Security update for the Linux Kernel (Live Patch 0 for SLE 15 SP3) (Important)
Description:
This update for the Linux Kernel 5.3.18-57 fixes several issues.
The following security issues were fixed:
- CVE-2021-31440: Fixed a lack of proper validation of user-supplied eBPF programs prior to executing them. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the kernel. (bsc#1190127). - CVE-2021-38160: Fixed a bug that could lead to a data corruption or loss. This can be triggered by an untrusted device that supplies a buf->len value exceeding the buffer size in drivers/char/virtio_console.c (bsc#1190118) - CVE-2021-3640: Fixed a user-after-free bug in the function sco_sock_sendmsg which could lead to local privilege escalation. (bsc#1188613) - CVE-2021-3573: Fixed a user-after-free bug in the function hci_sock_bound_ioctl which could lead to local privilege escalation. (bsc#1187054).
SUSE Linux Enterprise High Performance Computing 15 SP3 SUSE Linux Enterprise Micro 5.1 SUSE Linux Enterprise Module for Basesystem 15 SP1 SUSE Linux Enterprise Module for Live Patching 15 SP3 SUSE Linux Enterprise Server 15 SP3 SUSE Linux Enterprise Server for SAP Applications 15 SP3