Detections
Analytics
CVE-2019-20908
medium
Description
An issue was discovered in drivers/firmware/efi/efi.c in the Linux kernel before 5.4. Incorrect access permissions for the efivar_ssdt ACPI variable could be used by attackers to bypass lockdown or secure boot restrictions, aka CID-1957a85b0032.
References
https://usn.ubuntu.com/4440-1/
https://usn.ubuntu.com/4439-1/
https://usn.ubuntu.com/4427-1/
https://usn.ubuntu.com/4426-1/
https://mailarchives.bentasker.co.uk/Mirrors/OSSSec/2020/06-Jun/msg00035.html
https://git.zx2c4.com/american-unsigned-language/tree/american-unsigned-language.sh
http://www.openwall.com/lists/oss-security/2020/07/30/3
http://www.openwall.com/lists/oss-security/2020/07/30/2
http://www.openwall.com/lists/oss-security/2020/07/29/3
http://www.openwall.com/lists/oss-security/2020/07/20/6
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html