5.5
CVE-2021-3996
- EPSS 0.63%
- Veröffentlicht 23.08.2022 20:15:08
- Zuletzt bearbeitet 21.11.2024 06:23:20
- Quelle secalert@redhat.com
- CVE-Watchlists
- Unerledigt
LoginA 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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Kernel ≫ Util-linux Version >= 2.34 < 2.37.3
Fedoraproject ≫ Fedora Version35
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.63% | 0.456 |
| 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
|
| 134c704f-9b21-4f2e-91b3-4a467353bcc0 | 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
http://seclists.org/fulldisclosure/2022/Dec/4
http://www.openwall.com/lists/oss-security/2022/11/30/2
https://mirrors.edge.kernel.org/pub/linux/utils/util-linux/v2.37/v2.37.3-ReleaseNotes
https://security.netapp.com/advisory/ntap-20221209-0002/
https://www.openwall.com/lists/oss-security/2022/01/24/2
https://access.redhat.com/security/cve/CVE-2021-3996
https://bugzilla.redhat.com/show_bug.cgi?id=2024628
https://github.com/util-linux/util-linux/commit/166e87368ae88bf31112a30e078cceae637f4cdb