Vulnerabilities (CVE)

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Filtered by vendor Envoyproxy Subscribe
Filtered by product Envoy
Total 45 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2020-12603 1 Envoyproxy 1 Envoy 2020-07-09 5.0 MEDIUM 7.5 HIGH
Envoy version 1.14.2, 1.13.2, 1.12.4 or earlier may consume excessive amounts of memory when proxying HTTP/2 requests or responses with many small (i.e. 1 byte) data frames.
CVE-2020-8663 1 Envoyproxy 1 Envoy 2020-07-08 5.0 MEDIUM 7.5 HIGH
Envoy version 1.14.2, 1.13.2, 1.12.4 or earlier may exhaust file descriptors and/or memory when accepting too many connections.
CVE-2019-18838 1 Envoyproxy 1 Envoy 2019-12-18 5.0 MEDIUM 7.5 HIGH
An issue was discovered in Envoy 1.12.0. Upon receipt of a malformed HTTP request without a Host header, it sends an internally generated "Invalid request" response. This internally generated response is dispatched through the configured encoder filter chain before being sent to the client. An encoder filter that invokes route manager APIs that access a request's Host header causes a NULL pointer dereference, resulting in abnormal termination of the Envoy process.
CVE-2019-18836 2 Envoyproxy, Istio 2 Envoy, Istio 2019-11-12 5.0 MEDIUM 7.5 HIGH
Envoy 1.12.0 allows a remote denial of service because of resource loops, as demonstrated by a single idle TCP connection being able to keep a worker thread in an infinite busy loop when continue_on_listener_filters_timeout is used."
CVE-2019-15226 1 Envoyproxy 1 Envoy 2019-10-17 7.8 HIGH 7.5 HIGH
Upon receiving each incoming request header data, Envoy will iterate over existing request headers to verify that the total size of the headers stays below a maximum limit. The implementation in versions 1.10.0 through 1.11.1 for HTTP/1.x traffic and all versions of Envoy for HTTP/2 traffic had O(n^2) performance characteristics. A remote attacker may craft a request that stays below the maximum request header size but consists of many thousands of small headers to consume CPU and result in a denial-of-service attack.