1. Ubuntu Security Notices
  2. USN-2245-1

USN-2245-1: json-c vulnerabilities

Publication date

12 June 2014

Overview

json-c could be made to crash or consume CPU if it processed a specially crafted JSON document.

Releases

Packages

  • json-c - JSON manipulation library

Details

Florian Weimer discovered that json-c incorrectly handled buffer lengths.
An attacker could use this issue with a specially-crafted large JSON
document to cause json-c to crash, resulting in a denial of service.
(CVE-2013-6370)

Florian Weimer discovered that json-c incorrectly handled hash arrays. An
attacker could use this issue with a specially-crafted JSON document to
cause json-c to consume CPU resources, resulting in a denial of service.
(CVE-2013-6371)

Florian Weimer discovered that json-c incorrectly handled buffer lengths.
An attacker could use this issue with a specially-crafted large JSON
document to cause json-c to crash, resulting in a denial of service.
(CVE-2013-6370)

Florian Weimer discovered that json-c incorrectly handled hash arrays. An
attacker could use this issue with a specially-crafted JSON document to
cause json-c to consume CPU resources, resulting in a denial of service.
(CVE-2013-6371)

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
14.04 trusty libjson0 –  0.11-3ubuntu1.2
13.10 saucy libjson0 –  0.11-2ubuntu1.2
12.04 precise libjson0 –  0.9-1ubuntu1.1

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References

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