{ "CVE_data_meta": { "ASSIGNER": "security-advisories@github.com", "ID": "CVE-2022-31019", "STATE": "PUBLIC", "TITLE": "DoS Vulnerability in URLEncodedFormDecoder in Vapor" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "vapor", "version": { "version_data": [ { "version_value": "< 4.61.1" } ] } } ] }, "vendor_name": "vapor" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "Vapor is a server-side Swift HTTP web framework. When using automatic content decoding an attacker can craft a request body that can make the server crash with the following request: `curl -d \"array[_0][0][array][_0][0][array]$(for f in $(seq 1100); do echo -n '[_0][0][array]'; done)[string][_0]=hello%20world\" http://localhost:8080/foo`. The issue is unbounded, attacker controlled stack growth which will at some point lead to a stack overflow and a process crash. This issue has been fixed in version 4.61.1." } ] }, "impact": { "cvss": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')" } ] } ] }, "references": { "reference_data": [ { "name": "https://github.com/vapor/vapor/security/advisories/GHSA-qvxg-wjxc-r4gg", "refsource": "CONFIRM", "url": "https://github.com/vapor/vapor/security/advisories/GHSA-qvxg-wjxc-r4gg" }, { "name": "https://github.com/vapor/vapor/commit/6c63226a4ab82ce53730eb1afb9ca63866fcf033", "refsource": "MISC", "url": "https://github.com/vapor/vapor/commit/6c63226a4ab82ce53730eb1afb9ca63866fcf033" } ] }, "source": { "advisory": "GHSA-qvxg-wjxc-r4gg", "discovery": "UNKNOWN" } }