CVE-2024-27919

描述

Envoy is a cloud-native, open-source edge and service proxy. In versions 1.29.0 and 1.29.1, theEnvoy HTTP/2 protocol stack is vulnerable to the flood of CONTINUATION frames. Envoy's HTTP/2 codec does not reset a request when header map limits have been exceeded. This allows an attacker to send an sequence of CONTINUATION frames without the END_HEADERS bit set causing unlimited memory consumption. This can lead to denial of service through memory exhaustion. Users should upgrade to versions 1.29.2 to mitigate the effects of the CONTINUATION flood. Note that this vulnerability is a regression in Envoy version 1.29.0 and 1.29.1 only. As a workaround, downgrade to version 1.28.1 or earlier or disable HTTP/2 protocol for downstream connections.

如何修補 CVE-2024-27919

要修補 CVE-2024-27919,請將受影響套件升級到下列已修補版本。

• —升級至 1.29.2 或更新版本

CVE-2024-27919 正在被利用嗎?

可能 — EPSS 為 86.7%,屬於高被利用機率區間,建議優先修補。

受影響套件(1)

• >= 1.29.0, < 1.29.2

CVSS 分數

參考連結(6)

• WEBwww.openwall.com/lists/oss-security/2024/04/03/16
• WEBwww.openwall.com/lists/oss-security/2024/04/05/3
• WEBgithub.com/envoyproxy/envoy/commit/57a02565532c18eb9df972a3e8974be3ae59f2d5
• WEBgithub.com/envoyproxy/envoy/security/advisories/GHSA-gghf-vfxp-799r