5.5

CVE-2021-3995

Exploit

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 an unprivileged local attacker to unmount FUSE filesystems that belong to certain other users who have a UID that is a prefix of the UID of the attacker in its string form. An attacker may use this flaw to cause a denial of service to applications that use the affected filesystems.

Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Kernel ≫ Util-linux Version >= 2.34 < 2.37.3
Fedoraproject ≫ Fedora Version35
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.24% 0.474
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-552 Files or Directories Accessible to External Parties

The product makes files or directories accessible to unauthorized actors, even though they should not be.

http://seclists.org/fulldisclosure/2022/Dec/4
Third Party Advisory
Mailing List
https://www.openwall.com/lists/oss-security/2022/01/24/2
Patch
Third Party Advisory
Exploit
Mailing List