USN-3783-1: Apache HTTP Server vulnerabilities

3 October 2018

apache2 vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 18.04 LTS

Summary

Several security issues were fixed in the Apache HTTP Server.

Software Description

  • apache2 - Apache HTTP server

Details

Robert Swiecki discovered that the Apache HTTP Server HTTP/2 module incorrectly destroyed certain streams. A remote attacker could possibly use this issue to cause the server to crash, leading to a denial of service. (CVE-2018-1302)

Craig Young discovered that the Apache HTTP Server HTTP/2 module incorrectly handled certain requests. A remote attacker could possibly use this issue to cause the server to consume resources, leading to a denial of service. (CVE-2018-1333)

Gal Goldshtein discovered that the Apache HTTP Server HTTP/2 module incorrectly handled large SETTINGS frames. A remote attacker could possibly use this issue to cause the server to consume resources, leading to a denial of service. (CVE-2018-11763)

Update instructions

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

Ubuntu 18.04 LTS
apache2-bin - 2.4.29-1ubuntu4.4

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References