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The following commit(s) were added to refs/heads/master by this push:
new a3e81a4 docs: added "Apache APISIX not affected by NGINX
CVE-2021-23017" (#362)
a3e81a4 is described below
commit a3e81a4c643d33cbfc38812c99276c3e49a31690
Author: Serendipity96 <[email protected]>
AuthorDate: Wed Jun 9 11:34:32 2021 +0800
docs: added "Apache APISIX not affected by NGINX CVE-2021-23017" (#362)
Co-authored-by: 琚致远 <[email protected]>
Co-authored-by: liuxiran <[email protected]>
---
...-APISIX-not-affected-by-NGINX-CVE-2021-23017.md | 43 ++++++++++++++++++++++
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+---
+title: "Apache APISIX not affected by NGINX CVE-2021-23017"
+author: Ruofei Zhao
+authorURL: "https://github.com/Serendipity96";
+authorImageURL: "https://avatars.githubusercontent.com/u/23514812?v=4";
+---
+> [@Serendipity96](https://github.com/Serendipity96), Apache APISIX
contributor from [Shenzhen Zhiliu Technology Co.](https://www.apiseven.com/)
+>
+
+<!--truncate-->
+On May 26, NGINX issued a security announcement that fixed a DNS resolver
vulnerability (CVE -2021-23017) in the NGINX resolver.
+
+`ngx_resolver_copy()` handles DNS responses with errors. When the "resolver"
instruction is used in the NGINX configuration file, it might allow an attacker
who is able to forge UDP packets from the DNS server to cause 1-byte memory
overwrite, resulting in worker process crash or other potential impacts.
+
+Vulnerability level: high risk, CVSS score 8.1
+
+Affected versions: NGINX 0.6.18 - 1.20.0
+
+If you want to know more details, you can visit the following
link：https://cve.mitre.org/cgi-bin/cvename.cgi?name=2021-23017
+
+Two days before this security vulnerability was disclosed, on May 24, [Apache
APISIX released version
2.6](https://mp.weixin.qq.com/s?__biz=MzI1MDU3NjQ5OA==&mid=2247485444&idx=1&sn=5b0bab964490dc2d7a7b25262d9396b2&chksm=e9816319def6ea0fbdafa69426718184e042d6d1cde1d20e410e6ee414756960273f9d625bd2&scene=21#wechat_redirect).
This version contains many excellent features, such as support for using Java
to write plugins. Apache APISIX 2.6 is not affected by this vulnerability.
+
+Apache APISIX only uses some features of NGINX, other core functions, such as：
+
+- Route matching
+- IP matching
+- DNS resolve
+- Dynamic Upstream
+- Dynamic Certificate
+
+are all implemented by Apache APISIX instead of the built-in mechanism of
NGINX, so it will not be affected by this security vulnerability.
+
+## Apache APISIX
+
+Apache APISIX is a dynamic, real-time, high-performance API gateway that
provides rich traffic management features such as load balancing, dynamic
upstream, grayscale publishing, service meltdown , authentication ,
observability and so on.
+
+You can use Apache APISIX to handle traditional north-south traffic, as well
as east-west traffic between services.
+
+In the cloud-native era, dynamic and observability are standard features of
API gateway.
+
+This architecture of Apache APISIX can not only meet the elastic scaling and
rapid release under the cloud-native architecture, but also be more efficient,
flexible and secure. It also cooperates with SkyWalking deeply in
observability, improving service management capability greatly.
+
+Welcome to follow and use Apache APISIX: https://github.com/apache/apisix
