Improper Resource Shutdown or Release in mimblewimble Grin



Published: 2020-05-06 | Updated: 2020-08-08
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-12439
CWE-ID CWE-404
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Grin
Web applications / Modules and components for CMS

Vendor mimblewimble

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Improper Resource Shutdown or Release

EUVDB-ID: #VU34412

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-12439

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

Grin before 3.1.0 allows attackers to adversely affect availability of data on a Mimblewimble blockchain.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Grin: 3.0.0

External links

http://github.com/mimblewimble/grin/issues/3235
http://github.com/mimblewimble/grin/pull/3236
http://github.com/mimblewimble/grin-security/blob/master/CVEs/CVE-2020-12439.md


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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