CVEvulnerability
CVE-2021-42074
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-11-08
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-416
Description
An issue was discovered in Barrier before 2.3.4. An unauthenticated attacker can cause a segmentation fault in the barriers component (aka the server-side implementation of Barrier) by quickly opening and closing TCP connections while sending a Hello message for each TCP session.
Affected configurations
• barrier project barrier (< 2.3.4)
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- 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
- 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