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 Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.63% 0.454
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.

https://security.gentoo.org/glsa/202401-08
http://packetstormsecurity.com/files/170176/snap-confine-must_mkdir_and_open_with_perms-Race-Condition.html
Third Party Advisory
VDB Entry
http://seclists.org/fulldisclosure/2022/Dec/4
Third Party Advisory
Mailing List
http://www.openwall.com/lists/oss-security/2022/11/30/2
Third Party Advisory
Mailing List
https://bugzilla.redhat.com/show_bug.cgi?id=2024631https://access.redhat.com/security/cve/CVE-2021-3995
Broken Link
Issue Tracking
https://github.com/util-linux/util-linux/commit/57202f5713afa2af20ffbb6ab5331481d0396f8d
Patch
Third Party Advisory
https://mirrors.edge.kernel.org/pub/linux/utils/util-linux/v2.37/v2.37.3-ReleaseNotes
Vendor Advisory
Release Notes
https://security.netapp.com/advisory/ntap-20221209-0002/
Third Party Advisory
https://www.openwall.com/lists/oss-security/2022/01/24/2
Patch
Third Party Advisory
Exploit
Mailing List