JsonCpp 1.8.4 json_reader.cpp readValue JSON Request denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.3$0-$5k0.00

A vulnerability has been found in JsonCpp 1.8.4 and classified as problematic. This vulnerability affects the function Json::OurReader::readValue of the file json_reader.cpp. The manipulation as part of a JSON Request leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes:

An issue was discovered in JsonCpp 1.8.4. An unhandled exception vulnerability exists in Json::OurReader::readValue() in json_reader.cpp after throwing an instance of "Json::RuntimeError what(): Exceeded stackLimit." Specially crafted JSON requests can cause an unhandled exception resulting in denial of service. An attacker can send malicious JSON to trigger this vulnerability.

The bug was discovered 09/26/2018. The weakness was released 10/01/2018 (Website). The advisory is shared for download at github.com. This vulnerability was named CVE-2018-17851 since 10/01/2018. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 5 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.

Entry connected to this vulnerability is available at 124635.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Denial of service
CWE: CWE-404
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/26/2018 🔍
10/01/2018 +4 days 🔍
10/01/2018 +0 days 🔍
10/01/2018 +0 days 🔍
05/19/2023 +1691 days 🔍

Sourcesinfo

Advisory: 823
Status: Not defined

CVE: CVE-2018-17851 (🔍)
See also: 🔍

Entryinfo

Created: 10/01/2018 14:29
Updated: 05/19/2023 15:59
Changes: 10/01/2018 14:29 (41), 03/28/2020 13:31 (2), 05/19/2023 15:59 (2)
Complete: 🔍

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