CVE-2021-41073 (GCVE-0-2021-41073)
Vulnerability from cvelistv5 – Published: 2021-09-19 16:02 – Updated: 2024-08-04 02:59
VLAI
EPSS
VEX
Summary
loop_rw_iter in fs/io_uring.c in the Linux kernel 5.10 through 5.14.6 allows local users to gain privileges by using IORING_OP_PROVIDE_BUFFERS to trigger a free of a kernel buffer, as demonstrated by using /proc/<pid>/maps for exploitation.
Severity
7.8 (High)
CWE
- n/a
Assigner
References
7 references
| URL | Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2021/09/18/2 | mailing-listx_refsource_MLIST |
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_MISC |
| https://www.debian.org/security/2021/dsa-4978 | vendor-advisoryx_refsource_DEBIAN |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://security.netapp.com/advisory/ntap-2021101… | x_refsource_CONFIRM |
| http://www.openwall.com/lists/oss-security/2022/06/04/4 | mailing-listx_refsource_MLIST |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T02:59:31.000Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "[oss-security] 20210918 Linux Kernel: Exploitable vulnerability in io_uring",
"tags": [
"mailing-list",
"x_refsource_MLIST",
"x_transferred"
],
"url": "http://www.openwall.com/lists/oss-security/2021/09/18/2"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "http://www.openwall.com/lists/oss-security/2021/09/18/2"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=16c8d2df7ec0eed31b7d3b61cb13206a7fb930cc"
},
{
"name": "DSA-4978",
"tags": [
"vendor-advisory",
"x_refsource_DEBIAN",
"x_transferred"
],
"url": "https://www.debian.org/security/2021/dsa-4978"
},
{
"name": "FEDORA-2021-884d245ef8",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAP4TXEZ7J4EZQMQW5SIJMWXG7WZT3F7/"
},
{
"name": "FEDORA-2021-e0d6215753",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J7KSMIOQ4377CVTHMWNGNCWHMCRFRP2T/"
},
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://security.netapp.com/advisory/ntap-20211014-0003/"
},
{
"name": "[oss-security] 20220604 Re: Linux Kernel: Exploitable vulnerability in io_uring",
"tags": [
"mailing-list",
"x_refsource_MLIST",
"x_transferred"
],
"url": "http://www.openwall.com/lists/oss-security/2022/06/04/4"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "loop_rw_iter in fs/io_uring.c in the Linux kernel 5.10 through 5.14.6 allows local users to gain privileges by using IORING_OP_PROVIDE_BUFFERS to trigger a free of a kernel buffer, as demonstrated by using /proc/\u003cpid\u003e/maps for exploitation."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-06-04T23:06:09.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"name": "[oss-security] 20210918 Linux Kernel: Exploitable vulnerability in io_uring",
"tags": [
"mailing-list",
"x_refsource_MLIST"
],
"url": "http://www.openwall.com/lists/oss-security/2021/09/18/2"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "http://www.openwall.com/lists/oss-security/2021/09/18/2"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=16c8d2df7ec0eed31b7d3b61cb13206a7fb930cc"
},
{
"name": "DSA-4978",
"tags": [
"vendor-advisory",
"x_refsource_DEBIAN"
],
"url": "https://www.debian.org/security/2021/dsa-4978"
},
{
"name": "FEDORA-2021-884d245ef8",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAP4TXEZ7J4EZQMQW5SIJMWXG7WZT3F7/"
},
{
"name": "FEDORA-2021-e0d6215753",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J7KSMIOQ4377CVTHMWNGNCWHMCRFRP2T/"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://security.netapp.com/advisory/ntap-20211014-0003/"
},
{
"name": "[oss-security] 20220604 Re: Linux Kernel: Exploitable vulnerability in io_uring",
"tags": [
"mailing-list",
"x_refsource_MLIST"
],
"url": "http://www.openwall.com/lists/oss-security/2022/06/04/4"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2021-41073",
"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": "loop_rw_iter in fs/io_uring.c in the Linux kernel 5.10 through 5.14.6 allows local users to gain privileges by using IORING_OP_PROVIDE_BUFFERS to trigger a free of a kernel buffer, as demonstrated by using /proc/\u003cpid\u003e/maps for exploitation."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "[oss-security] 20210918 Linux Kernel: Exploitable vulnerability in io_uring",
"refsource": "MLIST",
"url": "http://www.openwall.com/lists/oss-security/2021/09/18/2"
},
{
"name": "http://www.openwall.com/lists/oss-security/2021/09/18/2",
"refsource": "MISC",
