據發現，nginx 未正確處理 HTTP/2 實作。遠端攻擊者可能會利用此問題，造成記憶體過度消耗，進而導致拒絕服務。
此問題僅影響了 Ubuntu 16.04 LTS、Ubuntu 18.04 LTS 和 Ubuntu 18.10。(CVE-2018-16843)

Gal Goldshtein 發現 nginx 未正確處理 HTTP/2 實作。遠端攻擊者可能會利用此問題，造成 CPU 過度使用，進而導致拒絕服務。此問題僅影響 Ubuntu 16.04 LTS、Ubuntu 18.04 LTS 和 Ubuntu 18.10。
(CVE-2018-16844)

據發現，nginx 未正確處理 ngx_http_mp4_module 模組。遠端攻擊者可能會利用此問題，使用特別建構的 mp4 檔案造成 nginx 損毀、停止回應，或存取任意記憶體。(CVE-2018-16845)

請注意，Tenable Network Security 已直接從 Ubuntu 安全性公告擷取前述描述區塊。Tenable 已盡量在不造成其他問題的前提下，嘗試自動清理並將其格式化。

在 Nginx (一種高效網頁和反向 proxy 伺服器) 中發現了三個弱點，可在處理 HTTP/2 (透過過多的記憶體/CPU 使用) 時，導致拒絕服務，或在 ngx_http_mp4_module 模組 (用於伺服器端 MP4 串流) 中導致伺服器記憶體洩漏。

根據其自我報告的版本，已安裝的 Nginx Plus 版本是 R1 (基於 Open Source 1.5.3-1 版本建構) 至 R15-P2 或 R16 (基於 Open Source 1.15.2 版本建構) 至 R16-P1。因此，該應用程式受到以下問題影響：

  - 存在與「ngx_http_v2_module」模組有關的不明錯誤，可導致記憶體過度使用。
    (CVE-2018-16843)

  - 存在與「ngx_http_v2_module」模組有關的不明錯誤，可導致 CPU 過度使用。
    (CVE-2018-16844)

  - 存在與「ngx_http_mp4_module」模組有關的不明錯誤，可導致工作者處理序損毀或記憶體洩漏。(CVE-2018-16845)

遠端 Redhat Enterprise Linux 7 主機上安裝的套件受到 RHSA-2018:3681 公告中提及的多個弱點影響。

  - nginx：透過 HTTP/2 實作中的瑕疵造成過度記憶體消耗 (CVE-2018-16843)

  - nginx：透過 HTTP/2 實作中的瑕疵造成過度 CPU 使用率 (CVE-2018-16844)

  - nginx：透過 mp4 模組發生的拒絕服務和記憶體洩漏 (CVE-2018-16845)

請注意，Nessus 並未測試這些問題，而是僅根據應用程式自我報告的版本號碼作出判斷。

It was discovered that there was a denial of service (DoS) vulnerability in the nginx web/proxy server.

As there was no validation for the size of a 64-bit atom in an MP4 file, this could have led to a CPU hog when the size was 0, or various other problems due to integer underflow when the calculating atom data size, including segmentation faults or even worker-process memory disclosure.

For Debian 8 'Jessie', this issue has been fixed in nginx version 1.6.2-5+deb8u6.

We recommend that you upgrade your nginx packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

An update of the nginx package has been released.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2018:3680 advisory.

  - nginx: Excessive memory consumption via flaw in HTTP/2 implementation (CVE-2018-16843)

  - nginx: Excessive CPU usage via flaw in HTTP/2 implementation (CVE-2018-16844)

  - nginx: Denial of service and memory disclosure via mp4 module (CVE-2018-16845)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

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).

  - CVE-2018-16845: Fixed denial of service and memory     disclosure via mp4 module (bsc#1115015).

  - CVE-2018-16843: Fixed excessive memory consumption in     HTTP/2 implementation (bsc#1115022).

  - CVE-2018-16844: Fixed excessive CPU usage via flaw in     HTTP/2 implementation (bsc#1115025).

This update was imported from the SUSE:SLE-15-SP1:Update update project.

According to its Server response header, the installed version of nginx is 1.x prior to 1.14.1 or 1.15.x prior to 1.15.6. It is,  therefore, affected by the following issues :

  - An unspecified error exists related to the module     'ngx_http_v2_module' that allows excessive memory usage.
    (CVE-2018-16843)

  - An unspecified error exists related to the module     'ngx_http_v2_module' that allows excessive CPU usage.
    (CVE-2018-16844)

  - An unspecified error exists related to the module     'ngx_http_mp4_module' that allows worker process     crashes or memory disclosure. (CVE-2018-16845)

This update for nginx fixes the following issues :

nginx was updated to 1.14.2 :

  - Bugfix: nginx could not be built on Fedora 28 Linux.

