PT-2021-23508 · Barrier · Barrier

Matthias Gerstner · Published 2021-11-08 · Updated 2021-11-09 · CVE-2021-42076

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Barrier versions prior to 2.3.4

Description An issue allows an attacker to cause memory exhaustion in the barriers component and barrierc by sending long TCP messages.

Recommendations For versions prior to 2.3.4, update to version 2.3.4 or later to resolve the issue.

Exploit

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2021-42076

Affected Products

Barrier

References · 5

• 🔥 http://openwall.com/lists/oss-security/2021/11/02/4 · Exploit
• https://osv.dev/vulnerability/CVE-2021-42076 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-42076 · Security Note
• https://github.com/debauchee/barrier/releases/tag/v2.3.4 · Note
• https://t.me/cibsecurity/31959 · Telegram Post