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Ubuntu Security Notice USN-2245-1
June 12, 2014
json-c vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 14.04 LTS
– Ubuntu 13.10
– Ubuntu 12.04 LTS
Summary:
json-c could be made to crash or consume CPU if it processed a specially
crafted JSON document.
Software Description:
– 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)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 14.04 LTS:
libjson0 0.11-3ubuntu1.2
Ubuntu 13.10:
libjson0 0.11-2ubuntu1.2
Ubuntu 12.04 LTS:
libjson0 0.9-1ubuntu1.1
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-2245-1
CVE-2013-6370, CVE-2013-6371
Package Information:
https://launchpad.net/ubuntu/+source/json-c/0.11-3ubuntu1.2
https://launchpad.net/ubuntu/+source/json-c/0.11-2ubuntu1.2
https://launchpad.net/ubuntu/+source/json-c/0.9-1ubuntu1.1
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