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json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend

A flaw was found in json-c. In printbuf_memappend, certain crafted values can overflow the memory allowing an attacker to write past the memory boundary. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability

json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend.

json-c: JSON manipulation library json-c could be made to execute arbitrary code if it received a specially crafted JSON file.

json-c: JSON manipulation library Details: USN-4360-1 fixed a vulnerability in json-c. The security fix introduced a memory leak that was reverted in USN-4360-2 and USN-4360-3. This update provides the correct fix update for CVE-2020-12762. Original advisory json-c could be made to execute arbitrary code if it received a specially crafted JSON file.

JSON-C implements a reference counting object model that allows users to easily construct JavaScript Object Notation objects in C, output them as JSON formatted strings, and parse JSON formatted strings back into the C representation of JSON objects. Security Fix: * json-c: integer overflow and out-of-bounds write via a large JSON file For more details about the security issue, including the imp ...

JSON-C implements a reference counting object model that allows you to easily construct JSON objects in C, output them as JSON formatted strings and parse JSON formatted strings back into the C representation of JSON objects. It aims to conform to RFC 7159.

JSON-C implements a reference counting object model that allows you to easily construct JSON objects in C, output them as JSON formatted strings and parse JSON formatted strings back into the C representation of JSON objects. It aims to conform to RFC 7159.

JSON-C implements a reference counting object model that allows you to easily construct JSON objects in C, output them as JSON formatted strings and parse JSON formatted strings back into the C representation of JSON objects. It aims to conform to RFC 7159.

Tobias Stoeckmann discovered an integer overflow in the json-c JSON library, which could result in denial of service or potentially the execution of arbitrary code if large malformed JSON files are processed.


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