CVE-2023-6180

Resource exhaustion via memory leak in tokio-boring

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.

Categories

5.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.07%
Vendor Advisory github.com
Affected: Cloudflare tokio-boring
Published at:
Updated at:

References

Link Tags
https://github.com/cloudflare/boring/security/advisories/GHSA-pjrj-h4fg-6gm4 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-6180?
CVE-2023-6180 has been scored as a medium severity vulnerability.
How to fix CVE-2023-6180?
To fix CVE-2023-6180, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-6180 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-6180 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-6180?
CVE-2023-6180 affects Cloudflare tokio-boring.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.