USN-5942-1: Apache HTTP Server vulnerabilities

Releases

• Ubuntu 22.10
• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM

Packages

• apache2 - Apache HTTP server

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)

Dimas Fariski Setyawan Putra discovered that the Apache HTTP Server
mod_proxy_uwsgi module incorrectly handled certain special characters. A
remote attacker could possibly use this issue to perform an HTTP Request
Smuggling attack. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04
LTS, and Ubuntu 22.10. (CVE-2023-27522)

Update instructions

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

Ubuntu 22.10

• apache2 - 2.4.54-2ubuntu1.2

Ubuntu 22.04

• apache2 - 2.4.52-1ubuntu4.4

Ubuntu 20.04

• apache2 - 2.4.41-4ubuntu3.14

Ubuntu 18.04

• apache2 - 2.4.29-1ubuntu4.27

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

References

• CVE-2023-27522
• CVE-2023-25690

Related notices

• USN-5942-2: apache2-dev, apache2-utils, apache2-data, apache2-bin, apache2-suexec-pristine, apache2, apache2-doc, apache2-suexec-custom