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.
References
Configurations
History
21 Nov 2024, 06:23
| Type | Values Removed | Values Added |
|---|---|---|
| References | () http://packetstormsecurity.com/files/170176/snap-confine-must_mkdir_and_open_with_perms-Race-Condition.html - Third Party Advisory, VDB Entry | |
| References | () http://seclists.org/fulldisclosure/2022/Dec/4 - Mailing List, Third Party Advisory | |
| References | () http://www.openwall.com/lists/oss-security/2022/11/30/2 - Mailing List, Third Party Advisory | |
| References | () https://bugzilla.redhat.com/show_bug.cgi?id=2024631https://access.redhat.com/security/cve/CVE-2021-3995 - Broken Link, Issue Tracking | |
| References | () https://github.com/util-linux/util-linux/commit/57202f5713afa2af20ffbb6ab5331481d0396f8d - Patch, Third Party Advisory | |
| References | () https://mirrors.edge.kernel.org/pub/linux/utils/util-linux/v2.37/v2.37.3-ReleaseNotes - Release Notes, Vendor Advisory | |
| References | () https://security.gentoo.org/glsa/202401-08 - | |
| References | () https://security.netapp.com/advisory/ntap-20221209-0002/ - Third Party Advisory | |
| References | () https://www.openwall.com/lists/oss-security/2022/01/24/2 - Exploit, Mailing List, Patch, Third Party Advisory |
01 Dec 2022, 01:15
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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24 Oct 2022, 13:59
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CPE | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* cpe:2.3:a:kernel:util-linux:*:*:*:*:*:*:*:* |
|
| CWE | CWE-552 | |
| References | (MISC) https://mirrors.edge.kernel.org/pub/linux/utils/util-linux/v2.37/v2.37.3-ReleaseNotes - Release Notes, Vendor Advisory | |
| References | (MISC) https://www.openwall.com/lists/oss-security/2022/01/24/2 - Exploit, Mailing List, Patch, Third Party Advisory | |
| References | (MISC) https://github.com/util-linux/util-linux/commit/57202f5713afa2af20ffbb6ab5331481d0396f8d - Patch, Third Party Advisory | |
| References | (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=2024631https://access.redhat.com/security/cve/CVE-2021-3995 - Broken Link, Issue Tracking |
23 Aug 2022, 20:15
| Type | Values Removed | Values Added |
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| New CVE |
Information
Published : 2022-08-23 20:15
Updated : 2024-11-21 06:23
NVD link : CVE-2021-3995
Mitre link : CVE-2021-3995
CVE.ORG link : CVE-2021-3995
JSON object : View
Products Affected
fedoraproject
- fedora
kernel
- util-linux
CWE
CWE-552
Files or Directories Accessible to External Parties