Vulnerability · Published Nov 8, 2021 · Assigned by mitre

CVE-2021-42074

High 7.5

In plain English

A high-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.8% (higher than 78% of all known vulnerabilities).

Severity (CVSS NVD)7.5High

Exploit odds (30 days)1.8%top 22.0% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

An issue was discovered in Barrier before 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.

Affected products (as reported)

Vendor	Product	Versions
n/a	n/a	n/a

References

[oss-security] 20211102 Barrier "software KVM switch" multiple remote security issues mailing-list, x_refsource_MLIST
https://github.com/debauchee/barrier/releases/tag/v2.3.4 x_refsource_MISC