Published: 08/11/2021 Updated: 12/07/2022

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. 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.

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barrier project barrier

A security issue has been found in Barrier before version 234 The daemon does not correctly close client sockets causing permanent file descriptor exhaustion and thus remote denial of service within a couple of seconds by just opening and closing connections After 1023 file descriptors are open the server will still react to connection request ...

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

CWE-772 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-2021-42075 http://seclists.org/oss-sec/2021/q4/87

CVE-2021-42075

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