[USN-5737-1] APR-util vulnerability

[Nishit Majithia]

==========================================================================
Ubuntu Security Notice USN-5737-1
November 23, 2022

apr-util vulnerability
==========================================================================

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

- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM

Summary:

APR-util could be made to crash or leak sensitive information if it opened
a specially crafted SDBM file.

Software Description:
- apr-util: Apache Portable Runtime Utility Library

Details:

It was discovered that APR-util did not properly handle memory when using  
SDBM database files. A local attacker with write access to the database    
can make a program or process using these functions crash, and cause a     
denial of service.

Update instructions:

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

Ubuntu 16.04 ESM:
  libaprutil1                     1.5.4-1ubuntu0.1~esm1

Ubuntu 14.04 ESM:
  libaprutil1                     1.5.3-1ubuntu0.1~esm1

After a standard system update you need to restart any applications using
APR-util, such as Subversion and Apache, to make all the necessary changes.

References:
  https://ubuntu.com/security/notices/USN-5737-1
  CVE-2017-12618
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