Vulnerability Details : CVE-2021-42072
An issue was discovered in Barrier before 2.4.0. The barriers component (aka the server-side implementation of Barrier) does not sufficiently verify the identify of connecting clients. Clients can thus exploit weaknesses in the provided protocol to cause denial-of-service or stage further attacks that could lead to information leaks or integrity corruption.
Vulnerability category: BypassGain privilegeDenial of service
Products affected by CVE-2021-42072
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
- cpe:2.3:a:barrier_project:barrier:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-42072
0.25%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 66 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-42072
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:P |
8.0
|
6.4
|
NIST | |
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2021-42072
-
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-42072
-
https://github.com/debauchee/barrier/releases/tag/v2.4.0
Release v2.4.0 · debauchee/barrier · GitHubRelease Notes;Third Party Advisory
-
http://www.openwall.com/lists/oss-security/2021/11/02/4
oss-security - Barrier "software KVM switch" multiple remote security issuesExploit;Mailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XMU3STOKHPEZSC54MZ42YBFFC2R3BU2Q/
[SECURITY] Fedora 34 Update: barrier-2.4.0-1.fc34 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CIEVNCFEFO7L3NTM4VUZB3WKYYCBTFCI/
[SECURITY] Fedora 35 Update: barrier-2.4.0-1.fc35 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
Jump to