VULNERABILITY INTELLIGENCE
CVE-2023-6180
CVSS score5.3 MEDIUM
EPSS probability0.62%
CISA KEVNot currently listed
Published2023-12-05
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Description
The tokio-boring library in version 4.0.0 is affected by a memory leak issue that can lead to excessive resource consumption and potential DoS by resource exhaustion. The set_ex_data function used by the library did not deallocate memory used by pre-existing data in memory each time after completing a TLS connection causing the program to consume more resources with each new connection.
Weakness classification
- CWE-400: Uncontrolled Resource Consumption
- CWE-401: Missing Release of Memory after Effective Lifetime
- CWE-404: Improper Resource Shutdown or Release
Primary references
- cna@cloudflare.com — Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory