", "x_transferred"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMVQRPDVSVZNGGX57CFKCYT3DEYO4QB6/"}, {"name": "FEDORA-2022-1033a2718b", "tags": ["vendor-advisory", "x_refsource_FEDORA", "x_transferred"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MCLETLGVM5DBX6QNHQFW6TWGO5T3DENY/"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2021-40839", "datePublished": "2021-09-10T01:03:33", "dateReserved": "2021-09-10T00:00:00", "dateUpdated": "2024-08-04T02:51:07.399Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:rencode_project:rencode:*:*:*:*:*:python:*:*", "matchCriteriaId": "F5EB73F9-FA9E-4B27-8EFE-698A89423808", "versionEndIncluding": "1.0.6", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*", "matchCriteriaId": "A930E247-0B43-43CB-98FF-6CE7B8189835", "vulnerable": true}, {"criteria": "cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*", "matchCriteriaId": "80E516C0-98A4-4ADE-B69F-66A772E2BAAA", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "The rencode package through 1.0.6 for Python allows an infinite loop in typecode decoding (such as via ;\\x2f\\x7f), enabling a remote attack that consumes CPU and memory."}, {"lang": "es", "value": "El paquete rencode versiones hasta 1.0.6 para Python, permite un bucle infinito en la decodificaci\u00f3n de typecode (como por medio de ;x2f\\x7f), permitiendo un ataque remoto que consume CPU y memoria"}], "id": "CVE-2021-40839", "lastModified": "2024-11-21T06:24:53.713", "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": "2021-09-10T02:15:07.933", "references": [{"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/aresch/rencode/commit/572ff74586d9b1daab904c6f7f7009ce0143bb75"}, {"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/aresch/rencode/pull/29"}, {"source": "cve@mitre.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMVQRPDVSVZNGGX57CFKCYT3DEYO4QB6/"}, {"source": "cve@mitre.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MCLETLGVM5DBX6QNHQFW6TWGO5T3DENY/"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://pypi.org/project/rencode/#history"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://seclists.org/fulldisclosure/2021/Sep/16"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20211008-0001/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/aresch/rencode/commit/572ff74586d9b1daab904c6f7f7009ce0143bb75"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/aresch/rencode/pull/29"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMVQRPDVSVZNGGX57CFKCYT3DEYO4QB6/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MCLETLGVM5DBX6QNHQFW6TWGO5T3DENY/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://pypi.org/project/rencode/#history"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://seclists.org/fulldisclosure/2021/Sep/16"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20211008-0001/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-835"}], "source": "nvd@nist.gov", "type": "Primary"}]}