CVE-2023-27492
Published Apr 4, 2023
Last updated a year ago
Overview
- Description
- Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9, the Lua filter is vulnerable to denial of service. Attackers can send large request bodies for routes that have Lua filter enabled and trigger crashes. As of versions versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9, Envoy no longer invokes the Lua coroutine if the filter has been reset. As a workaround for those whose Lua filter is buffering all requests/ responses, mitigate by using the buffer filter to avoid triggering the local reply in the Lua filter.
- Source
- security-advisories@github.com
- NVD status
- Modified
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 6.5
- Impact score
- 3.6
- Exploitability score
- 2.8
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Severity
- MEDIUM
Weaknesses
- security-advisories@github.com
- CWE-770
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DAD93214-C958-4A69-9291-15D1C22CFD3F",
"versionEndExcluding": "1.22.9"
},
{
"criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "17BFB303-DA5A-4E83-93F7-3C1EA340E434",
"versionEndExcluding": "1.23.6",
"versionStartIncluding": "1.23.0"
},
{
"criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "92B633B8-FA4A-4630-9302-96F2C8336E36",
"versionEndExcluding": "1.24.4",
"versionStartIncluding": "1.24.0"
},
{
"criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "8AFC6741-6FDF-47F6-A4AF-B5F5233ABB71",
"versionEndExcluding": "1.25.3",
"versionStartIncluding": "1.25.0"
}
],
"operator": "OR"
}
]
}
]