USN-6729-1: Apache HTTP Server vulnerabilities

Releases

• Ubuntu 23.10
• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS

Packages

• apache2 - Apache HTTP server

Details

Orange Tsai discovered that the Apache HTTP Server incorrectly handled
validating certain input. A remote attacker could possibly use this
issue to perform HTTP request splitting attacks. (CVE-2023-38709)

Keran Mu and Jianjun Chen discovered that the Apache HTTP Server
incorrectly handled validating certain input. A remote attacker could
possibly use this issue to perform HTTP request splitting attacks.
(CVE-2024-24795)

Bartek Nowotarski discovered that the Apache HTTP Server HTTP/2 module
incorrectly handled endless continuation frames. A remote attacker could
possibly use this issue to cause the server to consume resources, leading
to a denial of service. (CVE-2024-27316)

Update instructions

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

Ubuntu 23.10

• apache2 - 2.4.57-2ubuntu2.4

Ubuntu 22.04

• apache2 - 2.4.52-1ubuntu4.9

Ubuntu 20.04

• apache2 - 2.4.41-4ubuntu3.17

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

References

• CVE-2024-27316
• CVE-2024-24795
• CVE-2023-38709

Related notices

• USN-6729-2: apache2-suexec-custom, apache2-data, apache2-utils, apache2-suexec-pristine, apache2-bin, apache2-ssl-dev, apache2-doc, apache2, apache2-dev
• USN-6729-3: apache2-suexec-custom, apache2-data, apache2-utils, apache2-suexec-pristine, apache2-bin, apache2-ssl-dev, apache2-doc, libapache2-mod-md, libapache2-mod-proxy-uwsgi, apache2, apache2-dev