[USN-6784-1] cJSON vulnerabilities

[Allen Huang]

==========================================================================
Ubuntu Security Notice USN-6784-1
May 23, 2024

cjson vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 24.04 LTS
- Ubuntu 23.10
- Ubuntu 22.04 LTS

Summary:

cJSON could be made to crash if it received specially crafted
input.

Software Description:
- cjson: Ultralightweight JSON parser in ANSI C (development files)

Details:

It was discovered that cJSON incorrectly handled certain input. An
attacker could possibly use this issue to cause cJSON to crash, resulting
in a denial of service. This issue only affected Ubuntu 22.04 LTS and
Ubuntu 23.10. (CVE-2023-50471, CVE-2023-50472)

Luo Jin discovered that cJSON incorrectly handled certain input. An
attacker could possibly use this issue to cause cJSON to crash, resulting
in a denial of service. (CVE-2024-31755)

Update instructions:

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

Ubuntu 24.04 LTS
   libcjson1                       1.7.17-1ubuntu0.1~esm2
                                   Available with Ubuntu Pro

Ubuntu 23.10
   libcjson1                       1.7.16-1ubuntu0.2

Ubuntu 22.04 LTS
   libcjson1                       1.7.15-1ubuntu0.1~esm2
                                   Available with Ubuntu Pro

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

References:
   https://ubuntu.com/security/notices/USN-6784-1
   CVE-2023-50471, CVE-2023-50472, CVE-2024-31755

Package Information:
   https://launchpad.net/ubuntu/+source/cjson/1.7.16-1ubuntu0.2

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