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Gentoo Linux Security Advisory                           GLSA 202311-14
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                                           https://security.gentoo.org/
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 Severity: High
    Title: GRUB: Multiple Vulnerabilities
     Date: November 25, 2023
     Bugs: #881413, #915187
       ID: 202311-14

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Synopsis
========

Multiple vulnerabilities have been discoverd in GRUB, which may lead to
secure boot circumvention or code execution.

Background
==========

GNU GRUB is a multiboot boot loader used by most Linux systems.

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

Package        Vulnerable    Unaffected
-------------  ------------  ------------
sys-boot/grub  < 2.06-r9     >= 2.06-r9

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

Multiple vulnerabilities have been discovered in GRUB. Please review the
CVE identifiers referenced below for details.

Impact
======

Please review the referenced CVE identifiers for details.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All GRUB users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=sys-boot/grub-2.06-r9"

References
==========

[ 1 ] CVE-2022-2601
      https://nvd.nist.gov/vuln/detail/CVE-2022-2601
[ 2 ] CVE-2022-3775
      https://nvd.nist.gov/vuln/detail/CVE-2022-3775
[ 3 ] CVE-2023-4692
      https://nvd.nist.gov/vuln/detail/CVE-2023-4692
[ 4 ] CVE-2023-4693
      https://nvd.nist.gov/vuln/detail/CVE-2023-4693

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

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

 https://security.gentoo.org/glsa/202311-14

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 2023 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/

Gentoo: GLSA-202311-14: GRUB: Multiple Vulnerabilities

Multiple vulnerabilities have been discoverd in GRUB, which may lead to secure boot circumvention or code execution.

Summary

Multiple vulnerabilities have been discovered in GRUB. Please review the CVE identifiers referenced below for details.

Resolution

All GRUB users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=sys-boot/grub-2.06-r9"

References

[ 1 ] CVE-2022-2601 https://nvd.nist.gov/vuln/detail/CVE-2022-2601 [ 2 ] CVE-2022-3775 https://nvd.nist.gov/vuln/detail/CVE-2022-3775 [ 3 ] CVE-2023-4692 https://nvd.nist.gov/vuln/detail/CVE-2023-4692 [ 4 ] CVE-2023-4693 https://nvd.nist.gov/vuln/detail/CVE-2023-4693

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/202311-14

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.

Severity
Severity: High
Title: GRUB: Multiple Vulnerabilities
Date: November 25, 2023
Bugs: #881413, #915187
ID: 202311-14

Synopsis

Multiple vulnerabilities have been discoverd in GRUB, which may lead to secure boot circumvention or code execution.

Background

GNU GRUB is a multiboot boot loader used by most Linux systems.

Affected Packages

Package Vulnerable Unaffected ------------- ------------ ------------ sys-boot/grub < 2.06-r9 >= 2.06-r9

Impact

Please review the referenced CVE identifiers for details.

Workaround

There is no known workaround at this time.

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