Denial of service in Grin
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-6638 |
| CWE-ID | CWE-20 |
| 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) Input validation error
EUVDB-ID: #VU24493
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-6638
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input when following a question in the dev/crypto gitter channel. A remote attacker can cause a denial of service condition on the target system.
Install updates from vendor's website.
Vulnerable software versionsGrin: 0.4.0 - 2.1.1
External linkshttp://github.com/mimblewimble/grin/compare/v2.1.1...v3.0.0
http://github.com/mimblewimble/grin-security/blob/master/CVEs/CVE-2020-6638.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.