"url": "http://www.openwall.com/lists/oss-security/2021/09/18/2"
},
{
"name": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=16c8d2df7ec0eed31b7d3b61cb13206a7fb930cc",
"refsource": "MISC",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=16c8d2df7ec0eed31b7d3b61cb13206a7fb930cc"
},
{
"name": "DSA-4978",
"refsource": "DEBIAN",
"url": "https://www.debian.org/security/2021/dsa-4978"
},
{
"name": "FEDORA-2021-884d245ef8",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PAP4TXEZ7J4EZQMQW5SIJMWXG7WZT3F7/"
},
{
"name": "FEDORA-2021-e0d6215753",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/J7KSMIOQ4377CVTHMWNGNCWHMCRFRP2T/"
},
{
"name": "https://security.netapp.com/advisory/ntap-20211014-0003/",
"refsource": "CONFIRM",
"url": "https://security.netapp.com/advisory/ntap-20211014-0003/"
},
{
"name": "[oss-security] 20220604 Re: Linux Kernel: Exploitable vulnerability in io_uring",
"refsource": "MLIST",
"url": "http://www.openwall.com/lists/oss-security/2022/06/04/4"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2021-41073",
"datePublished": "2021-09-19T16:02:30.000Z",
"dateReserved": "2021-09-14T00:00:00.000Z",
"dateUpdated": "2024-08-04T02:59:31.000Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2021-41073",
"date": "2026-09-16",
"epss": "0.01705",
"percentile": "0.76112"
},
"fkie_nvd": {
"configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.10\", \"versionEndExcluding\": \"5.10.68\", \"matchCriteriaId\": \"9538BFBE-167E-4851-8413-99EB98000A80\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.11\", \"versionEndExcluding\": \"5.14.7\", \"matchCriteriaId\": \"5BAC6E15-D736-4892-8AF4-2A158BBD58D1\"}]}]}, {\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73\"}]}]}, {\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"E460AA51-FCDA-46B9-AE97-E6676AA5E194\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"A930E247-0B43-43CB-98FF-6CE7B8189835\"}]}]}, {\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"5C2089EE-5D7F-47EC-8EA5-0F69790564C4\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:netapp:solidfire_baseboard_management_controller:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"83FAD281-BF77-4A8A-8F29-B557A6903BE0\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"234DEFE0-5CE5-4B0A-96B8-5D227CB8ED31\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"CDDF61B7-EC5C-467C-B710-B89F502CD04F\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"6770B6C3-732E-4E22-BF1C-2D2FD610061C\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"9F9C8C20-42EB-4AB5-BD97-212DEB070C43\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"7FFF7106-ED78-49BA-9EC5-B889E3685D53\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"E63D8B0F-006E-4801-BF9D-1C001BBFB4F9\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"56409CEC-5A1E-4450-AA42-641E459CC2AF\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"B06F4839-D16A-4A61-9BB5-55B13F41E47F\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"108A2215-50FB-4074-94CF-C130FA14566D\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"7AFC73CE-ABB9-42D3-9A71-3F5BC5381E0E\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"32F0B6C0-F930-480D-962B-3F4EFDCC13C7\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"803BC414-B250-4E3A-A478-A3881340D6B8\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"0FEB3337-BFDE-462A-908B-176F92053CEC\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"736AEAE9-782B-4F71-9893-DED53367E102\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"D0B4AD8A-F172-4558-AEC6-FF424BA2D912\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"8497A4C9-8474-4A62-8331-3FE862ED4098\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"234DEFE0-5CE5-4B0A-96B8-5D227CB8ED31\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"CDDF61B7-EC5C-467C-B710-B89F502CD04F\"}]}]}]",
"descriptions": "[{\"lang\": \"en\", \"value\": \"loop_rw_iter in fs/io_uring.c in the Linux kernel 5.10 through 5.14.6 allows local users to gain privileges by using IORING_OP_PROVIDE_BUFFERS to trigger a free of a kernel buffer, as demonstrated by using /proc/\u003cpid\u003e/maps for exploitation.\"}, {\"lang\": \"es\", \"value\": \"La funci\\u00f3n loop_rw_iter en fs/io_uring.c en el kernel de Linux desde la versi\\u00f3n 5.10 hasta la versi\\u00f3n 5.14.6 permite a los usuarios locales ganar privilegios mediante el uso de IORING_OP_PROVIDE_BUFFERS para desencadenar una liberaci\\u00f3n de un b\\u00fafer del kernel, como se ha demostrado utilizando /proc//maps para su explotaci\\u00f3n\"}]",
