SUSE SLES15 Security Update : kernel (Live Patch 0 for SLE 15 SP3) (SUSE-SU-2021:2198-1)

The remote SUSE Linux SLES15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:2198-1 advisory. This update for the Linux Kernel 5.3.18-57 fixes several issues. The following issues were fixed: - CVE-2021-3489: Fixed an issue where the eBP...

CVE-2021-3489: Improper Restriction of Operations within the Bounds of a Memory Buffer

The eBPF RINGBUF bpfringbufreserve function in the Linux kernel did not check that the allocated size was smaller than the ringbuf size, allowing an attacker to perform out-of-bounds writes within the kernel and therefore, arbitrary code execution. This issue was fixed via commit 4b81ccebaeee "bp...