CVSS: 6.5EPSS: 0%CPEs: 4EXPL: 1CVE-2024-34364 – Envoy OOM vector from HTTP async client with unbounded response buffer for mirror response
https://notcve.org/view.php?id=CVE-2024-34364
Envoy is a cloud-native, open source edge and service proxy. Envoy exposed an out-of-memory (OOM) vector from the mirror response, since async HTTP client will buffer the response with an unbounded buffer. Envoy es un proxy de servicio y borde de código abierto, nativo de la nube. Envoy expuso un vector de falta de memoria (OOM) de la respuesta reflejada, ya que el cliente HTTP asíncrono almacenará la respuesta en un búfer ilimitado. • https://github.com/envoyproxy/envoy/security/advisories/GHSA-xcj3-h7vf-fw26 • CWE-400: Uncontrolled Resource Consumption CWE-787: Out-of-bounds Write •
CVSS: 8.2EPSS: 0%CPEs: 4EXPL: 0CVE-2024-23326 – Envoy incorrectly accepts HTTP 200 response for entering upgrade mode
https://notcve.org/view.php?id=CVE-2024-23326
Envoy is a cloud-native, open source edge and service proxy. A theoretical request smuggling vulnerability exists through Envoy if a server can be tricked into adding an upgrade header into a response. Per RFC https://www.rfc-editor.org/rfc/rfc7230#section-6.7 a server sends 101 when switching protocols. Envoy incorrectly accepts a 200 response from a server when requesting a protocol upgrade, but 200 does not indicate protocol switch. This opens up the possibility of request smuggling through Envoy if the server can be tricked into adding the upgrade header to the response. • https://github.com/envoyproxy/envoy/security/advisories/GHSA-vcf8-7238-v74c https://access.redhat.com/security/cve/CVE-2024-23326 https://bugzilla.redhat.com/show_bug.cgi?id=2259228 • CWE-391: Unchecked Error Condition CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') •
CVSS: 7.5EPSS: 0%CPEs: 4EXPL: 0CVE-2024-32475 – Envoy RELEASE_ASSERT using auto_sni with :authority header > 255 bytes
https://notcve.org/view.php?id=CVE-2024-32475
Envoy is a cloud-native, open source edge and service proxy. When an upstream TLS cluster is used with `auto_sni` enabled, a request containing a `host`/`:authority` header longer than 255 characters triggers an abnormal termination of Envoy process. Envoy does not gracefully handle an error when setting SNI for outbound TLS connection. The error can occur when Envoy attempts to use the `host`/`:authority` header value longer than 255 characters as SNI for outbound TLS connection. SNI length is limited to 255 characters per the standard. • https://github.com/envoyproxy/envoy/commit/b47fc6648d7c2dfe0093a601d44cb704b7bad382 https://github.com/envoyproxy/envoy/security/advisories/GHSA-3mh5-6q8v-25wj https://access.redhat.com/security/cve/CVE-2024-32475 https://bugzilla.redhat.com/show_bug.cgi?id=2276149 • CWE-253: Incorrect Check of Function Return Value CWE-617: Reachable Assertion •
CVSS: 5.3EPSS: 0%CPEs: 4EXPL: 2CVE-2024-30255 – HTTP/2: CPU exhaustion due to CONTINUATION frame flood
https://notcve.org/view.php?id=CVE-2024-30255
Envoy is a cloud-native, open source edge and service proxy. The HTTP/2 protocol stack in Envoy versions prior to 1.29.3, 1.28.2, 1.27.4, and 1.26.8 are vulnerable to CPU exhaustion due to flood of CONTINUATION frames. Envoy's HTTP/2 codec allows the client to send an unlimited number of CONTINUATION frames even after exceeding Envoy's header map limits. This allows an attacker to send a sequence of CONTINUATION frames without the END_HEADERS bit set causing CPU utilization, consuming approximately 1 core per 300Mbit/s of traffic and culminating in denial of service through CPU exhaustion. Users should upgrade to version 1.29.3, 1.28.2, 1.27.4, or 1.26.8 to mitigate the effects of the CONTINUATION flood. • https://github.com/lockness-Ko/CVE-2024-27316 https://github.com/blackmagic2023/Envoy-CPU-Exhaustion-Vulnerability-PoC http://www.openwall.com/lists/oss-security/2024/04/03/16 http://www.openwall.com/lists/oss-security/2024/04/05/3 https://github.com/envoyproxy/envoy/security/advisories/GHSA-j654-3ccm-vfmm https://access.redhat.com/security/cve/CVE-2024-30255 https://bugzilla.redhat.com/show_bug.cgi?id=2272986 • CWE-390: Detection of Error Condition Without Action •
CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 1CVE-2024-27919 – HTTP/2: memory exhaustion due to CONTINUATION frame flood
https://notcve.org/view.php?id=CVE-2024-27919
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. • https://github.com/lockness-Ko/CVE-2024-27316 http://www.openwall.com/lists/oss-security/2024/04/03/16 http://www.openwall.com/lists/oss-security/2024/04/05/3 https://github.com/envoyproxy/envoy/commit/57a02565532c18eb9df972a3e8974be3ae59f2d5 https://github.com/envoyproxy/envoy/security/advisories/GHSA-gghf-vfxp-799r • CWE-390: Detection of Error Condition Without Action •