{ "dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": { "state": "PUBLISHED", "cveId": "CVE-2021-3996", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "dateUpdated": "2024-10-15T15:26:56.079Z", "dateReserved": "2021-11-22T00:00:00.000Z", "datePublished": "2022-08-23T00:00:00.000Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2024-01-07T09:06:22.825Z" }, "descriptions": [ { "lang": "en", "value": "A logic error was found in the libmount library of util-linux in the function that allows an unprivileged user to unmount a FUSE filesystem. This flaw allows a local user on a vulnerable system to unmount other users' filesystems that are either world-writable themselves (like /tmp) or mounted in a world-writable directory. An attacker may use this flaw to cause a denial of service to applications that use the affected filesystems." } ], "affected": [ { "vendor": "n/a", "product": "util-linux", "versions": [ { "version": "Fixed in util-linux v2.37.3", "status": "affected" } ] } ], "references": [ { "url": "https://mirrors.edge.kernel.org/pub/linux/utils/util-linux/v2.37/v2.37.3-ReleaseNotes" }, { "url": "https://github.com/util-linux/util-linux/commit/166e87368ae88bf31112a30e078cceae637f4cdb" }, { "url": "https://www.openwall.com/lists/oss-security/2022/01/24/2" }, { "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2024628" }, { "url": "https://access.redhat.com/security/cve/CVE-2021-3996" }, { "name": "[oss-security] 20221130 Race condition in snap-confine's must_mkdir_and_open_with_perms() (CVE-2022-3328)", "tags": [ "mailing-list" ], "url": "http://www.openwall.com/lists/oss-security/2022/11/30/2" }, { "name": "20221208 Race condition in snap-confine's must_mkdir_and_open_with_perms() (CVE-2022-3328)", "tags": [ "mailing-list" ], "url": "http://seclists.org/fulldisclosure/2022/Dec/4" }, { "url": "http://packetstormsecurity.com/files/170176/snap-confine-must_mkdir_and_open_with_perms-Race-Condition.html" }, { "url": "https://security.netapp.com/advisory/ntap-20221209-0002/" }, { "name": "GLSA-202401-08", "tags": [ "vendor-advisory" ], "url": "https://security.gentoo.org/glsa/202401-08" } ], "problemTypes": [ { "descriptions": [ { "type": "CWE", "lang": "en", "description": "CWE-552 - Files or Directories Accessible to External Parties", "cweId": "CWE-552" } ] } ] }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T17:16:02.913Z" }, "title": "CVE Program Container", "references": [ { "url": "https://mirrors.edge.kernel.org/pub/linux/utils/util-linux/v2.37/v2.37.3-ReleaseNotes", "tags": [ "x_transferred" ] }, { "url": "https://github.com/util-linux/util-linux/commit/166e87368ae88bf31112a30e078cceae637f4cdb", "tags": [ "x_transferred" ] }, { "url": "https://www.openwall.com/lists/oss-security/2022/01/24/2", "tags": [ "x_transferred" ] }, { "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2024628", "tags": [ "x_transferred" ] }, { "url": "https://access.redhat.com/security/cve/CVE-2021-3996", "tags": [ "x_transferred" ] }, { "name": "[oss-security] 20221130 Race condition in snap-confine's must_mkdir_and_open_with_perms() (CVE-2022-3328)", "tags": [ "mailing-list", "x_transferred" ], "url": "http://www.openwall.com/lists/oss-security/2022/11/30/2" }, { "name": "20221208 Race condition in snap-confine's must_mkdir_and_open_with_perms() (CVE-2022-3328)", "tags": [ "mailing-list", "x_transferred" ], "url": "http://seclists.org/fulldisclosure/2022/Dec/4" }, { "url": "http://packetstormsecurity.com/files/170176/snap-confine-must_mkdir_and_open_with_perms-Race-Condition.html", "tags": [ "x_transferred" ] }, { "url": "https://security.netapp.com/advisory/ntap-20221209-0002/", "tags": [ "x_transferred" ] }, { "name": "GLSA-202401-08", "tags": [ "vendor-advisory", "x_transferred" ], "url": "https://security.gentoo.org/glsa/202401-08" } ] }, { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE" } }, { "other": { "type": "ssvc", "content": { "timestamp": "2024-03-04T21:16:28.797475Z", "id": "CVE-2021-3996", "options": [ { "Exploitation": "poc" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-15T15:26:56.079Z" } } ] } }