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Ubuntu 23.10: USN-6506-1 Moderate: Apache HTTP Server DoS Threat

ubuntu
Calendar Grey November 22, 2023
Dist Ubuntu Esm H88
Resolved vulnerabilities in Apache HTTP Server impact Ubuntu versions 20.04 through 23.10, with detailed update guidelines available.
Several security issues were fixed in Apache HTTP Server.

Summary

Several security issues were fixed in Apache HTTP Server.

Software Description:

- apache2: Apache HTTP server

Details:

David Shoon discovered that the Apache HTTP Server mod_macro module

incorrectly handled certain memory operations. A remote attacker could

possibly use this issue to cause the server to crash, resulting in a denial

of service. (CVE-2023-31122)

Prof. Sven Dietrich, Isa Jafarov, Prof. Heejo Lee, and Choongin Lee

discovered that the Apache HTTP Server incorrectly handled certain HTTP/2

connections. A remote attacker could possibly use this issue to cause the

server to consume resources, leading to a denial of service. This issue

only affected Ubuntu 23.04, and Ubuntu 23.10. (CVE-2023-43622)

Will Dormann and David Warren discovered that the Apache HTTP Server

incorrectly handled memory when handling HTTP/2 connections. A remote

attacker could possibly use this issue to cause the server to consume

resources, leading to a denial of service. (CV...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service update apache software issue ubuntu memory operations

Update Instructions

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

Ubuntu 23.10:
   apache2                         2.4.57-2ubuntu2.1

Ubuntu 23.04:
   apache2                         2.4.55-1ubuntu2.1

Ubuntu 22.04 LTS:
   apache2                         2.4.52-1ubuntu4.7

Ubuntu 20.04 LTS:
   apache2                         2.4.41-4ubuntu3.15

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

References

https://ubuntu.com/security/notices/USN-6506-1

CVE-2023-31122, CVE-2023-43622, CVE-2023-45802

Ubuntu Security Notice USN-6506-1

Topics%20covered

Topics Covered

security advisory denial of service update apache software issue ubuntu memory operations

Package Information

https://launchpad.net/ubuntu/+source/apache2/2.4.57-2ubuntu2.1

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