CVE-2020-36661 : A vulnerability was found in Kong lua-multipart 0.5.8-1. It has been declared as

A vulnerability was found in Kong lua-multipart 0.5.8-1. It has been declared as problematic. This vulnerability affects the function is_header of the file src/multipart.lua. The manipulation leads to inefficient regular expression complexity. Upgrading to version 0.5.9-1 is able to address this issue. The patch is identified as d632e5df43a2928fd537784a99a79dec288bf01b. It is recommended to upgrade the affected component. VDB-220642 is the identifier assigned to this vulnerability.

Published 2023-02-12 21:15:11

Updated 2024-05-17 01:48:55

Source VulDB

View at NVD, CVE.org

Products affected by CVE-2020-36661

Konghq » Multipart » Version: 0.5.8-1 For LUA
cpe:2.3:a:konghq:multipart:0.5.8-1:*:*:*:*:lua:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2020-36661

EPSS FAQ

0.19%

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

~ 57 %

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

CVSS scores for CVE-2020-36661

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
2.7	LOW	AV:A/AC:L/Au:S/C:N/I:N/A:P	5.1	2.9	VulDB
Access Vector: Adjacent Network Access Complexity: Low Authentication: Single Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
3.5	LOW	CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L	2.1	1.4	VulDB
Attack Vector: Adjacent Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: Low
3.5	LOW	CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L	2.1	1.4	VulDB
Attack Vector: Adjacent Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: Low
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

CWE ids for CVE-2020-36661

CWE-1333 Inefficient Regular Expression Complexity

The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles.

Assigned by: cna@vuldb.com (Primary)

References for CVE-2020-36661

https://vuldb.com/?ctiid.220642

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Permissions Required;Third Party Advisory
https://github.com/Kong/lua-multipart/commit/d632e5df43a2928fd537784a99a79dec288bf01b

Merge pull request #34 from Kong/fix/vulnerable-pattern · Kong/lua-multipart@d632e5d · GitHub
Patch
https://github.com/Kong/lua-multipart/pull/34

replace `is_header()` check pattern by javierguerragiraldez · Pull Request #34 · Kong/lua-multipart · GitHub
Issue Tracking;Patch
https://github.com/Kong/lua-multipart/releases/tag/0.5.9-1

Release 0.5.9-1 · Kong/lua-multipart · GitHub
Patch;Release Notes
https://vuldb.com/?id.220642

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Third Party Advisory

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Vulnerability Details : CVE-2020-36661

Products affected by CVE-2020-36661

Exploit prediction scoring system (EPSS) score for CVE-2020-36661

CVSS scores for CVE-2020-36661

CWE ids for CVE-2020-36661

References for CVE-2020-36661