RHSA-2021:1532: Red Hat Security Advisory: kpatch-patch security update

An update is now available for Red Hat Enterprise Linux 7.7 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.This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Security Fix(es):

• kernel: SCSI target (LIO) write to any block on ILO backstore (CVE-2020-28374)
• kernel: out-of-bounds read in libiscsi module (CVE-2021-27364)
• kernel: heap buffer overflow in the iSCSI subsystem (CVE-2021-27365) 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. Related CVEs:
• CVE-2020-28374: kernel: SCSI target (LIO) write to any block on ILO backstore
• CVE-2021-27364: kernel: out-of-bounds read in libiscsi module
• CVE-2021-27365: kernel: heap buffer overflow in the iSCSI subsystem