RHSA-2021:1289: Important: kernel security and bug fix update

Published Apr 20, 2021
·
Updated

The kernel packages contain the Linux kernel, the core of any Linux operating system.Security Fix(es): kernel: out-of-bounds read in libiscsi module (CVE-2021-27364) kernel: heap buffer overflow in the iSCSI subsystem (CVE-2021-27365) kernel: iscsi: unrestricted access to sessions and handles (CVE-2021-27363) 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): Enable CI and changelog for GitLab workflow (BZ#1930934)

Affected Software

18 affected componentsFixes available
redhat/kernel<3.10.0-327.96.1.el7
3.10.0-327.96.1.el7
redhat/kernel<3.10.0-327.96.1.el7
3.10.0-327.96.1.el7
redhat/kernel-abi-whitelists<3.10.0-327.96.1.el7
3.10.0-327.96.1.el7
redhat/kernel-debug<3.10.0-327.96.1.el7
3.10.0-327.96.1.el7
redhat/kernel-debug-debuginfo<3.10.0-327.96.1.el7
3.10.0-327.96.1.el7
redhat/kernel-debug-devel<3.10.0-327.96.1.el7
3.10.0-327.96.1.el7
redhat/kernel-debuginfo<3.10.0-327.96.1.el7
3.10.0-327.96.1.el7
redhat/kernel-devel<3.10.0-327.96.1.el7
3.10.0-327.96.1.el7
redhat/kernel-doc<3.10.0-327.96.1.el7
3.10.0-327.96.1.el7
redhat/kernel-headers<3.10.0-327.96.1.el7
3.10.0-327.96.1.el7
redhat/kernel-tools<3.10.0-327.96.1.el7
3.10.0-327.96.1.el7
redhat/kernel-tools-debuginfo<3.10.0-327.96.1.el7
3.10.0-327.96.1.el7
redhat/kernel-tools-libs<3.10.0-327.96.1.el7
3.10.0-327.96.1.el7
redhat/kernel-tools-libs-devel<3.10.0-327.96.1.el7
3.10.0-327.96.1.el7
redhat/perf<3.10.0-327.96.1.el7
3.10.0-327.96.1.el7
redhat/perf-debuginfo<3.10.0-327.96.1.el7
3.10.0-327.96.1.el7
redhat/python-perf<3.10.0-327.96.1.el7
3.10.0-327.96.1.el7
redhat/python-perf-debuginfo<3.10.0-327.96.1.el7
3.10.0-327.96.1.el7

Remediation

Event History

May 25, 2026
Advisory Published
via Red Hat·03:19 PM
Data Sourced
via Red Hat·03:19 PM
RemedyDescriptionAffected Software
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of RHSA-2021:1289?

The severity of RHSA-2021:1289 is critical due to multiple vulnerabilities in the Linux kernel.

2

How do I fix RHSA-2021:1289?

To fix RHSA-2021:1289, you should upgrade to the kernel package version 3.10.0-327.96.1.el7 or later.

3

What vulnerabilities are addressed in RHSA-2021:1289?

RHSA-2021:1289 addresses an out-of-bounds read and a heap buffer overflow in the iSCSI subsystem.

4

Which systems are affected by RHSA-2021:1289?

RHSA-2021:1289 affects systems running the kernel version 3.10.0-327.96.1.el7 or earlier.

5

What components are impacted by the vulnerabilities in RHSA-2021:1289?

The vulnerabilities in RHSA-2021:1289 impact the core Linux kernel and its associated components such as the iSCSI module.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203