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SUSE-SU-2019:2559-1

Опубликовано: 04 окт. 2019
Источник: suse-cvrf

Описание

Security update for nginx

This update for nginx fixes the following issues:

Security issues fixed:

  • CVE-2019-9511: Fixed a denial of service by manipulating the window size and stream prioritization (bsc#1145579).
  • CVE-2019-9513: Fixed a denial of service caused by resource loops (bsc#1145580).
  • CVE-2019-9516: Fixed a denial of service caused by header leaks (bsc#1145582).

Список пакетов

SUSE Linux Enterprise Module for Server Applications 15
nginx-1.14.2-3.6.1

Ссылки

Описание

Some HTTP/2 implementations are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service. The attacker requests a large amount of data from a specified resource over multiple streams. They manipulate window size and stream priority to force the server to queue the data in 1-byte chunks. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.

Затронутые продукты
SUSE Linux Enterprise Module for Server Applications 15:nginx-1.14.2-3.6.1
Ссылки

Описание

Some HTTP/2 implementations are vulnerable to resource loops, potentially leading to a denial of service. The attacker creates multiple request streams and continually shuffles the priority of the streams in a way that causes substantial churn to the priority tree. This can consume excess CPU.

Затронутые продукты
SUSE Linux Enterprise Module for Server Applications 15:nginx-1.14.2-3.6.1
Ссылки

Описание

Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service. The attacker sends a stream of headers with a 0-length header name and 0-length header value, optionally Huffman encoded into 1-byte or greater headers. Some implementations allocate memory for these headers and keep the allocation alive until the session dies. This can consume excess memory.

Затронутые продукты
SUSE Linux Enterprise Module for Server Applications 15:nginx-1.14.2-3.6.1
Ссылки