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Debian LTS Advisory DLA-2907-1                [email protected]
https://www.debian.org/lts/security/                         Anton Gladky
February 01, 2022                             https://wiki.debian.org/LTS
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Package        : apache2
Version        : 2.4.25-3+deb9u12
CVE ID         : CVE-2021-44224 CVE-2021-44790

Two vulnerabilities have been discovered in the Apache HTTP server:


    When operating as a forward proxy, Apache was depending on the setup
    suspectable to denial of service or Server Side Request forgery.


    A buffer overflow in mod_lua may result in denial of service or potentially
    the execution of arbitrary code.

For Debian 9 stretch, these problems have been fixed in version

We recommend that you upgrade your apache2 packages.

For the detailed security status of apache2 please refer to
its security tracker page at:

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