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             AUSCERT External Security Bulletin Redistribution

                               ESB-2023.1711
               USN-5942-2: Apache HTTP Server vulnerability
                               23 March 2023

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Apache HTTP Server
Publisher:         Ubuntu
Operating System:  Ubuntu
Resolution:        Patch/Upgrade
CVE Names:         CVE-2023-25690  

Original Bulletin: 
   https://ubuntu.com/security/notices/USN-5942-2

Comment: CVSS (Max):  9.8 CVE-2023-25690 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
         CVSS Source: NVD
         Calculator:  https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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USN-5942-2: Apache HTTP Server vulnerability

22 March 2023

Apache HTTP Server could allow unintended access to network services.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and
Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Releases

  o Ubuntu 16.04 ESM

Packages

  o apache2 - Apache HTTP server

Details

USN-5942-1 fixed vulnerabilities in Apache HTTP Server. This update
provides the corresponding update for CVE-2023-25690 for Ubuntu 16.04 ESM.

Original advisory details:

Lars Krapf discovered that the Apache HTTP Server mod_proxy module
incorrectly handled certain configurations. A remote attacker could
possibly use this issue to perform an HTTP Request Smuggling attack.
( CVE-2023-25690 )

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and
Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package
versions:

Ubuntu 16.04

  o apache2 - 2.4.18-2ubuntu3.17+esm10
    Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References

  o CVE-2023-25690

Related notices

  o USN-5942-1 : libapache2-mod-proxy-uwsgi, apache2-suexec-custom,
    apache2-doc, apache2-ssl-dev, apache2-utils, apache2-bin,
    apache2-suexec-pristine, apache2-dev, apache2, apache2-data,
    libapache2-mod-md

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===========================================================================
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The University of Queensland
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