HIGH
An issue was discovered in drivers/acpi/acpi_configfs.c in the Linux kernel before 5.7.7. Injection of malicious ACPI tables via configfs could be used by attackers to bypass lockdown and secure boot restrictions, aka CID-75b0cea7bf30.
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00047.html
http://www.openwall.com/lists/oss-security/2020/07/20/7
http://www.openwall.com/lists/oss-security/2020/07/29/3
http://www.openwall.com/lists/oss-security/2020/07/30/2
http://www.openwall.com/lists/oss-security/2020/07/30/3
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.7
https://git.zx2c4.com/american-unsigned-language/tree/american-unsigned-language-2.sh
https://usn.ubuntu.com/4425-1/
https://usn.ubuntu.com/4426-1/
https://usn.ubuntu.com/4439-1/
Source: MITRE
Published: 2020-07-15
Updated: 2020-08-21
Type: CWE-863
Base Score: 7.2
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C
Impact Score: 10
Exploitability Score: 3.9
Severity: HIGH
Base Score: 6.7
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 0.8
Severity: MEDIUM