Описание
An issue in curl’s QUIC UDP receive function allows a malicious HTTP/3 server to trigger a remote denial of service against a curl or libcurl client. Because the helper function discards zero-length UDP datagrams before counting them toward the per-call packet budget, a connected QUIC peer can continuously stream empty datagrams to indefinitely stall the client.
Пакеты
| Пакет | Статус | Версия исправления | Релиз | Тип |
|---|---|---|---|---|
| curl | fixed | 8.21.0~rc2-1 | package | |
| curl | not-affected | trixie | package | |
| curl | not-affected | bookworm | package | |
| curl | not-affected | bullseye | package |
Примечания
https://curl.se/docs/CVE-2026-11352.html
Introduced with: https://github.com/curl/curl/commit/6a3d0b6d631d5e9bec797306b5b41a9f440a088d (curl-8_18_0)
Fixed by: https://github.com/curl/curl/commit/56eca2afb4806f1032872fa97d1834b3c1385276 (rc-8_21_0-2, curl-8_21_0)
Связанные уязвимости
An issue in curl’s QUIC UDP receive function allows a malicious HTTP/3 server to trigger a remote denial of service against a curl or libcurl client. Because the helper function discards zero-length UDP datagrams before counting them toward the per-call packet budget, a connected QUIC peer can continuously stream empty datagrams to indefinitely stall the client.
An issue in curl’s QUIC UDP receive function allows a malicious HTTP/3 server to trigger a remote denial of service against a curl or libcurl client. Because the helper function discards zero-length UDP datagrams before counting them toward the per-call packet budget, a connected QUIC peer can continuously stream empty datagrams to indefinitely stall the client.
An issue in curl’s QUIC UDP receive function allows a malicious HTTP/3 server to trigger a remote denial of service against a curl or libcurl client. Because the helper function discards zero-length UDP datagrams before counting them toward the per-call packet budget, a connected QUIC peer can continuously stream empty datagrams to indefinitely stall the client.
An issue in curl’s QUIC UDP receive function allows a malicious HTTP/3 server to trigger a remote denial of service against a curl or libcurl client. Because the helper function discards zero-length UDP datagrams before counting them toward the per-call packet budget, a connected QUIC peer can continuously stream empty datagrams to indefinitely stall the client.
Уязвимости функции приема UDP-пакетов QUIC библиотеки libcurl программного средства для взаимодействия с серверами cURL, позволяющая нарушителю вызвать отказ в обслуживании