CVE-2019-1010239 Null dereference in cJSON

High 7.5 Published 19 Jul 2019 Updated 5 Aug 2024

Attackers can cause denial of service via crafted JSON files due to a null dereference in the cJSON library.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2019-1010239?

CVE-2019-1010239 is a high-severity vulnerability in DaveGamble/cJSON cJSON, published on 19 Jul 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

DaveGamble/cJSON cJSON 1.7.8 is affected by: Improper Check for Unusual or Exceptional Conditions. The impact is: Null dereference, so attack can cause denial of service. The component is: cJSON_GetObjectItemCaseSensitive() function. The attack vector is: crafted json file. The fixed version is: 1.7.9 and later.

Weakness: CWE-754, CWE-476

Which versions are affected by CVE-2019-1010239?

It affects 2 products.

Products include Davegamble Cjson, Oracle Timesten In-Memory Database.

How do I fix CVE-2019-1010239?

Upgrade to a fixed version.

Is CVE-2019-1010239 being exploited?

There is no known exploitation of CVE-2019-1010239 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2019-1010239, GHSA-fqq7-vx9f-v496.