5.3

CVE-2023-6180: cloudflare boring Uncontrolled Resource Consumption

CVSS: 5.3v3.1MediumModified
AliasesGHSA-pjrj-h4fg-6gm4
Published 05-12-2023Last modified 02-08-2024
Open JSON

Vulnerability summary

CVE-2023-6180 is a medium (CVSS 5.3) Uncontrolled Resource Consumption vulnerability in cloudflare boring. EPSS estimates a 0.62% chance of exploitation in the next 30 days, higher than 48.7% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.62%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 05-12-2023
    PublishedVulnerability first disclosed.
  2. 02-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.62%

Chance of exploitation in the next 30 days

Percentile

49%

Versus all other CVEs

30-day change

0.00 pp

From 0.62% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.62%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Cloudflare2 products
Crates.Io1 product
  • tokio-boring≥ 4.0.0, < 4.1.0

2 vendors · 3 products

References

4 links