Nginx NJS 0.7.2 njs_json.c njs_json_parse_iterator_call use after free

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

A vulnerability was found in Nginx NJS 0.7.2 (Web Server). It has been declared as critical. This vulnerability affects the function njs_json_parse_iterator_call of the file njs_json.c. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Nginx NJS v0.7.2 was discovered to contain a heap-use-after-free bug caused by illegal memory copy in the function njs_json_parse_iterator_call at njs_json.c.

The weakness was presented 10/29/2022 as 480. The advisory is shared for download at github.com. This vulnerability was named CVE-2022-43286 since 10/17/2022. There are known technical details, but no exploit is available.

Applying the patch 2ad0ea24a58d570634e09c2e58c3b314505eaa6a is able to eliminate this problem. The bugfix is ready for download at github.com.

Productinfo

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Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
ATT&CK: Unknown

Local: No
Remote: Partially

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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 2ad0ea24a58d570634e09c2e58c3b314505eaa6a

Timelineinfo

10/17/2022 🔍
10/29/2022 +12 days 🔍
10/29/2022 +0 days 🔍
10/29/2022 +0 days 🔍

Sourcesinfo

Advisory: 480
Status: Confirmed

CVE: CVE-2022-43286 (🔍)

Entryinfo

Created: 10/29/2022 11:57
Changes: 10/29/2022 11:57 (44)
Complete: 🔍

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