CVE-2021-42075

CVSS V2 Medium 5 CVSS V3 High 7.5
Description
An issue was discovered in Barrier before 2.3.4. The barriers component (aka the server-side implementation of Barrier) does not correctly close file descriptors for established TCP connections. An unauthenticated remote attacker can thus cause file descriptor exhaustion in the server process, leading to denial of service.
Overview
  • CVE ID
  • CVE-2021-42075
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-11-08T04:15:08
  • Last Modified Date
  • 2022-07-12T17:42:04
Weakness Enumerations
CWE URL
CWE-772 http://cwe.mitre.org/data/definitions/772.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:barrier_project:barrier:*:*:*:*:*:*:*:* 1 OR 2.3.4
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
http://www.openwall.com/lists/oss-security/2021/11/02/4 Exploit Mailing List Third Party Advisory
https://github.com/debauchee/barrier/releases/tag/v2.3.4 Release Notes Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-42075
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42075
History
Created Old Value New Value Data Type Notes
2022-05-10 06:47:43 Added to TrackCVE
2022-12-05 14:00:59 2021-11-08T04:15Z 2021-11-08T04:15:08 CVE Published Date updated
2022-12-05 14:00:59 2022-07-12T17:42:04 CVE Modified Date updated
2022-12-05 14:00:59 Analyzed Vulnerability Status updated