CVE-2022-28946 : An issue in the component ast/parser.go of Open Policy Agent v0.39.0 causes the

An issue in the component ast/parser.go of Open Policy Agent v0.39.0 causes the application to incorrectly interpret every expression, causing a Denial of Service (DoS) via triggering out-of-range memory access.

Published 2022-05-19 19:15:08

Updated 2022-05-26 20:00:37

Source MITRE

View at NVD, CVE.org

Vulnerability category: Denial of service

Products affected by CVE-2022-28946

Openpolicyagent » Open Policy Agent » Version: 0.39.0
cpe:2.3:a:openpolicyagent:open_policy_agent:0.39.0:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2022-28946

EPSS FAQ

0.09%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 38 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2022-28946

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:N/A:P	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

References for CVE-2022-28946

https://github.com/open-policy-agent/opa/commit/e9d3828db670cbe11129885f37f08cbf04935264

ast/parser: guard against invalid domains for "some" and "every" (#4548) · open-policy-agent/opa@e9d3828 · GitHub
Patch;Third Party Advisory

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Vulnerability Details : CVE-2022-28946

Products affected by CVE-2022-28946

Exploit prediction scoring system (EPSS) score for CVE-2022-28946

CVSS scores for CVE-2022-28946

References for CVE-2022-28946