==========================================================================
Ubuntu Security Notice USN-6510-1
November 23, 2023
apache2 vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.04 LTS (Available with Ubuntu Pro)
- Ubuntu 16.04 LTS (Available with Ubuntu Pro)
- Ubuntu 14.04 LTS (Available with Ubuntu Pro)
Summary:
Apache HTTP Server could be made to crash if it received a specially
crafted request.
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.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 18.04 LTS (Available with Ubuntu Pro):
   apache2                         2.4.29-1ubuntu4.27+esm1
Ubuntu 16.04 LTS (Available with Ubuntu Pro):
   apache2                         2.4.18-2ubuntu3.17+esm11
Ubuntu 14.04 LTS (Available with Ubuntu Pro):
   apache2                         2.4.7-1ubuntu4.22+esm9
In general, a standard system update will make all the necessary changes.
References:
   https://ubuntu.com/security/notices/USN-6510-1
   CVE-2023-31122