Описание
Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Multipart::Parser only wraps the request body in a BoundedIO when CONTENT_LENGTH is present. When a multipart/form-data request is sent without a Content-Length header, such as with HTTP chunked transfer encoding, multipart parsing continues until end-of-stream with no total size limit. For file parts, the uploaded body is written directly to a temporary file on disk rather than being constrained by the buffered in-memory upload limit. An unauthenticated attacker can therefore stream an arbitrarily large multipart file upload and consume unbounded disk space. This results in a denial of service condition for Rack applications that accept multipart form data. This issue has been patched in versions 2.2.23, 3.1.21, and 3.2.6.
| Релиз | Статус | Примечание |
|---|---|---|
| devel | needed | |
| esm-apps-legacy/xenial | ignored | changes too intrusive |
| esm-apps/bionic | ignored | changes too intrusive |
| esm-apps/focal | released | 2.0.7-2ubuntu0.1+esm10 |
| esm-apps/jammy | released | 2.1.4-5ubuntu1.2+esm3 |
| esm-apps/xenial | ignored | end of ESM support, was ignored [changes too intrusive] |
| esm-infra-legacy/trusty | ignored | changes too intrusive |
| jammy | needed | |
| noble | released | 2.2.7-1ubuntu0.7 |
| questing | released | 3.1.16-0.1ubuntu0.3 |
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EPSS
7.5 High
CVSS3
Связанные уязвимости
Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Multipart::Parser only wraps the request body in a BoundedIO when CONTENT_LENGTH is present. When a multipart/form-data request is sent without a Content-Length header, such as with HTTP chunked transfer encoding, multipart parsing continues until end-of-stream with no total size limit. For file parts, the uploaded body is written directly to a temporary file on disk rather than being constrained by the buffered in-memory upload limit. An unauthenticated attacker can therefore stream an arbitrarily large multipart file upload and consume unbounded disk space. This results in a denial of service condition for Rack applications that accept multipart form data. This issue has been patched in versions 2.2.23, 3.1.21, and 3.2.6.
Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Multipart::Parser only wraps the request body in a BoundedIO when CONTENT_LENGTH is present. When a multipart/form-data request is sent without a Content-Length header, such as with HTTP chunked transfer encoding, multipart parsing continues until end-of-stream with no total size limit. For file parts, the uploaded body is written directly to a temporary file on disk rather than being constrained by the buffered in-memory upload limit. An unauthenticated attacker can therefore stream an arbitrarily large multipart file upload and consume unbounded disk space. This results in a denial of service condition for Rack applications that accept multipart form data. This issue has been patched in versions 2.2.23, 3.1.21, and 3.2.6.
Rack is a modular Ruby web server interface. Prior to versions 2.2.23, ...
Rack's multipart parsing without Content-Length header allows unbounded chunked file uploads
Уязвимость парсера модульного интерфейса веб-сервера Rack языка программирования Ruby, позволяющая нарушителю вызвать отказ в обслуживании
EPSS
7.5 High
CVSS3