  - Bugfix: in handling of client addresses when using unix     domain listen sockets to work with datagrams on Linux.

  - Change: the logging level of the 'http request', 'https     proxy request', 'unsupported protocol', 'version too     low', 'no suitable key share', and 'no suitable     signature algorithm' SSL errors has been lowered from     'crit' to 'info'.

  - Bugfix: when using OpenSSL 1.1.0 or newer it was not     possible to switch off 'ssl_prefer_server_ciphers' in a     virtual server if it was switched on in the default     server.

  - Bugfix: nginx could not be built with LibreSSL 2.8.0.

  - Bugfix: if nginx was built with OpenSSL 1.1.0 and used     with OpenSSL 1.1.1, the TLS 1.3 protocol was always     enabled.

  - Bugfix: sending a disk-buffered request body to a gRPC     backend might fail.

  - Bugfix: connections with some gRPC backends might not be     cached when using the 'keepalive' directive.

  - Bugfix: a segmentation fault might occur in a worker     process if the ngx_http_mp4_module was used on 32-bit     platforms.

Changes with nginx 1.14.1 :

  - Security: when using HTTP/2 a client might cause     excessive memory consumption (CVE-2018-16843) and CPU     usage (CVE-2018-16844).

  - Security: processing of a specially crafted mp4 file     with the ngx_http_mp4_module might result in worker     process memory disclosure (CVE-2018-16845).

  - Bugfix: working with gRPC backends might result in     excessive memory consumption.

Changes with nginx 1.13.12 :

  - Bugfix: connections with gRPC backends might be closed     unexpectedly when returning a large response.

Changes with nginx 1.13.10

  - Feature: the 'set' parameter of the 'include' SSI     directive now allows writing arbitrary responses to a     variable; the 'subrequest_output_buffer_size' directive     defines maximum response size.

  - Feature: now nginx uses clock_gettime(CLOCK_MONOTONIC)     if available, to avoid timeouts being incorrectly     triggered on system time changes.

  - Feature: the 'escape=none' parameter of the 'log_format'     directive. Thanks to Johannes Baiter and Calin Don.

  - Feature: the $ssl_preread_alpn_protocols variable in the     ngx_stream_ssl_preread_module.

  - Feature: the ngx_http_grpc_module.

  - Bugfix: in memory allocation error handling in the 'geo'     directive.

  - Bugfix: when using variables in the     'auth_basic_user_file' directive a null character might     appear in logs. Thanks to Vadim Filimonov.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
118820	Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS：nginx 弱點 (USN-3812-1)	Nessus	Ubuntu Local Security Checks	2018/11/8	2025/9/3	medium
118840	Debian DSA-4335-1：nginx - 安全性更新	Nessus	Debian Local Security Checks	2018/11/9	2021/4/14	medium
161696	Nginx Plus R1 < R15-P2 / R16 < R16-P1 多個弱點	Nessus	Web Servers	2022/5/31	2022/5/31	medium
194118	RHEL 7：rh-nginx114-nginx (RHSA-2018:3681)	Nessus	Red Hat Local Security Checks	2024/4/27	2024/4/27	medium
118839	Debian DLA-1572-1 : nginx security update	Nessus	Debian Local Security Checks	2018/11/9	2024/7/24	medium
122908	Photon OS 2.0: Nginx PHSA-2019-2.0-0132	Nessus	PhotonOS Local Security Checks	2019/3/18	2024/7/23	medium
194067	RHEL 7 : rh-nginx112-nginx (RHSA-2018:3680)	Nessus	Red Hat Local Security Checks	2024/4/27	2024/4/27	medium
128671	openSUSE Security Update : nginx (openSUSE-2019-2120) (0-Length Headers Leak) (Data Dribble) (Resource Loop)	Nessus	SuSE Local Security Checks	2019/9/11	2022/12/5	medium
118956	nginx 1.x < 1.14.1 / 1.15.x < 1.15.6 Multiple Vulnerabilities	Nessus	Web Servers	2018/11/14	2022/4/11	medium
122295	openSUSE Security Update : nginx (openSUSE-2019-195)	Nessus	SuSE Local Security Checks	2019/2/19	2021/1/19	medium

检测

插件搜索

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium