ALSA-2021:2570 Important: kernel security and bug fix update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: use-after-free in net/bluetooth/hcievent.c when destroying an hcichan CVE-2021-33034 kernel: security bypass in certs/blacklist.c and certs/systemkeyring.c CVE-2020-26541 For more details...

CVE-2020-26541

A flaw was found in the Linux kernel in certs/blacklist.c, When signature entries for EFICERTX509GUID are contained in the Secure Boot Forbidden Signature Database, the entries are skipped. This can cause a security threat and breach system integrity, confidentiality and even lead to a denial of...

CVE-2020-26541

CVE-2020-26541 : Local attacker can bypass the Secure Boot Forbidden Signature Database (dbx) protection in Linux kernels up to 5.8.13, affecting certs/blacklist.c and certs/system_keyring.c. Impact involves potential system integrity/confidentiality compromise. Connected sources confirm the issu...