Vulnerability in Barrier Project
CVE-2021-42075
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.022 (81.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.openwall.com/lists/oss-security/2021/11/02/4 (mailing-list, Exploit, Mailing List, Third Party Advisory)
- github.com/debauchee/barrier/releases/tag/v2.3.4 (Third Party Advisory, Release Notes)
Frequently asked questions
- What is CVE-2021-42075?
- CVE-2021-42075 is a high-severity vulnerability in Barrier Project, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 7.5/10. Published 2021-11-08.
- How severe is CVE-2021-42075?
- High severity. CVSS v3 base score is 7.5 out of 10.