CVE-2023-27492

描述

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.

如何修補 CVE-2023-27492

要修補 CVE-2023-27492,請將受影響套件升級到下列已修補版本。

• —升級至 1.22.9 或更新版本

CVE-2023-27492 正在被利用嗎?

低 — EPSS 為 0.7%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• from 0, < 1.22.9, >= 1.23.0, < 1.23.6, >= 1.24.0, < 1.24.4, >= 1.25.0, < 1.25.3

CVSS 分數

參考連結(2)

• WEBgithub.com/envoyproxy/envoy/security/advisories/GHSA-wpc2-2jp6-ppg2
• WEBnvd.nist.gov/vuln/detail/CVE-2023-27492