Explore top 10 tips to secure your open-source projects now. Read More

×
Alerts This Week
Warning Icon 1 556
Alerts This Week
Warning Icon 1 556

Red Hat Enterprise Linux 8.2: RHSA-2021-1295-01 Important Kernel Fix

red hat
Calendar Grey April 20, 2021
Dist Redhat Esm H88
Red Hat has announced a significant security patch for kpatch-patch. Find inside the specifics about the vulnerabilities addressed and the corrective measures implemented.
An update is now available for Red Hat Enterprise Linux 8.2 Extended Update Support

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Summary

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: Use after free via PI futex state (CVE-2021-3347)
* 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.

Topics%20covered

Topics Covered

security advisory security fix kernel patch Red Hat Enterprise Linux Important kpatch live patch module

References

https://access.redhat.com/security/cve/CVE-2021-3347 https://access.redhat.com/security/cve/CVE-2021-27364 https://access.redhat.com/security/cve/CVE-2021-27365 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux BaseOS EUS (v. 8.2):
Source: kpatch-patch-4_18_0-193-1-13.el8.src.rpm kpatch-patch-4_18_0-193_13_2-1-8.el8_2.src.rpm kpatch-patch-4_18_0-193_14_3-1-8.el8_2.src.rpm kpatch-patch-4_18_0-193_19_1-1-8.el8_2.src.rpm kpatch-patch-4_18_0-193_1_2-1-11.el8_2.src.rpm kpatch-patch-4_18_0-193_28_1-1-6.el8_2.src.rpm kpatch-patch-4_18_0-193_29_1-1-6.el8_2.src.rpm kpatch-patch-4_18_0-193_37_1-1-6.el8_2.src.rpm kpatch-patch-4_18_0-193_40_1-1-6.el8_2.src.rpm kpatch-patch-4_18_0-193_41_1-1-6.el8_2.src.rpm kpatch-patch-4_18_0-193_46_1-1-3.el8_2.src.rpm kpatch-patch-4_18_0-193_47_1-1-3.el8_2.src.rpm kpatch-patch-4_18_0-193_6_3-1-10.el8_2.src.rpm
ppc64le: kpatch-patch-4_18_0-193-1-13.el8.ppc64le.rpm kpatch-patch-4_18_0-193-debuginfo-1-13.el8.ppc64le.rpm kpatch-patch-4_18_0-193-debugsource-1-13.el8.ppc64le.rpm kpatch-patch-4_18_0-193_13_2-1-8.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_13_2-debuginfo-1-8.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_13_2-debugsource-1-8.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_14_3-1-8.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_14_3-debuginfo-1-8.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_14_3-debugsource-1-8.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_19_1-1-8.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_19_1-debuginfo-1-8.el8_2.ppc64le.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:1295-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:1295
Issue date: 2021-04-20

Topic

An update is now available for Red Hat Enterprise Linux 8.2 Extended UpdateSupport.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory security fix kernel patch Red Hat Enterprise Linux Important kpatch live patch module

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS EUS (v. 8.2) - ppc64le, x86_64

Bugs Fixed

1922249 - CVE-2021-3347 kernel: Use after free via PI futex state

1930078 - CVE-2021-27365 kernel: heap buffer overflow in the iSCSI subsystem

1930080 - CVE-2021-27364 kernel: out-of-bounds read in libiscsi module

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.