{"dataType": "CVE_RECORD", "dataVersion": "5.0", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2021-3996", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "dateUpdated": "2024-01-07T09:06:22.825845", "dateReserved": "2021-11-22T00:00:00", "datePublished": "2022-08-23T00:00:00"}, "containers": {"cna": {"providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2024-01-07T09:06:22.825845"}, "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"}]}]}}}

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