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Gentoo Linux Security Advisory                           GLSA 202401-23
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                                           https://security.gentoo.org/
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 Severity: Low
    Title: libuv: Buffer Overread
     Date: January 16, 2024
     Bugs: #800986
       ID: 202401-23

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Synopsis
========

A buffer overread vulnerability has been found in libuv.

Background
==========

libuv is a multi-platform support library with a focus on asynchronous
I/O.

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

Package         Vulnerable    Unaffected
--------------  ------------  ------------
dev-libs/libuv  < 1.41.1      >= 1.41.1

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

libuv fails to ensure that a pointer lies within the bounds of a defined
buffer in the uv__idna_toascii() function before reading and
manipulating the memory at that address.

Impact
======

The overread can result in information disclosure or application crash.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All libuv users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-libs/libuv-1.41.1"

References
==========

[ 1 ] CVE-2021-22918
      https://nvd.nist.gov/vuln/detail/CVE-2021-22918

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

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

 https://security.gentoo.org/glsa/202401-23

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/