An uwsgi security update has been released for Debian GNU/Linux 9 LTS to address a server to crash (DoS) issue.

DLA 2768-1: uwsgi security update

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Debian LTS Advisory DLA-2768-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Sylvain Beucler
September 29, 2021   https://wiki.debian.org/LTS
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Package : uwsgi
Version : 2.0.14+20161117-3+deb9u4
CVE ID : CVE-2021-36160

It was discovered that the uwsgi proxy module for Apache2
(mod_proxy_uwsgi) can read above the allocated memory when processing
a request with a carefully crafted uri-path. An attacker may cause the
server to crash (DoS).

For Debian 9 stretch, this problem has been fixed in version
2.0.14+20161117-3+deb9u4.

We recommend that you upgrade your uwsgi packages.

For the detailed security status of uwsgi please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/uwsgi

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at:   https://wiki.debian.org/LTS