Wednesday, October 13, 2021

Red Hat Security Advisory 2021-3767-02

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

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

Synopsis: Important: kernel security update
Advisory ID: RHSA-2021:3767-02
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:3767
Issue date: 2021-09-24
Updated on: 2021-10-12
CVE Names: CVE-2021-3653 CVE-2021-22543
====================================================================
1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 7.2
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. 7.2) - noarch, x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 7.2) - x86_64

3. Description:

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

Security Fix(es):

* kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO
checks (CVE-2021-22543)

* kernel: SVM nested virtualization issue in KVM (AVIC support)
(CVE-2021-3653)

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/):

1965461 - CVE-2021-22543 kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks
1983686 - CVE-2021-3653 kernel: SVM nested virtualization issue in KVM (AVIC support)

6. Package List:

Red Hat Enterprise Linux Server AUS (v. 7.2):

Source:
kernel-3.10.0-327.101.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-327.101.1.el7.noarch.rpm
kernel-doc-3.10.0-327.101.1.el7.noarch.rpm

x86_64:
kernel-3.10.0-327.101.1.el7.x86_64.rpm
kernel-debug-3.10.0-327.101.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-327.101.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-327.101.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.101.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.101.1.el7.x86_64.rpm
kernel-devel-3.10.0-327.101.1.el7.x86_64.rpm
kernel-headers-3.10.0-327.101.1.el7.x86_64.rpm
kernel-tools-3.10.0-327.101.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.101.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-327.101.1.el7.x86_64.rpm
perf-3.10.0-327.101.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.101.1.el7.x86_64.rpm
python-perf-3.10.0-327.101.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.101.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional AUS (v. 7.2):

x86_64:
kernel-debug-debuginfo-3.10.0-327.101.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.101.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.101.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.101.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-327.101.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.101.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.101.1.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-2021-3653
https://access.redhat.com/security/cve/CVE-2021-22543
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <[email protected]>. More contact
details at https://access.redhat.com/security/team/contact/

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

iQIVAwUBYWVOVtzjgjWX9erEAQjONBAAnfzr1Vls0xtLeZFAGG2hOHsqpStdxijU
dJwapHxnnx2e6fwdVjJH4JNmA5OT8RKWTiDUZQTZw2b9BoEy8gTog0IcF/pOMxmn
8IL9EA8syCpj+133FM1NZ92YouoFyl3xVVI5ZDPRblYM7/zyYYCg2WC0VOMrxuNe
8JSQguaKeN4DtH3K63/myrA+iVp4jMactEigsDasDp0pyqvl85O4nt5LksX4YxnZ
5YI7p0QRNfli7Gown/NqIv5v4C4YOEUefRdwSsuYgxvi1+X3k2I7ZSEr4gEIhMCl
lQiijcEwglT+2T89cEz0Y/4EvyY1rbO3FPiRX/IA8VpKmk9RtuIy+CLcK3jlKDIK
sL+0f88bSyWACHigoCFOeWMFv5t1kVgRTcfJDXjyedNjuzzQ+ZstbIW11zSkXFY9
qZyZPePUAxHtYB7zS8MIWfmuvJkzIG8vCXYqpWYfg0z0IRgrPEhbsEaZZfMaJAz+
qNXUzAeDUt0gc4IR9duR2h8ML9CVTbxtgw19wA8+uqUWoFRNAEj1DDvkVhTN3Sqb
5E3HNqW68fD0JcUNmJgcJBn4WcWA7rulfy2ZZXAIw84TNJ5VDh1cp8f9mEekuols
MCl0O5hsWZhXe30Zb92W9O2Tj6GfwEplr6eAcdDL/HGJThNHQVbVlu2GOsxhFGtB
ftG+hLpOrus=tfXY
-----END PGP SIGNATURE-----

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

Copyright © 2021 Vulnerability Database | Cyber Details™

thank you Templateism for the design - You should have written the code a little more complicated - Nothing Encrypted anymore