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Gentoo: GLSA-202104-05 Normal: GRUB Multiple Threats Detected

gentoo
Calendar Grey April 30, 2021
Dist Gentoo Esm H88
Recent security flaws found in GRUB pose a risk to UEFI Secure Boot functionality in Gentoo installations. Timely patches are essential to safeguard systems.
Multiple vulnerabilities have been found in GRUB, the worst might allow for circumvention of UEFI Secure Boot.

Summary

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

Topics%20covered

Topics Covered

security advisory gentoo multiple vulnerabilities multiple threats normal severity secure boot uefi grub boot loader GRUB

Resolution

All GRUB users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=sys-devel/grub-2.06_rc1"
After upgrading, make sure to run the grub-install command with options appropriate for your system. See the GRUB Quick Start guide in the references below for examples. Your system will be vulnerable until this action is performed.

References

[ 1 ] CVE-2020-10713 https://nvd.nist.gov/vuln/detail/CVE-2020-10713 [ 2 ] CVE-2020-14308 https://nvd.nist.gov/vuln/detail/CVE-2020-14308 [ 3 ] CVE-2020-14309 https://nvd.nist.gov/vuln/detail/CVE-2020-14309 [ 4 ] CVE-2020-14310 https://nvd.nist.gov/vuln/detail/CVE-2020-14310 [ 5 ] CVE-2020-14311 https://nvd.nist.gov/vuln/detail/CVE-2020-14311 [ 6 ] CVE-2020-14372 https://nvd.nist.gov/vuln/detail/CVE-2020-14372 [ 7 ] CVE-2020-15705 https://nvd.nist.gov/vuln/detail/CVE-2020-15705 [ 8 ] CVE-2020-15706 https://nvd.nist.gov/vuln/detail/CVE-2020-15706 [ 9 ] CVE-2020-15707 https://nvd.nist.gov/vuln/detail/CVE-2020-15707 [ 10 ] CVE-2020-25632 https://nvd.nist.gov/vuln/detail/CVE-2020-25632 [ 11 ] CVE-2020-25647 https://nvd.nist.gov/vuln/detail/CVE-2020-25647 [ 12 ] CVE-2020-27749 https://nvd.nist.gov/vuln/detail/CVE-2020-27749 [ 13 ] CVE-2020-27779 https://nvd.nist.gov/vuln/detai...

Read the Full Advisory

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202104-05
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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: Normal
Title: GRUB: Multiple vulnerabilities
Date: April 30, 2021
Bugs: #734654, #773991
ID: 202104-05

Topics%20covered

Topics Covered

security advisory gentoo multiple vulnerabilities multiple threats normal severity secure boot uefi grub boot loader GRUB

Synopsis

Multiple vulnerabilities have been found in GRUB, the worst might allow for circumvention of UEFI Secure Boot.

Background

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

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-devel/grub < 2.06_rc1 >= 2.06_rc1

Impact

===== Please review the referenced CVE identifiers for details.

Workaround

There is no known workaround at this time.

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