Use After Free

Envoy is vulnerable to a Use-After-Free vulnerability. The vulnerability is due to improper handling in HttpConnectionManager HCM with EnvoyQuicServerStream, where an attacker can crash Envoy by sending a request without FIN, followed by a RESETSTREAM frame, and then closing the connection after...

Integer Underflow

Envoy is vulnerable to Integer Underflow. The vulnerability is due to an integer underflow in the QuicStreamSequencerBuffer::PeekRegion implementation, causing a crash at QuicheDataReader::PeekVarInt62Length...

BIT-ENVOY-2024-23326 Envoy incorrectly accepts HTTP 200 response for entering upgrade mode

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/rfc7230section-6.7 a server sends 101 when switching...

BIT-ENVOY-2024-32975 Envoy crashes in QuicheDataReader::PeekVarInt62Length()

Envoy is a cloud-native, open source edge and service proxy. There is a crash at QuicheDataReader::PeekVarInt62Length. It is caused by integer underflow in the QuicStreamSequencerBuffer::PeekRegion implementation...

BIT-ENVOY-2024-32976 Envoy can enter an endless loop while decompressing Brotli data with extra input

Envoy is a cloud-native, open source edge and service proxy. Envoyproxy with a Brotli filter can get into an endless loop during decompression of Brotli data with extra input...

BIT-ENVOY-2024-34362 Envoy affected by a crash (use-after-free) in EnvoyQuicServerStream

Envoy is a cloud-native, open source edge and service proxy. There is a use-after-free in HttpConnectionManager HCM with EnvoyQuicServerStream that can crash Envoy. An attacker can exploit this vulnerability by sending a request without FIN, then a RESETSTREAM frame, and then after receiving the...

BIT-ENVOY-2024-34363 Envoy can crash due to uncaught nlohmann JSON exception

Envoy is a cloud-native, open source edge and service proxy. Due to how Envoy invoked the nlohmann JSON library, the library could throw an uncaught exception from downstream data if incomplete UTF-8 strings were serialized. The uncaught exception would cause Envoy to crash...

BIT-ENVOY-2024-34364 Envoy OOM vector from HTTP async client with unbounded response buffer for mirror response

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...

CVE-2024-34362

Envoy is a cloud-native, open source edge and service proxy. There is a use-after-free in HttpConnectionManager HCM with EnvoyQuicServerStream that can crash Envoy. An attacker can exploit this vulnerability by sending a request without FIN, then a RESETSTREAM frame, and then after receiving the...

CVE-2024-34363

Envoy is a cloud-native, open source edge and service proxy. Due to how Envoy invoked the nlohmann JSON library, the library could throw an uncaught exception from downstream data if incomplete UTF-8 strings were serialized. The uncaught exception would cause Envoy to crash...

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...

CVE-2024-32974

Envoy is a cloud-native, open source edge and service proxy. A crash was observed in EnvoyQuicServerStream::OnInitialHeadersComplete with following call stack. It is a use-after-free caused by QUICHE continuing push request headers after StopReading being called on the stream. As after StopReadin...

CVE-2024-32975

Envoy is a cloud-native, open source edge and service proxy. There is a crash at QuicheDataReader::PeekVarInt62Length. It is caused by integer underflow in the QuicStreamSequencerBuffer::PeekRegion implementation...

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/rfc7230section-6.7 a server sends 101 when switching...

CVE-2024-32974 Envoy affected by a crash in EnvoyQuicServerStream::OnInitialHeadersComplete()

Envoy is a cloud-native, open source edge and service proxy. A crash was observed in EnvoyQuicServerStream::OnInitialHeadersComplete with following call stack. It is a use-after-free caused by QUICHE continuing push request headers after StopReading being called on the stream. As after StopReadin...

CVE-2024-32974 Envoy affected by a crash in EnvoyQuicServerStream::OnInitialHeadersComplete()

Envoy is a cloud-native, open source edge and service proxy. A crash was observed in EnvoyQuicServerStream::OnInitialHeadersComplete with following call stack. It is a use-after-free caused by QUICHE continuing push request headers after StopReading being called on the stream. As after StopReadin...

CVE-2024-32974 Envoy affected by a crash in EnvoyQuicServerStream::OnInitialHeadersComplete()

Envoy is a cloud-native, open source edge and service proxy. A crash was observed in EnvoyQuicServerStream::OnInitialHeadersComplete with following call stack. It is a use-after-free caused by QUICHE continuing push request headers after StopReading being called on the stream. As after StopReadin...

CVE-2024-32975 Envoy crashes in QuicheDataReader::PeekVarInt62Length()

Envoy is a cloud-native, open source edge and service proxy. There is a crash at QuicheDataReader::PeekVarInt62Length. It is caused by integer underflow in the QuicStreamSequencerBuffer::PeekRegion implementation...

CVE-2024-32975 Envoy crashes in QuicheDataReader::PeekVarInt62Length()

Envoy is a cloud-native, open source edge and service proxy. There is a crash at QuicheDataReader::PeekVarInt62Length. It is caused by integer underflow in the QuicStreamSequencerBuffer::PeekRegion implementation...

CVE-2024-32975 Envoy crashes in QuicheDataReader::PeekVarInt62Length()

Envoy is a cloud-native, open source edge and service proxy. There is a crash at QuicheDataReader::PeekVarInt62Length. It is caused by integer underflow in the QuicStreamSequencerBuffer::PeekRegion implementation...