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nvd[email protected]NVD:CVE-2020-15707
HistoryJul 29, 2020 - 6:15 p.m.

CVE-2020-15707

2020-07-2918:15:14
CWE-362
CWE-190
web.nvd.nist.gov
1

4.4 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:M/Au:N/C:P/I:P/A:P

6.4 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

7.4 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

48.3%

Integer overflows were discovered in the functions grub_cmd_initrd and grub_initrd_init in the efilinux component of GRUB2, as shipped in Debian, Red Hat, and Ubuntu (the functionality is not included in GRUB2 upstream), leading to a heap-based buffer overflow. These could be triggered by an extremely large number of arguments to the initrd command on 32-bit architectures, or a crafted filesystem with very large files on any architecture. An attacker could use this to execute arbitrary code and bypass UEFI Secure Boot restrictions. This issue affects GRUB2 version 2.04 and prior versions.

Affected configurations

NVD
Node
gnugrub2Range2.04
Node
redhatenterprise_linux_atomic_hostMatch-
OR
redhatopenshift_container_platformMatch4.0
OR
redhatenterprise_linuxMatch7.0
OR
redhatenterprise_linuxMatch8.0
Node
microsoftwindows_10Match-
OR
microsoftwindows_10Match1607
OR
microsoftwindows_10Match1709
OR
microsoftwindows_10Match1803
OR
microsoftwindows_10Match1809
OR
microsoftwindows_10Match1903
OR
microsoftwindows_10Match1909
OR
microsoftwindows_10Match2004
OR
microsoftwindows_8.1Match-
OR
microsoftwindows_rt_8.1Match-
OR
microsoftwindows_server_2012Match-
OR
microsoftwindows_server_2012Matchr2
OR
microsoftwindows_server_2016Match-
OR
microsoftwindows_server_2016Match1903
OR
microsoftwindows_server_2016Match1909
OR
microsoftwindows_server_2016Match2004
OR
microsoftwindows_server_2019Match-
Node
canonicalubuntu_linuxMatch14.04esm
OR
canonicalubuntu_linuxMatch16.04esm
OR
canonicalubuntu_linuxMatch18.04lts
OR
canonicalubuntu_linuxMatch20.04lts
Node
debiandebian_linuxMatch10.0
Node
opensuseleapMatch15.1
OR
opensuseleapMatch15.2
OR
susesuse_linux_enterprise_serverMatch11
OR
susesuse_linux_enterprise_serverMatch12
OR
susesuse_linux_enterprise_serverMatch15
Node
netappactive_iq_unified_managerRange9.5vmware_vsphere

References

4.4 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:M/Au:N/C:P/I:P/A:P

6.4 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

7.4 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

48.3%