Ubuntu Security Notice 4360-3 - 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. It was discovered that json-c incorrectly handled certain JSON files. An attacker could possibly use this issue to execute arbitrary code. Various other issues were also addressed.
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Ubuntu Security Notice USN-4360-3
May 15, 2020
json-c regression
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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