CVE-2021-47152
Vulnerability from cvelistv5
Published
2024-03-25 09:07
Modified
2024-11-04 12:00
Severity ?
EPSS score ?
Summary
mptcp: fix data stream corruption
References
{ "containers": { "adp": [ { "providerMetadata": { "dateUpdated": "2024-08-04T05:24:39.850Z", "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE" }, "references": [ { "tags": [ "x_transferred" ], "url": "https://git.kernel.org/stable/c/3267a061096efc91eda52c2a0c61ba76e46e4b34" }, { "tags": [ "x_transferred" ], "url": "https://git.kernel.org/stable/c/18e7f0580da15cac1e79d73683ada5a9e70980f8" }, { "tags": [ "x_transferred" ], "url": "https://git.kernel.org/stable/c/29249eac5225429b898f278230a6ca2baa1ae154" } ], "title": "CVE Program Container" }, { "metrics": [ { "other": { "content": { "id": "CVE-2021-47152", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "timestamp": "2024-09-10T15:54:51.146188Z", "version": "2.0.3" }, "type": "ssvc" } } ], "providerMetadata": { "dateUpdated": "2024-09-11T17:33:55.837Z", "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP" }, "title": "CISA ADP Vulnrichment" } ], "cna": { "affected": [ { "defaultStatus": "unaffected", "product": "Linux", "programFiles": [ "net/mptcp/protocol.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "lessThan": "3267a061096e", "status": "affected", "version": "18b683bff89d", "versionType": "git" }, { "lessThan": "18e7f0580da1", "status": "affected", "version": "18b683bff89d", "versionType": "git" }, { "lessThan": "29249eac5225", "status": "affected", "version": "18b683bff89d", "versionType": "git" } ] }, { "defaultStatus": "affected", "product": "Linux", "programFiles": [ "net/mptcp/protocol.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "status": "affected", "version": "5.7" }, { "lessThan": "5.7", "status": "unaffected", "version": "0", "versionType": "semver" }, { "lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.42", "versionType": "semver" }, { "lessThanOrEqual": "5.12.*", "status": "unaffected", "version": "5.12.9", "versionType": "semver" }, { "lessThanOrEqual": "*", "status": "unaffected", "version": "5.13", "versionType": "original_commit_for_fix" } ] } ], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: fix data stream corruption\n\nMaxim reported several issues when forcing a TCP transparent proxy\nto use the MPTCP protocol for the inbound connections. He also\nprovided a clean reproducer.\n\nThe problem boils down to \u0027mptcp_frag_can_collapse_to()\u0027 assuming\nthat only MPTCP will use the given page_frag.\n\nIf others - e.g. the plain TCP protocol - allocate page fragments,\nwe can end-up re-using already allocated memory for mptcp_data_frag.\n\nFix the issue ensuring that the to-be-expanded data fragment is\nlocated at the current page frag end.\n\nv1 -\u003e v2:\n - added missing fixes tag (Mat)" } ], "providerMetadata": { "dateUpdated": "2024-11-04T12:00:29.864Z", "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux" }, "references": [ { "url": "https://git.kernel.org/stable/c/3267a061096efc91eda52c2a0c61ba76e46e4b34" }, { "url": "https://git.kernel.org/stable/c/18e7f0580da15cac1e79d73683ada5a9e70980f8" }, { "url": "https://git.kernel.org/stable/c/29249eac5225429b898f278230a6ca2baa1ae154" } ], "title": "mptcp: fix data stream corruption", "x_generator": { "engine": "bippy-9e1c9544281a" } } }, "cveMetadata": { "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "assignerShortName": "Linux", "cveId": "CVE-2021-47152", "datePublished": "2024-03-25T09:07:47.235Z", "dateReserved": "2024-03-04T18:12:48.846Z", "dateUpdated": "2024-11-04T12:00:29.864Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2021-47152\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-25T09:15:09.357\",\"lastModified\":\"2024-03-25T13:47:14.087\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmptcp: fix data stream corruption\\n\\nMaxim reported several issues when forcing a TCP transparent proxy\\nto use the MPTCP protocol for the inbound connections. He also\\nprovided a clean reproducer.\\n\\nThe problem boils down to \u0027mptcp_frag_can_collapse_to()\u0027 assuming\\nthat only MPTCP will use the given page_frag.\\n\\nIf others - e.g. the plain TCP protocol - allocate page fragments,\\nwe can end-up re-using already allocated memory for mptcp_data_frag.\\n\\nFix the issue ensuring that the to-be-expanded data fragment is\\nlocated at the current page frag end.\\n\\nv1 -\u003e v2:\\n - added missing fixes tag (Mat)\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: mptcp: corrige la corrupci\u00f3n del flujo de datos Maxim inform\u00f3 varios problemas al forzar a un proxy transparente TCP a utilizar el protocolo MPTCP para las conexiones entrantes. Tambi\u00e9n proporcion\u00f3 un reproductor limpio. El problema se reduce a \u0027mptcp_frag_can_collapse_to()\u0027 suponiendo que s\u00f3lo MPTCP utilizar\u00e1 el page_frag dado. Si otros (por ejemplo, el protocolo TCP simple) asignan fragmentos de p\u00e1gina, podemos terminar reutilizando la memoria ya asignada para mptcp_data_frag. Solucione el problema asegur\u00e1ndose de que el fragmento de datos que se va a expandir est\u00e9 ubicado al final del fragmento de la p\u00e1gina actual. v1 -\u0026gt; v2: - se agreg\u00f3 la etiqueta de correcciones faltantes (Mat)\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/18e7f0580da15cac1e79d73683ada5a9e70980f8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/29249eac5225429b898f278230a6ca2baa1ae154\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3267a061096efc91eda52c2a0c61ba76e46e4b34\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}" } }
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Sightings
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.