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grub2: Integer overflow in initrd size handling

🗓️ 03 Aug 2020 11:18:05Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 2 Views

Integer overflows in grub2 initrd handling may cause heap overflow and enable code execution on 2.04 and earlier.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
IBM Security Bulletins		Security Bulletin: IBM Security Guardium is affected by multiple vulnerabilities
26 Mar 202504:05
–ibm
IBM Security Bulletins		Security Bulletin: IBM QRadar Network Packet Capture is vulnerable to Using Components with Known Vulnerabilities
30 Oct 202016:18
–ibm
Tenable Nessus		Alibaba Cloud Linux 3 : 0064: grub2 (ALINUX3-SA-2022:0064)
14 May 202500:00
–nessus
Tenable Nessus		CentOS 8 : grub2 (CESA-2020:3216)
1 Feb 202100:00
–nessus
Tenable Nessus		CentOS 7 : grub2 (RHSA-2020:3217)
31 Jul 202000:00
–nessus
Tenable Nessus		Debian DSA-4735-1 : grub2 - security update
30 Jul 202000:00
–nessus
Tenable Nessus		EulerOS 2.0 SP8 : grub2 (EulerOS-SA-2020-1853)
28 Aug 202000:00
–nessus
Tenable Nessus		EulerOS Virtualization for ARM 64 3.0.6.0 : grub2 (EulerOS-SA-2020-2000)
29 Sep 202000:00
–nessus
Tenable Nessus		EulerOS Virtualization 2.9.1 : grub2 (EulerOS-SA-2021-1601)
10 Mar 202100:00
–nessus
Tenable Nessus		GLSA-202104-05 : GRUB: Multiple vulnerabilities
3 May 202100:00
–nessus
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7.4x86_64fwupdate9-10.el7_4fwupdate-9-10.el7_4.x86_64.rpm
Red Hat Enterprise Linux7.4x86_64fwupdate-debuginfo9-10.el7_4fwupdate-debuginfo-9-10.el7_4.x86_64.rpm
Red Hat Enterprise Linux7.4x86_64fwupdate-devel9-10.el7_4fwupdate-devel-9-10.el7_4.x86_64.rpm
Red Hat Enterprise Linux7.4x86_64fwupdate-efi9-10.el7_4fwupdate-efi-9-10.el7_4.x86_64.rpm
Red Hat Enterprise Linux7.4x86_64fwupdate-libs9-10.el7_4fwupdate-libs-9-10.el7_4.x86_64.rpm
Red Hat Enterprise Linux7.4ppc64legrub21:2.02-0.86.el7_4grub2-1:2.02-0.86.el7_4.ppc64le.rpm
Red Hat Enterprise Linux7.4x86_64grub21:2.02-0.86.el7_4grub2-1:2.02-0.86.el7_4.x86_64.rpm
Red Hat Enterprise Linux7.4noarchgrub2-common1:2.02-0.86.el7_4grub2-common-1:2.02-0.86.el7_4.noarch.rpm
Red Hat Enterprise Linux7.4ppc64legrub2-debuginfo1:2.02-0.86.el7_4grub2-debuginfo-1:2.02-0.86.el7_4.ppc64le.rpm
Red Hat Enterprise Linux7.4x86_64grub2-debuginfo1:2.02-0.86.el7_4grub2-debuginfo-1:2.02-0.86.el7_4.x86_64.rpm
Rows per page

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28 Jun 2026 08:48Current
7.9High risk
Vulners AI Score7.9
CVSS 24.4
CVSS 3.15.7 - 6.4
EPSS0.01588
CWE-190
Grub twoInitrd handlingInteger overflowHeap overflowCode executionSecure bootDebianRed HatUbuntu
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