RedHat: RHSA-2021-2733:01 Important: kernel security update | Linux...

Advisories

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

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

Synopsis:          Important: kernel security update
Advisory ID:       RHSA-2021:2733-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:2733
Issue date:        2021-07-20
CVE Names:         CVE-2021-3347 CVE-2021-33034 CVE-2021-33909 
=====================================================================

1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 7.3
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. 7.3) - noarch, x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 7.3) - x86_64

3. Description:

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

Security Fix(es):

* kernel: size_t-to-int conversion vulnerability in the filesystem layer
(CVE-2021-33909)

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

* kernel: use-after-free in net/bluetooth/hci_event.c when destroying an
hci_chan (CVE-2021-33034)

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/):

1922249 - CVE-2021-3347 kernel: Use after free via PI futex state
1961305 - CVE-2021-33034 kernel: use-after-free in net/bluetooth/hci_event.c when destroying an hci_chan
1970273 - CVE-2021-33909 kernel: size_t-to-int conversion vulnerability in the filesystem layer

6. Package List:

Red Hat Enterprise Linux Server AUS (v. 7.3):

Source:
kernel-3.10.0-514.90.2.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-514.90.2.el7.noarch.rpm
kernel-doc-3.10.0-514.90.2.el7.noarch.rpm

x86_64:
kernel-3.10.0-514.90.2.el7.x86_64.rpm
kernel-debug-3.10.0-514.90.2.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-514.90.2.el7.x86_64.rpm
kernel-debug-devel-3.10.0-514.90.2.el7.x86_64.rpm
kernel-debuginfo-3.10.0-514.90.2.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-514.90.2.el7.x86_64.rpm
kernel-devel-3.10.0-514.90.2.el7.x86_64.rpm
kernel-headers-3.10.0-514.90.2.el7.x86_64.rpm
kernel-tools-3.10.0-514.90.2.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-514.90.2.el7.x86_64.rpm
kernel-tools-libs-3.10.0-514.90.2.el7.x86_64.rpm
perf-3.10.0-514.90.2.el7.x86_64.rpm
perf-debuginfo-3.10.0-514.90.2.el7.x86_64.rpm
python-perf-3.10.0-514.90.2.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-514.90.2.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional AUS (v. 7.3):

x86_64:
kernel-debug-debuginfo-3.10.0-514.90.2.el7.x86_64.rpm
kernel-debuginfo-3.10.0-514.90.2.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-514.90.2.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-514.90.2.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-514.90.2.el7.x86_64.rpm
perf-debuginfo-3.10.0-514.90.2.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-514.90.2.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-2021-3347
https://access.redhat.com/security/cve/CVE-2021-33034
https://access.redhat.com/security/cve/CVE-2021-33909
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/security/vulnerabilities/RHSB-2021-006

8. Contact:

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

Copyright 2021 Red Hat, Inc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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=sfft
-----END PGP SIGNATURE-----

--
RHSA-announce mailing list
[email protected]
https://listman.redhat.com/mailman/listinfo/rhsa-announce

RedHat: RHSA-2021-2733:01 Important: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 7.3 Advanced Update Support

Summary

The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: size_t-to-int conversion vulnerability in the filesystem layer (CVE-2021-33909)
* kernel: Use after free via PI futex state (CVE-2021-3347)
* kernel: use-after-free in net/bluetooth/hci_event.c when destroying an hci_chan (CVE-2021-33034)
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.

Solution

For details on how to apply this update, which includes the changesdescribed in this advisory, refer to:https://access.redhat.com/articles/11258The system must be rebooted for this update to take effect.

References

https://access.redhat.com/security/cve/CVE-2021-3347 https://access.redhat.com/security/cve/CVE-2021-33034 https://access.redhat.com/security/cve/CVE-2021-33909 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/RHSB-2021-006

Package List

Red Hat Enterprise Linux Server AUS (v. 7.3):
Source: kernel-3.10.0-514.90.2.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-514.90.2.el7.noarch.rpm kernel-doc-3.10.0-514.90.2.el7.noarch.rpm
x86_64: kernel-3.10.0-514.90.2.el7.x86_64.rpm kernel-debug-3.10.0-514.90.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-514.90.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-514.90.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-514.90.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-514.90.2.el7.x86_64.rpm kernel-devel-3.10.0-514.90.2.el7.x86_64.rpm kernel-headers-3.10.0-514.90.2.el7.x86_64.rpm kernel-tools-3.10.0-514.90.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-514.90.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-514.90.2.el7.x86_64.rpm perf-3.10.0-514.90.2.el7.x86_64.rpm perf-debuginfo-3.10.0-514.90.2.el7.x86_64.rpm python-perf-3.10.0-514.90.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-514.90.2.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 7.3):
x86_64: kernel-debug-debuginfo-3.10.0-514.90.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-514.90.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-514.90.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-514.90.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-514.90.2.el7.x86_64.rpm perf-debuginfo-3.10.0-514.90.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-514.90.2.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/

Severity
Advisory ID: RHSA-2021:2733-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:2733
Issued Date: : 2021-07-20
CVE Names: CVE-2021-3347 CVE-2021-33034 CVE-2021-33909

Topic

An update for kernel is now available for Red Hat Enterprise Linux 7.3Advanced Update Support.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.

Relevant Releases Architectures

Red Hat Enterprise Linux Server AUS (v. 7.3) - noarch, x86_64

Red Hat Enterprise Linux Server Optional AUS (v. 7.3) - x86_64

Bugs Fixed

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

1961305 - CVE-2021-33034 kernel: use-after-free in net/bluetooth/hci_event.c when destroying an hci_chan

1970273 - CVE-2021-33909 kernel: size_t-to-int conversion vulnerability in the filesystem layer

We use cookies to provide and improve our services. By using our site, you consent to our Cookie Policy.