Описание
cpp-httplib is a C++ header-only HTTP/HTTPS server and client library. Prior to version 0.20.1, the library fails to enforce configured size limits on incoming request bodies when Transfer-Encoding: chunked is used or when no Content-Length header is provided. A remote attacker can send a chunked request without the terminating zero-length chunk, causing uncontrolled memory allocation on the server. This leads to potential exhaustion of system memory and results in a server crash or unresponsiveness. Version 0.20.1 fixes the issue by enforcing limits during parsing. If the limit is exceeded at any point during reading, the connection is terminated immediately. A short-term workaround through a Reverse Proxy is available. If updating the library immediately is not feasible, deploy a reverse proxy (e.g., Nginx, HAProxy) in front of the cpp-httplib application. Configure the proxy to enforce maximum request body size limits, thereby stopping excessively large requests before they...
| Релиз | Статус | Примечание |
|---|---|---|
| devel | not-affected | 0.26.0+ds-2ubuntu3 |
| esm-apps/jammy | needed | |
| esm-apps/noble | needed | |
| esm-apps/resolute | needed | |
| esm-infra/focal | DNE | |
| focal | DNE | |
| jammy | needed | |
| noble | needed | |
| oracular | ignored | end of life, was needs-triage |
| plucky | ignored | end of life, was needs-triage |
Показывать по
EPSS
7.5 High
CVSS3
Связанные уязвимости
cpp-httplib is a C++ header-only HTTP/HTTPS server and client library. Prior to version 0.20.1, the library fails to enforce configured size limits on incoming request bodies when `Transfer-Encoding: chunked` is used or when no `Content-Length` header is provided. A remote attacker can send a chunked request without the terminating zero-length chunk, causing uncontrolled memory allocation on the server. This leads to potential exhaustion of system memory and results in a server crash or unresponsiveness. Version 0.20.1 fixes the issue by enforcing limits during parsing. If the limit is exceeded at any point during reading, the connection is terminated immediately. A short-term workaround through a Reverse Proxy is available. If updating the library immediately is not feasible, deploy a reverse proxy (e.g., Nginx, HAProxy) in front of the `cpp-httplib` application. Configure the proxy to enforce maximum request body size limits, thereby stopping excessively large requests before they re
cpp-httplib is a C++ header-only HTTP/HTTPS server and client library. ...
Уязвимость библиотеки cpp-httplib языка программирования C++, позволяющая нарушителю вызвать отказ в обслуживании
EPSS
7.5 High
CVSS3