RHSA-2021:1532 — Security Advisory
Red Hat Security Advisory: kpatch-patch security update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · May 11, 2021
Updated · July 31, 2026
Topic
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.
Description
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.