[RHSA-2022:2188-01] Important: kernel security update

Security announcements for all Red Hat products and services. rhsa-announce at redhat.com
Wed May 11 17:26:23 UTC 2022


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: kernel security update
Advisory ID:       RHSA-2022:2188-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2022:2188
Issue date:        2022-05-11
CVE Names:         CVE-2021-4028 
=====================================================================

1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 7.4
Advanced 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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Server AUS (v. 7.4) - noarch, x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 7.4) - x86_64

3. Description:

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

Security Fix(es):

* kernel: use-after-free in RDMA listen() (CVE-2021-4028)

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.

4. 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

The system must be rebooted for this update to take effect.

5. Bugs fixed (https://bugzilla.redhat.com/):

2027201 - CVE-2021-4028 kernel: use-after-free in RDMA listen()

6. Package List:

Red Hat Enterprise Linux Server AUS (v. 7.4):

Source:
kernel-3.10.0-693.100.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-693.100.1.el7.noarch.rpm
kernel-doc-3.10.0-693.100.1.el7.noarch.rpm

x86_64:
kernel-3.10.0-693.100.1.el7.x86_64.rpm
kernel-debug-3.10.0-693.100.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-693.100.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-693.100.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.100.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.100.1.el7.x86_64.rpm
kernel-devel-3.10.0-693.100.1.el7.x86_64.rpm
kernel-headers-3.10.0-693.100.1.el7.x86_64.rpm
kernel-tools-3.10.0-693.100.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.100.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-693.100.1.el7.x86_64.rpm
perf-3.10.0-693.100.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.100.1.el7.x86_64.rpm
python-perf-3.10.0-693.100.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.100.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional AUS (v. 7.4):

x86_64:
kernel-debug-debuginfo-3.10.0-693.100.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.100.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.100.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.100.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-693.100.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.100.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.100.1.el7.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2021-4028
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert at redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2022 Red Hat, Inc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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=+YMJ
-----END PGP SIGNATURE-----


More information about the RHSA-announce mailing list