What is CVE-2021-42076?

CVE-2021-42076 is a high-severity vulnerability in Barrier Project, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2021-11-08.

How severe is CVE-2021-42076?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Barrier Project

CVE-2021-42076

An issue was discovered in Barrier before 2.3.4. An attacker can cause memory exhaustion in the barriers component (aka the server-side implementation of Barrier) and barrierc by sending long TCP messages.

Vulnerability class: Buffer Overflow

EPSS: 0.015 (72.1th percentile) — read the EPSS interpretation.

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.

Affected products

Barrier_project Barrier
N/a — versions n/a

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

cve@mitre.org (mailing-list, x_refsource_MLIST, Exploit, Mailing List, Third Party Advisory)
cve@mitre.org (Third Party Advisory, x_refsource_MISC, Release Notes)

Frequently asked questions

What is CVE-2021-42076?: CVE-2021-42076 is a high-severity vulnerability in Barrier Project, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2021-11-08.
How severe is CVE-2021-42076?: High severity. CVSS v3 base score is 7.5 out of 10.