USN-5839-1: 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

It was discovered that the Apache HTTP Server mod_dav module incorrectly
handled certain If: request headers. A remote attacker could possibly use
this issue to cause the server to crash, resulting in a denial of service.
(CVE-2006-20001)

ZeddYu_Lu discovered that the Apache HTTP Server mod_proxy_ajp module
incorrectly interpreted certain HTTP Requests. A remote attacker could
possibly use this issue to perform an HTTP Request Smuggling attack.
(CVE-2022-36760)

Dimas Fariski Setyawan Putra discovered that the Apache HTTP Server
mod_proxy module incorrectly truncated certain response headers. This may
result in later headers not being interpreted by the client.
(CVE-2022-37436)

Update instructions

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

Ubuntu 22.10

• apache2 - 2.4.54-2ubuntu1.1

Ubuntu 22.04

• apache2 - 2.4.52-1ubuntu4.3

Ubuntu 20.04

• apache2 - 2.4.41-4ubuntu3.13

Ubuntu 18.04

• apache2 - 2.4.29-1ubuntu4.26

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

References

• CVE-2006-20001
• CVE-2022-37436
• CVE-2022-36760

Related notices

• USN-5834-1: apache2-dev, apache2, apache2-bin, apache2-utils, apache2-data, apache2-doc, apache2-suexec-pristine, apache2-suexec-custom
• USN-5839-2: apache2-dev, apache2, apache2-bin, apache2-utils, apache2-data, apache2-doc, apache2-suexec-pristine, apache2-suexec-custom