drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Zwei Probleme in kernel-rt
Name: |
Zwei Probleme in kernel-rt |
|
ID: |
RHSA-2021:2599-01 |
|
Distribution: |
Red Hat |
|
Plattformen: |
Red Hat Enterprise Linux |
|
Datum: |
Mi, 30. Juni 2021, 07:16 |
|
Referenzen: |
https://access.redhat.com/security/cve/CVE-2021-33034
https://access.redhat.com/security/cve/CVE-2020-26541 |
|
Applikationen: |
RT-Preempt-Realtime-Patch |
|
Originalnachricht |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256
===================================================================== Red Hat Security Advisory
Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2021:2599-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:2599 Issue date: 2021-06-29 CVE Names: CVE-2020-26541 CVE-2021-33034 =====================================================================
1. Summary:
An update for kernel-rt is now available for Red Hat Enterprise Linux 8.
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 Real Time (v. 8) - x86_64 Red Hat Enterprise Linux Real Time for NFV (v. 8) - x86_64
3. Description:
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.
Security Fix(es):
* kernel: use-after-free in net/bluetooth/hci_event.c when destroying an hci_chan (CVE-2021-33034)
* kernel: security bypass in certs/blacklist.c and certs/system_keyring.c (CVE-2020-26541)
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):
* kernel-rt: update RT source tree to the RHEL-8.4.z1 source tree (BZ#1965378)
* panic caused by i40e_msix_clean_rings [rhel-rt] (BZ#1965970)
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/):
1886285 - CVE-2020-26541 kernel: security bypass in certs/blacklist.c and certs/system_keyring.c 1961305 - CVE-2021-33034 kernel: use-after-free in net/bluetooth/hci_event.c when destroying an hci_chan
6. Package List:
Red Hat Enterprise Linux Real Time for NFV (v. 8):
Source: kernel-rt-4.18.0-305.7.1.rt7.79.el8_4.src.rpm
x86_64: kernel-rt-4.18.0-305.7.1.rt7.79.el8_4.x86_64.rpm kernel-rt-core-4.18.0-305.7.1.rt7.79.el8_4.x86_64.rpm kernel-rt-debug-4.18.0-305.7.1.rt7.79.el8_4.x86_64.rpm kernel-rt-debug-core-4.18.0-305.7.1.rt7.79.el8_4.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-305.7.1.rt7.79.el8_4.x86_64.rpm kernel-rt-debug-devel-4.18.0-305.7.1.rt7.79.el8_4.x86_64.rpm kernel-rt-debug-kvm-4.18.0-305.7.1.rt7.79.el8_4.x86_64.rpm kernel-rt-debug-modules-4.18.0-305.7.1.rt7.79.el8_4.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-305.7.1.rt7.79.el8_4.x86_64.rpm kernel-rt-debuginfo-4.18.0-305.7.1.rt7.79.el8_4.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-305.7.1.rt7.79.el8_4.x86_64.rpm kernel-rt-devel-4.18.0-305.7.1.rt7.79.el8_4.x86_64.rpm kernel-rt-kvm-4.18.0-305.7.1.rt7.79.el8_4.x86_64.rpm kernel-rt-modules-4.18.0-305.7.1.rt7.79.el8_4.x86_64.rpm kernel-rt-modules-extra-4.18.0-305.7.1.rt7.79.el8_4.x86_64.rpm
Red Hat Enterprise Linux Real Time (v. 8):
Source: kernel-rt-4.18.0-305.7.1.rt7.79.el8_4.src.rpm
x86_64: kernel-rt-4.18.0-305.7.1.rt7.79.el8_4.x86_64.rpm kernel-rt-core-4.18.0-305.7.1.rt7.79.el8_4.x86_64.rpm kernel-rt-debug-4.18.0-305.7.1.rt7.79.el8_4.x86_64.rpm kernel-rt-debug-core-4.18.0-305.7.1.rt7.79.el8_4.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-305.7.1.rt7.79.el8_4.x86_64.rpm kernel-rt-debug-devel-4.18.0-305.7.1.rt7.79.el8_4.x86_64.rpm kernel-rt-debug-modules-4.18.0-305.7.1.rt7.79.el8_4.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-305.7.1.rt7.79.el8_4.x86_64.rpm kernel-rt-debuginfo-4.18.0-305.7.1.rt7.79.el8_4.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-305.7.1.rt7.79.el8_4.x86_64.rpm kernel-rt-devel-4.18.0-305.7.1.rt7.79.el8_4.x86_64.rpm kernel-rt-modules-4.18.0-305.7.1.rt7.79.el8_4.x86_64.rpm kernel-rt-modules-extra-4.18.0-305.7.1.rt7.79.el8_4.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-2020-26541 https://access.redhat.com/security/cve/CVE-2021-33034 https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/
Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1
iQIVAwUBYNs6MtzjgjWX9erEAQj3Ww//dABvyoLW6MKksHOYu8yNVHDFXmfJnphL vLQHKmT1FdYCNMwNDVihUosi1fTzvsis6TNQf/bfwCOlVcNXG88HPuAE8tQ4Knde FuWRCkOvixa6spmR+YzW2cnB9WVIHRLy88t/bmtb4tzw14FIZmkE5fZ4A3E6+2A6 TtLXb0IRZ6QayO48QEmKA42SYMDmQA3KxqRRIaD9bTlpzkFEeDYlCYtwHDMFsPTG z9Z8GMCDhezj/MzgMqyKOhKac9n16SDudgMbqfBZ3y1UQwhaQ0Bim8Oa4Ev8H+dV UGP5DBLUSdDznt8Yvai4o5fs+Z7p1yk2tpEmODpbjwHPgacvivtq0fJyHu3waTrR FiXVLzLTZb12iKkZ66PvhWfm9yDBrFiCgkrcza9i/w2Eeto35A1NVeAzSbuG1wYj eOHY2KJjNV2DjVOLhUfie0EqmfZp5QZToTb3gPgS/TbkuEVipyh6YuLHO4KHAYyx /ycutMbB8oKEDXB6u5+r4c3+AWcgtUuxu94v8zJaZ8DOSBrFFfiEQq62HHaAl78w cyJufkz7DZpbz6LBM7cIX3WtBStA4j/yPSQv+IfO/pEDLFtuPQjrUajOE6F3Qjrb vVACUhKvKfI8BYlJOh5g4x9A9YvZtwymuTYo+rQuoxnLleYL+1ZTqDrKQiUuy6aB gwTAIbd4zjs= =4Aza -----END PGP SIGNATURE-----
-- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce
|
|
|
|