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Gentoo Linux Security Advisory                           GLSA 202408-12
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: Bitcoin: Denial of Service
     Date: August 07, 2024
     Bugs: #908084
       ID: 202408-12

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Synopsis
========

A vulnerability has been discovered in Bitcoin, which can lead to a
denial of service.

Background
==========

Bitcoin Core consists of both "full-node" software for fully validating
the blockchain as well as a bitcoin wallet.

Affected packages
=================

Package           Vulnerable    Unaffected
----------------  ------------  ------------
net-p2p/bitcoind  < 25.0        >= 25.0

Description
===========

Please review the CVE identifier referenced below for details.

Impact
======

Bitcoin Core, when debug mode is not used, allows attackers to cause a
denial of service (CPU consumption) because draining the inventory-to-
send queue is inefficient, as exploited in the wild in May 2023.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Bitcoin users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-p2p/bitcoind-25.0"

References
==========

[ 1 ] CVE-2023-33297
      https://nvd.nist.gov/vuln/detail/CVE-2023-33297

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

 https://security.gentoo.org/glsa/202408-12

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2024 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5