1. Home
  2. Security Advisories
  3. Red Hat
  4. RHSA-2021:2599

[RHSA-2021:2599] kernel-rt security and bug fix update

Severity Important
Affected Packages 12
CVEs 2
Info Packages References Vulnerabilities

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

Package Affected Version
pkg:rpm/redhat/kernel-rt?arch=x86_64&distro=redhat-8.4 < 4.18.0-305.7.1.rt7.79.el8_4
pkg:rpm/redhat/kernel-rt-modules?arch=x86_64&distro=redhat-8.4 < 4.18.0-305.7.1.rt7.79.el8_4
pkg:rpm/redhat/kernel-rt-modules-extra?arch=x86_64&distro=redhat-8.4 < 4.18.0-305.7.1.rt7.79.el8_4
pkg:rpm/redhat/kernel-rt-kvm?arch=x86_64&distro=redhat-8.4 < 4.18.0-305.7.1.rt7.79.el8_4
pkg:rpm/redhat/kernel-rt-devel?arch=x86_64&distro=redhat-8.4 < 4.18.0-305.7.1.rt7.79.el8_4
pkg:rpm/redhat/kernel-rt-debug?arch=x86_64&distro=redhat-8.4 < 4.18.0-305.7.1.rt7.79.el8_4
pkg:rpm/redhat/kernel-rt-debug-modules?arch=x86_64&distro=redhat-8.4 < 4.18.0-305.7.1.rt7.79.el8_4
pkg:rpm/redhat/kernel-rt-debug-modules-extra?arch=x86_64&distro=redhat-8.4 < 4.18.0-305.7.1.rt7.79.el8_4
pkg:rpm/redhat/kernel-rt-debug-kvm?arch=x86_64&distro=redhat-8.4 < 4.18.0-305.7.1.rt7.79.el8_4
pkg:rpm/redhat/kernel-rt-debug-devel?arch=x86_64&distro=redhat-8.4 < 4.18.0-305.7.1.rt7.79.el8_4
pkg:rpm/redhat/kernel-rt-debug-core?arch=x86_64&distro=redhat-8.4 < 4.18.0-305.7.1.rt7.79.el8_4
pkg:rpm/redhat/kernel-rt-core?arch=x86_64&distro=redhat-8.4 < 4.18.0-305.7.1.rt7.79.el8_4
ID
RHSA-2021:2599
Severity
important
URL
https://access.redhat.com/errata/RHSA-2021:2599
Published
2021-06-29T00:00:00
(3 years ago)
Modified
2021-06-29T00:00:00
(3 years ago)
Rights
Copyright 2021 Red Hat, Inc.
Other Advisories
Type Package URL Namespace Name / Product Version Distribution / Platform Arch Patch / Fix
Affected pkg:rpm/redhat/kernel-rt?arch=x86_64&distro=redhat-8.4 redhat kernel-rt < 4.18.0-305.7.1.rt7.79.el8_4 redhat-8.4 x86_64
Affected pkg:rpm/redhat/kernel-rt-modules?arch=x86_64&distro=redhat-8.4 redhat kernel-rt-modules < 4.18.0-305.7.1.rt7.79.el8_4 redhat-8.4 x86_64
Affected pkg:rpm/redhat/kernel-rt-modules-extra?arch=x86_64&distro=redhat-8.4 redhat kernel-rt-modules-extra < 4.18.0-305.7.1.rt7.79.el8_4 redhat-8.4 x86_64
Affected pkg:rpm/redhat/kernel-rt-kvm?arch=x86_64&distro=redhat-8.4 redhat kernel-rt-kvm < 4.18.0-305.7.1.rt7.79.el8_4 redhat-8.4 x86_64
Affected pkg:rpm/redhat/kernel-rt-devel?arch=x86_64&distro=redhat-8.4 redhat kernel-rt-devel < 4.18.0-305.7.1.rt7.79.el8_4 redhat-8.4 x86_64
Affected pkg:rpm/redhat/kernel-rt-debug?arch=x86_64&distro=redhat-8.4 redhat kernel-rt-debug < 4.18.0-305.7.1.rt7.79.el8_4 redhat-8.4 x86_64
Affected pkg:rpm/redhat/kernel-rt-debug-modules?arch=x86_64&distro=redhat-8.4 redhat kernel-rt-debug-modules < 4.18.0-305.7.1.rt7.79.el8_4 redhat-8.4 x86_64
Affected pkg:rpm/redhat/kernel-rt-debug-modules-extra?arch=x86_64&distro=redhat-8.4 redhat kernel-rt-debug-modules-extra < 4.18.0-305.7.1.rt7.79.el8_4 redhat-8.4 x86_64
Affected pkg:rpm/redhat/kernel-rt-debug-kvm?arch=x86_64&distro=redhat-8.4 redhat kernel-rt-debug-kvm < 4.18.0-305.7.1.rt7.79.el8_4 redhat-8.4 x86_64
Affected pkg:rpm/redhat/kernel-rt-debug-devel?arch=x86_64&distro=redhat-8.4 redhat kernel-rt-debug-devel < 4.18.0-305.7.1.rt7.79.el8_4 redhat-8.4 x86_64
Affected pkg:rpm/redhat/kernel-rt-debug-core?arch=x86_64&distro=redhat-8.4 redhat kernel-rt-debug-core < 4.18.0-305.7.1.rt7.79.el8_4 redhat-8.4 x86_64
Affected pkg:rpm/redhat/kernel-rt-core?arch=x86_64&distro=redhat-8.4 redhat kernel-rt-core < 4.18.0-305.7.1.rt7.79.el8_4 redhat-8.4 x86_64
# CVE Description CVSS EPSS EPSS Trend (30 days) Affected Products Weaknesses Security Advisories Exploits PoC Pubblication Date Modification Date
# CVE Description CVSS EPSS EPSS Trend (30 days) Affected Products Weaknesses Security Advisories PoC Pubblication Date Modification Date