#VU79725 Resource exhaustion in Bitcoin Core - CVE-2023-33297

Vulnerability identifier: #VU79725

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-33297

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Bitcoin Core
Other software / Other software solutions

Vendor: Bitcoin

Description

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

The vulnerability exists due to application does not properly control consumption of internal resources. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Bitcoin Core: 24.0, 24.0.1

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External links
https://github.com/bitcoin/bitcoin/pull/27610
https://github.com/bitcoin/bitcoin/issues/27623
https://github.com/bitcoin/bitcoin/blob/master/doc/release-notes/release-notes-24.1.md
https://github.com/bitcoin/bitcoin/issues/27586
https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/F2EI7SAP4QP2AJYK2JVEOO4GJ6DOBSM5/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/H3CQY277NWXY3RFCZCJ4VKT2P3ROACEJ/

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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.