2023-04-24 12:24:31 +02:00
{
"id" : "CVE-2021-3996" ,
"sourceIdentifier" : "secalert@redhat.com" ,
"published" : "2022-08-23T20:15:08.560" ,
2024-10-15 18:03:19 +00:00
"lastModified" : "2024-10-15T16:35:00.963" ,
2024-01-07 11:00:28 +00:00
"vulnStatus" : "Modified" ,
2024-07-14 02:06:08 +00:00
"cveTags" : [ ] ,
2023-04-24 12:24:31 +02:00
"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."
} ,
{
"lang" : "es" ,
"value" : "Se ha encontrado un error l\u00f3gico en la biblioteca libmount de util-linux en la funci\u00f3n que permite a un usuario no privilegiado desmontar un sistema de archivos FUSE. Este fallo permite a un usuario local en un sistema vulnerable desmontar los sistemas de archivos de otros usuarios que son de escritura mundial (como /tmp) o que est\u00e1n montados en un directorio de escritura mundial. Un atacante puede usar este fallo para causar una denegaci\u00f3n de servicio a las aplicaciones que usan los sistemas de archivos afectados."
}
] ,
"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:N/I:N/A:H" ,
"attackVector" : "LOCAL" ,
"attackComplexity" : "LOW" ,
"privilegesRequired" : "LOW" ,
"userInteraction" : "NONE" ,
"scope" : "UNCHANGED" ,
"confidentialityImpact" : "NONE" ,
"integrityImpact" : "NONE" ,
"availabilityImpact" : "HIGH" ,
"baseScore" : 5.5 ,
"baseSeverity" : "MEDIUM"
} ,
"exploitabilityScore" : 1.8 ,
"impactScore" : 3.6
2024-10-15 18:03:19 +00:00
} ,
{
"source" : "134c704f-9b21-4f2e-91b3-4a467353bcc0" ,
"type" : "Secondary" ,
"cvssData" : {
"version" : "3.1" ,
"vectorString" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H" ,
"attackVector" : "LOCAL" ,
"attackComplexity" : "LOW" ,
"privilegesRequired" : "LOW" ,
"userInteraction" : "NONE" ,
"scope" : "UNCHANGED" ,
"confidentialityImpact" : "NONE" ,
"integrityImpact" : "NONE" ,
"availabilityImpact" : "HIGH" ,
"baseScore" : 5.5 ,
"baseSeverity" : "MEDIUM"
} ,
"exploitabilityScore" : 1.8 ,
"impactScore" : 3.6
2023-04-24 12:24:31 +02:00
}
]
} ,
"weaknesses" : [
{
"source" : "secalert@redhat.com" ,
"type" : "Primary" ,
"description" : [
{
"lang" : "en" ,
"value" : "CWE-552"
}
]
} ,
{
"source" : "nvd@nist.gov" ,
"type" : "Secondary" ,
"description" : [
{
"lang" : "en" ,
"value" : "CWE-552"
}
]
}
] ,
"configurations" : [
{
"nodes" : [
{
"operator" : "OR" ,
"negate" : false ,
"cpeMatch" : [
{
"vulnerable" : true ,
"criteria" : "cpe:2.3:a:kernel:util-linux:*:*:*:*:*:*:*:*" ,
"versionStartIncluding" : "2.34" ,
"versionEndExcluding" : "2.37.3" ,
"matchCriteriaId" : "755D0AAC-24D9-4B39-BCC2-06AC9FF889E2"
}
]
}
]
} ,
{
"nodes" : [
{
"operator" : "OR" ,
"negate" : false ,
"cpeMatch" : [
{
"vulnerable" : true ,
"criteria" : "cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*" ,
"matchCriteriaId" : "80E516C0-98A4-4ADE-B69F-66A772E2BAAA"
}
]
}
]
}
] ,
"references" : [
{
"url" : "http://packetstormsecurity.com/files/170176/snap-confine-must_mkdir_and_open_with_perms-Race-Condition.html" ,
"source" : "secalert@redhat.com" ,
"tags" : [
"Third Party Advisory"
]
} ,
{
"url" : "http://seclists.org/fulldisclosure/2022/Dec/4" ,
"source" : "secalert@redhat.com" ,
"tags" : [
"Mailing List" ,
"Third Party Advisory"
]
} ,
{
"url" : "http://www.openwall.com/lists/oss-security/2022/11/30/2" ,
"source" : "secalert@redhat.com" ,
"tags" : [
"Mailing List" ,
"Third Party Advisory"
]
} ,
{
"url" : "https://access.redhat.com/security/cve/CVE-2021-3996" ,
"source" : "secalert@redhat.com" ,
"tags" : [
"Issue Tracking" ,
"Third Party Advisory"
]
} ,
{
"url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2024628" ,
"source" : "secalert@redhat.com" ,
"tags" : [
"Issue Tracking" ,
"Patch" ,
"Third Party Advisory"
]
} ,
{
"url" : "https://github.com/util-linux/util-linux/commit/166e87368ae88bf31112a30e078cceae637f4cdb" ,
"source" : "secalert@redhat.com" ,
"tags" : [
"Patch" ,
"Third Party Advisory"
]
} ,
{
"url" : "https://mirrors.edge.kernel.org/pub/linux/utils/util-linux/v2.37/v2.37.3-ReleaseNotes" ,
"source" : "secalert@redhat.com" ,
"tags" : [
"Release Notes" ,
"Vendor Advisory"
]
} ,
2024-01-07 11:00:28 +00:00
{
"url" : "https://security.gentoo.org/glsa/202401-08" ,
"source" : "secalert@redhat.com"
} ,
2023-04-24 12:24:31 +02:00
{
"url" : "https://security.netapp.com/advisory/ntap-20221209-0002/" ,
"source" : "secalert@redhat.com" ,
"tags" : [
"Broken Link" ,
"Third Party Advisory"
]
} ,
{
"url" : "https://www.openwall.com/lists/oss-security/2022/01/24/2" ,
"source" : "secalert@redhat.com" ,
"tags" : [
"Exploit" ,
"Mailing List" ,
"Patch" ,
"Third Party Advisory"
]
}
]
}