cve-2021-47159
Vulnerability from cvelistv5
Published
2024-03-25 09:16
Modified
2024-11-04 12:00
Severity ?
EPSS score ?
Summary
net: dsa: fix a crash if ->get_sset_count() fails
References
{ "containers": { "adp": [ { "providerMetadata": { "dateUpdated": "2024-08-04T05:24:39.963Z", "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE" }, "references": [ { "tags": [ "x_transferred" ], "url": "https://git.kernel.org/stable/c/0f2cb08c57edefb0e7b5045e0e3e9980a3d3aa37" }, { "tags": [ "x_transferred" ], "url": "https://git.kernel.org/stable/c/ce5355f140a7987011388c7e30c4f8fbe180d3e8" }, { "tags": [ "x_transferred" ], "url": "https://git.kernel.org/stable/c/caff86f85512b8e0d9830e8b8b0dfe13c68ce5b6" }, { "tags": [ "x_transferred" ], "url": "https://git.kernel.org/stable/c/7b22466648a4f8e3e94f57ca428d1531866d1373" }, { "tags": [ "x_transferred" ], "url": "https://git.kernel.org/stable/c/a269333fa5c0c8e53c92b5a28a6076a28cde3e83" } ], "title": "CVE Program Container" }, { "metrics": [ { "other": { "content": { "id": "CVE-2021-47159", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "timestamp": "2024-09-10T15:54:44.376467Z", "version": "2.0.3" }, "type": "ssvc" } } ], "providerMetadata": { "dateUpdated": "2024-09-11T17:33:54.672Z", "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP" }, "title": "CISA ADP Vulnrichment" } ], "cna": { "affected": [ { "defaultStatus": "unaffected", "product": "Linux", "programFiles": [ "net/dsa/master.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "lessThan": "0f2cb08c57ed", "status": "affected", "version": "badf3ada60ab", "versionType": "git" }, { "lessThan": "ce5355f140a7", "status": "affected", "version": "badf3ada60ab", "versionType": "git" }, { "lessThan": "caff86f85512", "status": "affected", "version": "badf3ada60ab", "versionType": "git" }, { "lessThan": "7b22466648a4", "status": "affected", "version": "badf3ada60ab", "versionType": "git" }, { "lessThan": "a269333fa5c0", "status": "affected", "version": "badf3ada60ab", "versionType": "git" } ] }, { "defaultStatus": "affected", "product": "Linux", "programFiles": [ "net/dsa/master.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "status": "affected", "version": "4.7" }, { "lessThan": "4.7", "status": "unaffected", "version": "0", "versionType": "semver" }, { "lessThanOrEqual": "4.19.*", "status": "unaffected", "version": "4.19.193", "versionType": "semver" }, { "lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.124", "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\nnet: dsa: fix a crash if -\u003eget_sset_count() fails\n\nIf ds-\u003eops-\u003eget_sset_count() fails then it \"count\" is a negative error\ncode such as -EOPNOTSUPP. Because \"i\" is an unsigned int, the negative\nerror code is type promoted to a very high value and the loop will\ncorrupt memory until the system crashes.\n\nFix this by checking for error codes and changing the type of \"i\" to\njust int." } ], "providerMetadata": { "dateUpdated": "2024-11-04T12:00:33.418Z", "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux" }, "references": [ { "url": "https://git.kernel.org/stable/c/0f2cb08c57edefb0e7b5045e0e3e9980a3d3aa37" }, { "url": "https://git.kernel.org/stable/c/ce5355f140a7987011388c7e30c4f8fbe180d3e8" }, { "url": "https://git.kernel.org/stable/c/caff86f85512b8e0d9830e8b8b0dfe13c68ce5b6" }, { "url": "https://git.kernel.org/stable/c/7b22466648a4f8e3e94f57ca428d1531866d1373" }, { "url": "https://git.kernel.org/stable/c/a269333fa5c0c8e53c92b5a28a6076a28cde3e83" } ], "title": "net: dsa: fix a crash if -\u003eget_sset_count() fails", "x_generator": { "engine": "bippy-9e1c9544281a" } } }, "cveMetadata": { "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "assignerShortName": "Linux", "cveId": "CVE-2021-47159", "datePublished": "2024-03-25T09:16:13.815Z", "dateReserved": "2024-03-25T09:12:14.109Z", "dateUpdated": "2024-11-04T12:00:33.418Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2021-47159\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-25T10:15:08.330\",\"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\\nnet: dsa: fix a crash if -\u003eget_sset_count() fails\\n\\nIf ds-\u003eops-\u003eget_sset_count() fails then it \\\"count\\\" is a negative error\\ncode such as -EOPNOTSUPP. Because \\\"i\\\" is an unsigned int, the negative\\nerror code is type promoted to a very high value and the loop will\\ncorrupt memory until the system crashes.\\n\\nFix this by checking for error codes and changing the type of \\\"i\\\" to\\njust int.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: dsa: corrige un bloqueo si -\u0026gt;get_sset_count() falla. Si ds-\u0026gt;ops-\u0026gt;get_sset_count() falla, entonces \\\"count\\\" es un c\u00f3digo de error negativo como - EOPNOTSUPP. Debido a que \\\"i\\\" es un int sin signo, el c\u00f3digo de error negativo se promociona a un valor muy alto y el bucle corromper\u00e1 la memoria hasta que el sistema falle. Solucione este problema buscando c\u00f3digos de error y cambiando el tipo de \\\"i\\\" a solo int.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0f2cb08c57edefb0e7b5045e0e3e9980a3d3aa37\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7b22466648a4f8e3e94f57ca428d1531866d1373\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a269333fa5c0c8e53c92b5a28a6076a28cde3e83\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/caff86f85512b8e0d9830e8b8b0dfe13c68ce5b6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ce5355f140a7987011388c7e30c4f8fbe180d3e8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}" } }
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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