Summaryinfo

A vulnerability was found in Dave Gamble cJSON Library up to 1.7.3. It has been classified as problematic. Impacted is an unknown function. Performing a manipulation results in use after free. This vulnerability is identified as CVE-2018-1000217. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is recommended. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Dave Gamble cJSON Library up to 1.7.3 (Software Library). This affects an unknown code block. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on availability. The summary by CVE is:

Dave Gamble cJSON version 1.7.3 and earlier contains a CWE-416: Use After Free vulnerability in cJSON library that can result in Possible crash, corruption of data or even RCE. This attack appear to be exploitable via Depends on how application uses cJSON library. If application provides network interface then can be exploited over a network, otherwise just local.. This vulnerability appears to have been fixed in 1.7.4.

The bug was discovered 03/01/2018. The weakness was released 08/20/2018 (GitHub Repository). It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2018-1000217 since 08/20/2018. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 172 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 1.7.4 eliminates this vulnerability.

Entries connected to this vulnerability are available at VDB-123050 and VDB-123049. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Software Library

Vendor

• Dave Gamble

Name

• cJSON Library

Version

• 1.7.0
• 1.7.1
• 1.7.2
• 1.7.3

CPE 2.3info

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CPE 2.2info

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