Published: 08/11/2021 Updated: 09/11/2021

CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10

CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9

VMScore: 445

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

An issue exists in Barrier prior to 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.

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barrier project barrier

A security issue has been found in Barrier before version 234 When quickly opening and closing socket connections while sending a Hello message for each session then this will lead to a segmentation fault (probably use after free) This allows for a simple way to DoS the barrier server for an unauthenticated remote client Further research of th ...

oss-sec mailing list archives   By Date By Thread </form>    Barrier "software KVM switch" multiple remote security issues   From: Mat ...

CWE-416 http://www.openwall.com/lists/oss-security/2021/11/02/4 https://github.com/debauchee/barrier/releases/tag/v2.3.4 https://nvd.nist.gov https://security.archlinux.org/CVE-2021-42074 http://seclists.org/oss-sec/2021/q4/87

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CVE-2021-42074

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