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Ubuntu 20.04 LTS: USN-4360-1 Critical: Json-C Arbitrary Code Execution

ubuntu
Calendar Grey May 14, 2020
Dist Ubuntu Esm H88
Unveil the json-c exploit in Ubuntu which permits unrestrained code execution by utilizing specifically designed JSON files.
json-c could be made to execute arbitrary code if it received a specially crafted JSON file.

Summary

json-c could be made to execute arbitrary code if it received

a specially crafted JSON file.

Software Description:

- json-c: JSON manipulation library

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 20.04 LTS:
  libjson-c4                      0.13.1+dfsg-7ubuntu0.1

Ubuntu 19.10:
  libjson-c4                      0.13.1+dfsg-4ubuntu0.1

Ubuntu 18.04 LTS:
  libjson-c3                      0.12.1-1.3ubuntu0.1

Ubuntu 16.04 LTS:
  libjson-c2                      0.11-4ubuntu2.1
  libjson0                        0.11-4ubuntu2.1

Ubuntu 14.04 ESM:
  libjson-c2                      0.11-3ubuntu1.2+esm1
  libjson0                        0.11-3ubuntu1.2+esm1

Ubuntu 12.04 ESM:
  libjson0                        0.9-1ubuntu1.2

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

References

https://ubuntu.com/security/notices/USN-4360-1

CVE-2020-12762

Severity
critical
Lowest
Low
Medium
High
Critical

May 14, 2020

Package Information

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