Debian Security Advisory

DLA-2907-1 apache2 -- LTS security update

Date Reported:
01 Feb 2022
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2021-44224, CVE-2021-44790.
More information:

Two vulnerabilities have been discovered in the Apache HTTP server:

  • CVE-2021-44224

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

  • CVE-2021-44790

    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 2.4.25-3+deb9u12.

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: