RHSA-2021:0184 — Security Advisory

An update for kernel is now available for Red Hat Enterprise Linux 8.1 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: Local buffer overflow in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c (CVE-2020-25211)

• kernel: information exposure in drivers/char/random.c and kernel/time/timer.c (CVE-2020-16166)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

• RHEL8.1 - net/smc: fix silent data corruption in SMC (BZ#1882242)

• RHEL8.1 - Random memory corruption may occur due to incorrect tlbflush (BZ#1899210)

• RHEL8.3 Beta - RHEL8.3 hangs on dbginfo.sh execution, crash dump generated (mm-) (BZ#1903021)

• [Azure][RHEL8] IP forwarding issue in netvsc (BZ#1904327)