New HTTP/2 Vulnerability Exposes Web Servers to DoS Attacks

New research has found that the CONTINUATION frame in the HTTP/2 protocol can be exploited to conduct denial-of-service DoS attacks. The technique has been codenamed HTTP/2 CONTINUATION Flood by security researcher Bartek Nowotarski, who reported the issue to the CERT Coordination Center CERT/CC ...

Envoy 安全漏洞

Envoy is an open source distributed proxy server. A security vulnerability exists in Envoy versions 1.29.0 and 1.29.1, which stems from the Envoy HTTP/2 stack being prone to running out of memory due to a flood of CONTINUATION frames...

Google Go 安全漏洞

Google Go is a static strongly typed, compiled, concatenated, and garbage-collected programming language from Google USA. A security vulnerability exists in Google Go. An attacker exploits the vulnerability to cause an HTTP/2 endpoint to read an arbitrary amount of header data by sending an...

Nghttp2 安全漏洞

Nghttp2 is a C library for HTTP/2 implementation from the Nghttp2 community. A security vulnerability exists in Nghttp2 versions prior to 1.61.0, which stems from reading an unlimited number of HTTP/2 CONTINUATION frames may result in excessive CPU utilization...

forgejo -- HTTP/2 CONTINUATION flood in net/http

[email protected] reports: An attacker may cause an HTTP/2 endpoint to read arbitrary amounts of header data by sending an excessive number of CONTINUATION frames. Maintaining HPACK state requires parsing and processing all HEADERS and CONTINUATION frames on a connection. When a request's heade...

Allocation of Resources Without Limits or Throttling

Overview std/net/http is a Go standard library package std/net/http Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling. Go Vulnerability Report: An attacker may cause an HTTP/2 endpoint to read arbitrary amounts of header data by sending an...

GO-2024-2687 HTTP/2 CONTINUATION flood in net/http

An attacker may cause an HTTP/2 endpoint to read arbitrary amounts of header data by sending an excessive number of CONTINUATION frames. Maintaining HPACK state requires parsing and processing all HEADERS and CONTINUATION frames on a connection. When a request's headers exceed MaxHeaderBytes, no...

GHSA-W8GF-G2VQ-J2F4 amphp/http-client Denial of Service via HTTP/2 CONTINUATION Frames

Early versions of amphp/http-client with HTTP/2 support v4.0.0-rc10 to 4.0.0 will collect HTTP/2 CONTINUATION frames in an unbounded buffer and will not check the header size limit until it has received the ENDHEADERS flag, resulting in an OOM crash. Later versions of amphp/http-client v4.1.0-rc1...

amphp/http-client Denial of Service via HTTP/2 CONTINUATION Frames

Early versions of amphp/http-client with HTTP/2 support v4.0.0-rc10 to 4.0.0 will collect HTTP/2 CONTINUATION frames in an unbounded buffer and will not check the header size limit until it has received the ENDHEADERS flag, resulting in an OOM crash. Later versions of amphp/http-client v4.1.0-rc1...

CVE-2024-2653

amphp/http will collect CONTINUATION frames in an unbounded buffer and will not check a limit until it has received the set ENDHEADERS flag, resulting in an OOM crash...

CVE-2024-2758

Tempesta FW rate limits are not enabled by default. They are either set too large to capture empty CONTINUATION frames attacks or too small to handle normal HTTP requests appropriately...

CVE-2024-2758

Tempesta FW rate limits are not enabled by default. They are either set too large to capture empty CONTINUATION frames attacks or too small to handle normal HTTP requests appropriately...

GHSA-QJFW-CVJF-F4FM AMPHP Denial of Service via HTTP/2 CONTINUATION Frames

amphp/http will collect HTTP/2 CONTINUATION frames in an unbounded buffer and will not check the header size limit until it has received the ENDHEADERS flag, resulting in an OOM crash. amphp/http-client and amphp/http-server are indirectly affected if they're used with an unpatched version of...

AMPHP Denial of Service via HTTP/2 CONTINUATION Frames

amphp/http will collect HTTP/2 CONTINUATION frames in an unbounded buffer and will not check the header size limit until it has received the ENDHEADERS flag, resulting in an OOM crash. amphp/http-client and amphp/http-server are indirectly affected if they're used with an unpatched version of...

CVE-2024-2653

CVE-2024-2653 affects the AMPHP HTTP stack: amphp/http will accumulate HTTP/2 CONTINUATION frames in an unbounded buffer and only enforces a limit when END_HEADERS is seen, causing an out-of-memory crash. The issue also indirectly impacts amphp/http-client and amphp/http-server if used with an un...

CVE-2024-2758 CVE-2024-2758

Tempesta FW rate limits are not enabled by default. They are either set too large to capture empty CONTINUATION frames attacks or too small to handle normal HTTP requests appropriately...

CVE-2024-2758

CVE-2024-2758 concerns Tempesta FW. The vulnerability stems from how HTTP/2 CONTINUATION frames are handled when rate limits are not enabled by default, enabling potential denial-of-service via excessive CONTINUATION traffic (OOM/CPU exhaustion depending on implementation). The initial descriptio...

RUSTSEC-2024-0332 Degradation of service in h2 servers with CONTINUATION Flood

An attacker can send a flood of CONTINUATION frames, causing h2 to process them indefinitely. This results in an increase in CPU usage. Tokio task budget helps prevent this from a complete denial-of-service, as the server can still respond to legitimate requests, albeit with increased latency. Mo...

Degradation of service in h2 servers with CONTINUATION Flood

An attacker can send a flood of CONTINUATION frames, causing h2 to process them indefinitely. This results in an increase in CPU usage. Tokio task budget helps prevent this from a complete denial-of-service, as the server can still respond to legitimate requests, albeit with increased latency. Mo...

Apache Traffic Server 输入验证错误漏洞

Apache Traffic Server ATS is the United States Apache Apache Foundation's set of scalable HTTP proxy and caching server. Apache Traffic Server suffers from an input validation error vulnerability that stems from continuation frame flooding in the HTTP/2 stack, which can be exploited by an attacke...