What’s Vulnerable › Vulnerabilities

CVE-2022-4066: davidmoreno onion Log response.c onion_response_flush allocation of resources

• Severity: high (CVSS 8.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-11-19 · updated 2026-06-17
• Weakness: CWE-404

Description

A vulnerability was found in davidmoreno onion. It has been rated as problematic. Affected by this issue is the function onion_response_flush of the file src/onion/response.c of the component Log Handler. The manipulation leads to allocation of resources. The name of the patch is de8ea938342b36c28024fd8393ebc27b8442a161. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-214028.

Affected products

• Mozilla Firefox: all versions
• Onion Project Onion: before 2022-09-05 — fixed in 2022-09-05

How to fix

Upgrade to a fixed version: Onion Project Onion 2022-09-05. Check the vendor advisory for mitigations.

References

• https://github.com/davidmoreno/onion/commit/de8ea938342b36c28024fd8393ebc27b8442a161
• https://github.com/davidmoreno/onion/pull/308
• https://vuldb.com/?id.214028
• https://github.com/davidmoreno/onion/commit/de8ea938342b36c28024fd8393ebc27b8442a161
• https://github.com/davidmoreno/onion/pull/308
• https://vuldb.com/?id.214028

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