CVSS: 5.3EPSS: 0%CPEs: 4EXPL: 0CVE-2024-23323 – Excessive CPU usage when URI template matcher is configured using regex in Envoy
https://notcve.org/view.php?id=CVE-2024-23323
09 Feb 2024 — Envoy is a high-performance edge/middle/service proxy. The regex expression is compiled for every request and can result in high CPU usage and increased request latency when multiple routes are configured with such matchers. This issue has been addressed in released 1.29.1, 1.28.1, 1.27.3, and 1.26.7. Users are advised to upgrade. There are no known workarounds for this vulnerability. • https://github.com/envoyproxy/envoy/commit/71eeee8f0f0132f39e402b0ee23b361ee2f4e645 • CWE-400: Uncontrolled Resource Consumption CWE-1176: Inefficient CPU Computation •
CVSS: 8.6EPSS: 0%CPEs: 4EXPL: 0CVE-2024-23324 – Envoy ext auth can be bypassed when Proxy protocol filter sets invalid UTF-8 metadata
https://notcve.org/view.php?id=CVE-2024-23324
09 Feb 2024 — Envoy is a high-performance edge/middle/service proxy. External authentication can be bypassed by downstream connections. Downstream clients can force invalid gRPC requests to be sent to ext_authz, circumventing ext_authz checks when failure_mode_allow is set to true. This issue has been addressed in released 1.29.1, 1.28.1, 1.27.3, and 1.26.7. Users are advised to upgrade. • https://github.com/envoyproxy/envoy/commit/29989f6cc8bfd8cd2ffcb7c42711eb02c7a5168a • CWE-20: Improper Input Validation •
CVSS: 7.8EPSS: 0%CPEs: 4EXPL: 0CVE-2024-23325 – Envoy crashes when using an address type that isn’t supported by the OS
https://notcve.org/view.php?id=CVE-2024-23325
09 Feb 2024 — Envoy is a high-performance edge/middle/service proxy. Envoy crashes in Proxy protocol when using an address type that isn’t supported by the OS. Envoy is susceptible to crashing on a host with IPv6 disabled and a listener config with proxy protocol enabled when it receives a request where the client presents its IPv6 address. It is valid for a client to present its IPv6 address to a target server even though the whole chain is connected via IPv4. This issue has been addressed in released 1.29.1, 1.28.1, 1.... • https://github.com/envoyproxy/envoy/commit/bacd3107455b8d387889467725eb72aa0d5b5237 • CWE-248: Uncaught Exception CWE-755: Improper Handling of Exceptional Conditions •
CVSS: 7.8EPSS: 0%CPEs: 4EXPL: 0CVE-2024-23327 – Crash in proxy protocol when command type of LOCAL in Envoy
https://notcve.org/view.php?id=CVE-2024-23327
09 Feb 2024 — Envoy is a high-performance edge/middle/service proxy. When PPv2 is enabled both on a listener and subsequent cluster, the Envoy instance will segfault when attempting to craft the upstream PPv2 header. This occurs when the downstream request has a command type of LOCAL and does not have the protocol block. This issue has been addressed in releases 1.29.1, 1.28.1, 1.27.3, and 1.26.7. Users are advised to upgrade. • https://github.com/envoyproxy/envoy/commit/63895ea8e3cca9c5d3ab4c5c128ed1369969d54a • CWE-476: NULL Pointer Dereference •
CVSS: 7.8EPSS: 94%CPEs: 444EXPL: 17CVE-2023-44487 – HTTP/2 Rapid Reset Attack Vulnerability
https://notcve.org/view.php?id=CVE-2023-44487
10 Oct 2023 — The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023. El protocolo HTTP/2 permite una denegación de servicio (consumo de recursos del servidor) porque la cancelación de solicitudes puede restablecer muchas transmisiones rápidamente, como se explotó en la naturaleza entre agosto y octubre de 2023. A flaw was found in handling multiplexed streams in the HTTP/2 protocol. ... • https://github.com/imabee101/CVE-2023-44487 • CWE-400: Uncontrolled Resource Consumption •