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grub2 vulnerabilities and exploits
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4.6
CVSSv2
CVE-2020-10713
A flaw was found in grub2, prior to version 2.06. An attacker may use the GRUB 2 flaw to hijack and tamper the GRUB verification process. This flaw also allows the bypass of Secure Boot protections. In order to load an untrusted or modified kernel, an attacker would first need to...
Gnu Grub2
Debian Debian Linux 10.0
Opensuse Leap 15.1
Opensuse Leap 15.2
Vmware Photon Os
3 Github repositories
1 Article
4.4
CVSSv2
CVE-2020-15705
GRUB2 fails to validate kernel signature when booted directly without shim, allowing secure boot to be bypassed. This only affects systems where the kernel signing certificate has been imported directly into the secure boot database and the GRUB image is booted directly without t...
Gnu Grub2
Redhat Enterprise Linux Atomic Host -
Redhat Openshift Container Platform 4.0
Canonical Ubuntu Linux 14.04
Canonical Ubuntu Linux 16.04
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 20.04
Debian Debian Linux 10.0
Opensuse Leap 15.1
Opensuse Leap 15.2
Redhat Enterprise Linux 7.0
Redhat Enterprise Linux 8.0
Suse Suse Linux Enterprise Server 11
Suse Suse Linux Enterprise Server 12
Suse Suse Linux Enterprise Server 15
Microsoft Windows 10 -
Microsoft Windows 10 1607
Microsoft Windows 10 1709
Microsoft Windows 10 1803
Microsoft Windows 10 1809
Microsoft Windows 10 1903
Microsoft Windows 10 1909
NA
CVE-2022-2601
A buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an overflow when calculating the max_glyph_size value, allocating a smaller than needed buffer for the glyph, this further leads to a buffer overflow and a heap based out-of-bound...
Gnu Grub2
Redhat Enterprise Linux Server Tus 8.2
Redhat Enterprise Linux Server Aus 8.2
Redhat Enterprise Linux Server Update Services For Sap Solutions 8.2
Redhat Enterprise Linux Server Update Services For Sap Solutions 8.1
Redhat Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions 8.1
Redhat Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions 8.2
Fedoraproject Fedora 37
Redhat Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions 9.0
Redhat Enterprise Linux For Power Little Endian Eus 9.0
Redhat Enterprise Linux Eus 9.0
Redhat Enterprise Linux Server Update Services For Sap Solutions 9.0
7.2
CVSSv2
CVE-2020-25647
A flaw was found in grub2 in versions before 2.06. During USB device initialization, descriptors are read with very little bounds checking and assumes the USB device is providing sane values. If properly exploited, an attacker could trigger memory corruption leading to arbitrary ...
Gnu Grub2
Redhat Enterprise Linux Server Aus 7.2
Redhat Enterprise Linux Workstation 7.0
Redhat Enterprise Linux 7.0
Redhat Enterprise Linux Server Aus 7.3
Redhat Enterprise Linux Server Aus 7.4
Redhat Enterprise Linux Server Tus 7.4
Redhat Enterprise Linux Server Tus 7.6
Redhat Enterprise Linux Server Eus 7.6
Redhat Enterprise Linux Server Aus 7.6
Redhat Enterprise Linux 8.0
Redhat Enterprise Linux Server Eus 7.7
Redhat Enterprise Linux Server Aus 7.7
Redhat Enterprise Linux Server Tus 7.7
Redhat Enterprise Linux Server Eus 8.1
Redhat Enterprise Linux Server Tus 8.2
Redhat Enterprise Linux Server Aus 8.2
Fedoraproject Fedora 33
Fedoraproject Fedora 34
Netapp Ontap Select Deploy Administration Utility -
7.2
CVSSv2
CVE-2021-20225
A flaw was found in grub2 in versions before 2.06. The option parser allows an malicious user to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data...
Gnu Grub2
Redhat Enterprise Linux Server Aus 7.2
Redhat Enterprise Linux Workstation 7.0
Redhat Enterprise Linux 7.0
Redhat Enterprise Linux Server Aus 7.3
Redhat Enterprise Linux Server Aus 7.4
Redhat Enterprise Linux Server Tus 7.4
Redhat Enterprise Linux Server Tus 7.6
Redhat Enterprise Linux Server Eus 7.6
Redhat Enterprise Linux Server Aus 7.6
Redhat Enterprise Linux 8.0
Redhat Enterprise Linux Server Eus 7.7
Redhat Enterprise Linux Server Aus 7.7
Redhat Enterprise Linux Server Tus 7.7
Redhat Enterprise Linux Server Eus 8.1
Redhat Enterprise Linux Server Tus 8.2
Redhat Enterprise Linux Server Aus 8.2
Fedoraproject Fedora 33
Fedoraproject Fedora 34
Netapp Ontap Select Deploy Administration Utility -
7.2
CVSSv2
CVE-2021-20233
A flaw was found in grub2 in versions before 2.06. Setparam_prefix() in the menu rendering code performs a length calculation on the assumption that expressing a quoted single quote will require 3 characters, while it actually requires 4 characters which allows an malicious user ...
