JSON++ up to 2016-06-15 json.y yyparse out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability was found in JSON++ up to 2016-06-15 and classified as critical. Affected by this issue is the function yyparse of the file json.y. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

JSON++ through 2016-06-15 has a buffer over-read in yyparse() in json.y.

The bug was discovered 08/13/2018. The weakness was presented 09/16/2018 (Website). The advisory is shared for download at github.com. This vulnerability is handled as CVE-2018-17072 since 09/15/2018. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 33 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

See VDB-149250, VDB-149251 and VDB-149254 for similar entries.




CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍


VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍


Class: Out-of-bounds
CWE: CWE-125 / CWE-119

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍


08/13/2018 🔍
09/15/2018 +32 days 🔍
09/15/2018 +0 days 🔍
09/16/2018 +1 days 🔍
09/16/2018 +0 days 🔍
05/16/2023 +1703 days 🔍


Advisory: 11
Status: Not defined

CVE: CVE-2018-17072 (🔍)
See also: 🔍


Created: 09/16/2018 07:36 AM
Updated: 05/16/2023 12:45 PM
Changes: 09/16/2018 07:36 AM (56), 03/24/2020 08:47 AM (1), 05/16/2023 12:45 PM (3)
Complete: 🔍
Cache ID: 3:F34:40


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