"id": "CVE-2021-41073",
"lastModified": "2024-11-21T06:25:23.367",
"metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"baseScore\": 7.8, \"baseSeverity\": \"HIGH\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 1.8, \"impactScore\": 5.9}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:L/AC:L/Au:N/C:C/I:C/A:C\", \"baseScore\": 7.2, \"accessVector\": \"LOCAL\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"COMPLETE\", \"integrityImpact\": \"COMPLETE\", \"availabilityImpact\": \"COMPLETE\"}, \"baseSeverity\": \"HIGH\", \"exploitabilityScore\": 3.9, \"impactScore\": 10.0, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
"published": "2021-09-19T17:15:07.227",
"references": "[{\"url\": \"http://www.openwall.com/lists/oss-security/2021/09/18/2\", \"source\": \"cve@mitre.org\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2021/09/18/2\", \"source\": \"cve@mitre.org\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2022/06/04/4\", \"source\": \"cve@mitre.org\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=16c8d2df7ec0eed31b7d3b61cb13206a7fb930cc\", \"source\": \"cve@mitre.org\", \"tags\": [\"Patch\", \"Vendor Advisory\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J7KSMIOQ4377CVTHMWNGNCWHMCRFRP2T/\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAP4TXEZ7J4EZQMQW5SIJMWXG7WZT3F7/\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://security.netapp.com/advisory/ntap-20211014-0003/\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://www.debian.org/security/2021/dsa-4978\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2021/09/18/2\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2021/09/18/2\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2022/06/04/4\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=16c8d2df7ec0eed31b7d3b61cb13206a7fb930cc\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\", \"Vendor Advisory\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J7KSMIOQ4377CVTHMWNGNCWHMCRFRP2T/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAP4TXEZ7J4EZQMQW5SIJMWXG7WZT3F7/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://security.netapp.com/advisory/ntap-20211014-0003/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://www.debian.org/security/2021/dsa-4978\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}]",
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-763\"}]}]"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2021-41073\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2021-09-19T17:15:07.227\",\"lastModified\":\"2026-06-17T04:07:49.240\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"loop_rw_iter in fs/io_uring.c in the Linux kernel 5.10 through 5.14.6 allows local users to gain privileges by using IORING_OP_PROVIDE_BUFFERS to trigger a free of a kernel buffer, as demonstrated by using /proc/\u003cpid\u003e/maps for exploitation.\"},{\"lang\":\"es\",\"value\":\"La funci\u00f3n loop_rw_iter en fs/io_uring.c en el kernel de Linux desde la versi\u00f3n 5.10 hasta la versi\u00f3n 5.14.6 permite a los usuarios locales ganar privilegios mediante el uso de IORING_OP_PROVIDE_BUFFERS para desencadenar una liberaci\u00f3n de un b\u00fafer del kernel, como se ha demostrado utilizando /proc//maps para su explotaci\u00f3n\"}],\"affected\":[{\"source\":\"cve@mitre.org\",\"affectedData\":[{\"vendor\":\"n/a\",\"product\":\"n/a\",\"versions\":[{\"version\":\"n/a\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:N/C:C/I:C/A:C\",\"baseScore\":7.2,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"COMPLETE\",\"integrityImpact\":\"COMPLETE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":3.9,\"impactScore\":10.0,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-763\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.10\",\"versionEndExcluding\":\"5.10.68\",\"matchCriteriaId\":\"9538BFBE-167E-4851-8413-99EB98000A80\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.14.7\",\"matchCriteriaId\":\"5BAC6E15-D736-4892-8AF4-2A158BBD58D1\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E460AA51-FCDA-46B9-AE97-E6676AA5E194\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A930E247-0B43-43CB-98FF-6CE7B8189835\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5C2089EE-5D7F-47EC-8EA5-0F69790564C4