Denial of service in Bitcoin core



Published: 2020-09-14
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-17145
CWE-ID CWE-399
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Subscribe
Bitcoin Core
Other software / Other software solutions

Bitcoin Knots
Server applications / Other server solutions

Vendor Bitcoin
Bitcoin Knots

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Resource management error

EUVDB-ID: #VU46673

Risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2018-17145

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper management of internal resources with the applicatoin. A remote attacker can flood the application with multiple transaction inv messages with random hashes and perform a denial of service (DoS) attack, aka INVDoS.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Bitcoin Core: 0.16.0 - 0.16.1

Bitcoin Knots: 0.16.0 - 0.16.1

External links

http://en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures#CVE-2018-17145
http://github.com/bitcoin/bitcoin/blob/v0.16.2/doc/release-notes.md
http://invdos.net
http://invdos.net/paper/CVE-2018-17145.pdf


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. However, proof of concept for this vulnerability is available.



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