Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.23.0 until 1.35.11, 1.36.7, 1.37.3, and 1.38.1, a vulnerability has been identified in Envoy's zstd decompressor implementation (ZstdDecompressorImpl). When zstd decompression is enabled, processing a specially crafted, highly compressed zstd payload can lead to massive memory allocation. An attacker can exploit this to cause severe memory exhaustion, potentially resulting in an Out-Of-Memory (OOM) kill and Denial of Service (DoS) for the Envoy proxy. This vulnerability is fixed in 1.35.11, 1.36.7, 1.37.3, and 1.38.1.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 1.23.0, < 1.35.13CPE matchmatch criteria | cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* | ||
>= 1.36.0, < 1.36.9CPE matchmatch criteria | cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* | ||
>= 1.37.0, < 1.37.5CPE matchmatch criteria | cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* | ||
>= 1.38.0, < 1.38.3CPE matchmatch criteria | cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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