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:solidfire_baseboard_management_controller:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"83FAD281-BF77-4A8A-8F29-B557A6903BE0\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"234DEFE0-5CE5-4B0A-96B8-5D227CB8ED31\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CDDF61B7-EC5C-467C-B710-B89F502CD04F\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"6770B6C3-732E-4E22-BF1C-2D2FD610061C\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9F9C8C20-42EB-4AB5-BD97-212DEB070C43\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7FFF7106-ED78-49BA-9EC5-B889E3685D53\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E63D8B0F-006E-4801-BF9D-1C001BBFB4F9\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"56409CEC-5A1E-4450-AA42-641E459CC2AF\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B06F4839-D16A-4A61-9BB5-55B13F41E47F\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"108A2215-50FB-4074-94CF-C130FA14566D\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7AFC73CE-ABB9-42D3-9A71-3F5BC5381E0E\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"32F0B6C0-F930-480D-962B-3F4EFDCC13C7\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"803BC414-B250-4E3A-A478-A3881340D6B8\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0FEB3337-BFDE-462A-908B-176F92053CEC\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"736AEAE9-782B-4F71-9893-DED53367E102\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D0B4AD8A-F172-4558-AEC6-FF424BA2D912\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"8497A4C9-8474-4A62-8331-3FE862ED4098\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"234DEFE0-5CE5-4B0A-96B8-5D227CB8ED31\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CDDF61B7-EC5C-467C-B710-B89F502CD04F\"}]}]}],\"references\":[{\"url\":\"http://www.openwall.com/lists/oss-security/2021/09/18/2\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2021/09/18/2\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2021/09/18/2\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2021/09/18/2\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2022/06/04/4\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=16c8d2df7ec0eed31b7d3b61cb13206a7fb930cc\",\"source\":\"cve@mitre.org\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J7KSMIOQ4377CVTHMWNGNCWHMCRFRP2T/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAP4TXEZ7J4EZQMQW5SIJMWXG7WZT3F7/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://security.netapp.com/advisory/ntap-20211014-0003/\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.debian.org/security/2021/dsa-4978\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2021/09/18/2\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2021/09/18/2\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2021/09/18/2\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2021/09/18/2\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2022/06/04/4\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=16c8d2df7ec0eed31b7d3b61cb13206a7fb930cc\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J7KSMIOQ4377CVTHMWNGNCWHMCRFRP2T/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAP4TXEZ7J4EZQMQW5SIJMWXG7WZT3F7/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://security.netapp.com/advisory/ntap-20211014-0003/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.debian.org/security/2021/dsa-4978\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}",
"redhat_vex": {
"aggregate_severity": "Important",
"current_release_date": "2026-06-28T06:57:16+00:00",
"cve": "CVE-2021-41073",
"id": "CVE-2021-41073",
"initial_release_date": "2021-09-19T00:00:00+00:00",
"product_status:known_not_affected": "198",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: local user privilege escalation via loop_rw_iter in fs/io_uring.c",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-41073.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "important",
"current_release_date": "2026-09-05T23:44:05Z",
"cve": "CVE-2021-41073",
"id": "CVE-2021-41073",
"initial_release_date": "2023-02-15T03:37:48Z",
"product_status:known_not_affected": "340",
"product_status:recommended": "335",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2021-41073",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2021-41073.json",
"version": "22"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…