Gnu Grub2
Redhat Enterprise Linux Server Aus 7.2
Redhat Enterprise Linux Workstation 7.0
Redhat Enterprise Linux 7.0
Redhat Enterprise Linux Server Aus 7.3
Redhat Enterprise Linux Server Aus 7.4
Redhat Enterprise Linux Server Tus 7.4
Redhat Enterprise Linux Server Tus 7.6
Redhat Enterprise Linux Server Eus 7.6
Redhat Enterprise Linux Server Aus 7.6
Redhat Enterprise Linux 8.0
Redhat Enterprise Linux Server Eus 7.7
Redhat Enterprise Linux Server Aus 7.7
Redhat Enterprise Linux Server Tus 7.7
Redhat Enterprise Linux Server Eus 8.1
Redhat Enterprise Linux Server Tus 8.2
Redhat Enterprise Linux Server Aus 8.2
Fedoraproject Fedora 33
Fedoraproject Fedora 34
Netapp Ontap Select Deploy Administration Utility -
1 Github repository
6.2
CVSSv2
CVE-2020-14372
A flaw was found in grub2 in versions before 2.06, where it incorrectly enables the usage of the ACPI command when Secure Boot is enabled. This flaw allows an attacker with privileged access to craft a Secondary System Description Table (SSDT) containing code to overwrite the Lin...
Gnu Grub2
Redhat Enterprise Linux Server Aus 7.2
Redhat Enterprise Linux Workstation 7.0
Redhat Enterprise Linux 7.0
Redhat Enterprise Linux Server Aus 7.3
Redhat Enterprise Linux Server Aus 7.4
Redhat Enterprise Linux Server Tus 7.4
Redhat Enterprise Linux Server Tus 7.6
Redhat Enterprise Linux Server Eus 7.6
Redhat Enterprise Linux Server Aus 7.6
Redhat Enterprise Linux 8.0
Redhat Enterprise Linux Server Eus 7.7
Redhat Enterprise Linux Server Aus 7.7
Redhat Enterprise Linux Server Tus 7.7
Redhat Enterprise Linux Server Eus 8.1
Redhat Enterprise Linux Server Tus 8.2
Redhat Enterprise Linux Server Aus 8.2
Fedoraproject Fedora 33
Fedoraproject Fedora 34
Netapp Cloud Backup -
Netapp Ontap Select Deploy Administration Utility -
1 Github repository
7.2
CVSSv2
CVE-2020-25632
A flaw was found in grub2 in versions before 2.06. The rmmod implementation allows the unloading of a module used as a dependency without checking if any other dependent module is still loaded leading to a use-after-free scenario. This could allow arbitrary code to be executed or...
Gnu Grub2
Redhat Enterprise Linux Server Aus 7.2
Redhat Enterprise Linux Workstation 7.0
Redhat Enterprise Linux 7.0
Redhat Enterprise Linux Server Aus 7.3
Redhat Enterprise Linux Server Aus 7.4
Redhat Enterprise Linux Server Tus 7.4
Redhat Enterprise Linux Server Tus 7.6
Redhat Enterprise Linux Server Eus 7.6
Redhat Enterprise Linux Server Aus 7.6
Redhat Enterprise Linux 8.0
Redhat Enterprise Linux Server Eus 7.7
Redhat Enterprise Linux Server Aus 7.7
Redhat Enterprise Linux Server Tus 7.7
Redhat Enterprise Linux Server Eus 8.1
Redhat Enterprise Linux Server Tus 8.2
Redhat Enterprise Linux Server Aus 8.2
Fedoraproject Fedora 33
Fedoraproject Fedora 34
Netapp Ontap Select Deploy Administration Utility -
1 Github repository
7.2
CVSSv2
CVE-2020-27749
A flaw was found in grub2 in versions before 2.06. Variable names present are expanded in the supplied command line into their corresponding variable contents, using a 1kB stack buffer for temporary storage, without sufficient bounds checking. If the function is called with a com...
Gnu Grub2
Redhat Enterprise Linux Server Aus 7.2
Redhat Enterprise Linux Workstation 7.0
Redhat Enterprise Linux 7.0
Redhat Enterprise Linux Server Aus 7.3
Redhat Enterprise Linux Server Aus 7.4
Redhat Enterprise Linux Server Tus 7.4
Redhat Enterprise Linux Server Tus 7.6
Redhat Enterprise Linux Server Eus 7.6
Redhat Enterprise Linux Server Aus 7.6
Redhat Enterprise Linux 8.0
Redhat Enterprise Linux Server Eus 7.7
Redhat Enterprise Linux Server Aus 7.7
Redhat Enterprise Linux Server Tus 7.7
Redhat Enterprise Linux Server Eus 8.1
Redhat Enterprise Linux Server Tus 8.2
Redhat Enterprise Linux Server Aus 8.2
Fedoraproject Fedora 33
Fedoraproject Fedora 34
Netapp Ontap Select Deploy Administration Utility -
6.9
CVSSv2
CVE-2020-27779
A flaw was found in grub2 in versions before 2.06. The cutmem command does not honor secure boot locking allowing an privileged malicious user to remove address ranges from memory creating an opportunity to circumvent SecureBoot protections after proper triage about grub's m...
Gnu Grub2
Redhat Enterprise Linux Server Aus 7.2
Redhat Enterprise Linux Workstation 7.0
Redhat Enterprise Linux 7.0
Redhat Enterprise Linux Server Aus 7.3
Redhat Enterprise Linux Server Aus 7.4
Redhat Enterprise Linux Server Tus 7.4
Redhat Enterprise Linux Server Tus 7.6
Redhat Enterprise Linux Server Eus 7.6
Redhat Enterprise Linux Server Aus 7.6
Redhat Enterprise Linux 8.0
Redhat Enterprise Linux Server Eus 7.7
Redhat Enterprise Linux Server Aus 7.7
Redhat Enterprise Linux Server Tus 7.7
Redhat Enterprise Linux Server Eus 8.1
Redhat Enterprise Linux Server Tus 8.2
Redhat Enterprise Linux Server Aus 8.2
Fedoraproject Fedora 33
Fedoraproject Fedora 34
Netapp Ontap Select Deploy Administration Utility -
CVSSv2
CVSSv2
CVSSv3
VMScore
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