Ubuntu alert USN-4360-3 (json-c)

From:
             
 
"Leonidas S. Barbosa" <leo.barbosa@canonical.com> 
To:
             
 
ubuntu-security-announce@lists.ubuntu.com 
Subject:
             
 
[USN-4360-3] json-c regression 
Date:
             
 
Fri, 15 May 2020 17:21:28 -0300
Message-ID:
             
 
<20200515202128.GA2467501@d4rkl41n>
==========================================================================
Ubuntu Security Notice USN-4360-3
May 15, 2020

json-c regression
==========================================================================

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

- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM

Summary:

USN-4360-1 introduced a regression in json-c.

Software Description:
- json-c: JSON manipulation library

Details:

USN-4360-1 fixed a vulnerability in json-c. The security fix introduced
a memory leak in some scenarios. This update reverts the security fix
pending further investigation.

We apologize for the inconvenience.

Original advisory details:

 It was discovered that json-c incorrectly handled certain JSON files.
 An attacker could possibly use this issue to execute arbitrary code.

Update instructions:

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

Ubuntu 14.04 ESM:
  libjson-c2                      0.11-3ubuntu1.2+esm2
  libjson0                        0.11-3ubuntu1.2+esm2

Ubuntu 12.04 ESM:
  libjson0                        0.9-1ubuntu1.3

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

References:
  https://usn.ubuntu.com/4360-3
  https://usn.ubuntu.com/4360-1
  https://launchpad.net/bugs/1878723
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