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[RHSA-2023:1584] kernel-rt security and bug fix update

Severity Important
Affected Packages 12
CVEs 4
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: stack overflow in do_proc_dointvec and proc_skip_spaces (CVE-2022-4378)

  • ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF (CVE-2023-0266)

  • kernel: FUSE filesystem low-privileged user privileges escalation (CVE-2023-0386)

  • kernel: net: CPU soft lockup in TC mirred egress-to-ingress action (CVE-2022-4269)

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):

  • Lazy irq_work does not raise softirq on PREEMPT_RT rhel-8

  • The latest RHEL 8.7.z3 kernel changes need to be merged into the RT source tree to keep source parity between the two kernels. (BZ#2172278)

Package Affected Version
pkg:rpm/redhat/kernel-rt?arch=x86_64&distro=redhat-8.7 < 4.18.0-425.19.2.rt7.230.el8_7
pkg:rpm/redhat/kernel-rt-modules?arch=x86_64&distro=redhat-8.7 < 4.18.0-425.19.2.rt7.230.el8_7
pkg:rpm/redhat/kernel-rt-modules-extra?arch=x86_64&distro=redhat-8.7 < 4.18.0-425.19.2.rt7.230.el8_7
pkg:rpm/redhat/kernel-rt-kvm?arch=x86_64&distro=redhat-8.7 < 4.18.0-425.19.2.rt7.230.el8_7
pkg:rpm/redhat/kernel-rt-devel?arch=x86_64&distro=redhat-8.7 < 4.18.0-425.19.2.rt7.230.el8_7
pkg:rpm/redhat/kernel-rt-debug?arch=x86_64&distro=redhat-8.7 < 4.18.0-425.19.2.rt7.230.el8_7
pkg:rpm/redhat/kernel-rt-debug-modules?arch=x86_64&distro=redhat-8.7 < 4.18.0-425.19.2.rt7.230.el8_7
pkg:rpm/redhat/kernel-rt-debug-modules-extra?arch=x86_64&distro=redhat-8.7 < 4.18.0-425.19.2.rt7.230.el8_7
pkg:rpm/redhat/kernel-rt-debug-kvm?arch=x86_64&distro=redhat-8.7 < 4.18.0-425.19.2.rt7.230.el8_7
pkg:rpm/redhat/kernel-rt-debug-devel?arch=x86_64&distro=redhat-8.7 < 4.18.0-425.19.2.rt7.230.el8_7
pkg:rpm/redhat/kernel-rt-debug-core?arch=x86_64&distro=redhat-8.7 < 4.18.0-425.19.2.rt7.230.el8_7
pkg:rpm/redhat/kernel-rt-core?arch=x86_64&distro=redhat-8.7 < 4.18.0-425.19.2.rt7.230.el8_7
ID
RHSA-2023:1584
Severity
important
URL
https://access.redhat.com/errata/RHSA-2023:1584
Published
2023-04-04T00:00:00
(17 months ago)
Modified
2023-04-04T00:00:00
(17 months ago)
Rights
Copyright 2023 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-8.7 redhat kernel-rt < 4.18.0-425.19.2.rt7.230.el8_7 redhat-8.7 x86_64
Affected pkg:rpm/redhat/kernel-rt-modules?arch=x86_64&distro=redhat-8.7 redhat kernel-rt-modules < 4.18.0-425.19.2.rt7.230.el8_7 redhat-8.7 x86_64
Affected pkg:rpm/redhat/kernel-rt-modules-extra?arch=x86_64&distro=redhat-8.7 redhat kernel-rt-modules-extra < 4.18.0-425.19.2.rt7.230.el8_7 redhat-8.7 x86_64
Affected pkg:rpm/redhat/kernel-rt-kvm?arch=x86_64&distro=redhat-8.7 redhat kernel-rt-kvm < 4.18.0-425.19.2.rt7.230.el8_7 redhat-8.7 x86_64
Affected pkg:rpm/redhat/kernel-rt-devel?arch=x86_64&distro=redhat-8.7 redhat kernel-rt-devel < 4.18.0-425.19.2.rt7.230.el8_7 redhat-8.7 x86_64
Affected pkg:rpm/redhat/kernel-rt-debug?arch=x86_64&distro=redhat-8.7 redhat kernel-rt-debug < 4.18.0-425.19.2.rt7.230.el8_7 redhat-8.7 x86_64
Affected pkg:rpm/redhat/kernel-rt-debug-modules?arch=x86_64&distro=redhat-8.7 redhat kernel-rt-debug-modules < 4.18.0-425.19.2.rt7.230.el8_7 redhat-8.7 x86_64
Affected pkg:rpm/redhat/kernel-rt-debug-modules-extra?arch=x86_64&distro=redhat-8.7 redhat kernel-rt-debug-modules-extra < 4.18.0-425.19.2.rt7.230.el8_7 redhat-8.7 x86_64
Affected pkg:rpm/redhat/kernel-rt-debug-kvm?arch=x86_64&distro=redhat-8.7 redhat kernel-rt-debug-kvm < 4.18.0-425.19.2.rt7.230.el8_7 redhat-8.7 x86_64
Affected pkg:rpm/redhat/kernel-rt-debug-devel?arch=x86_64&distro=redhat-8.7 redhat kernel-rt-debug-devel < 4.18.0-425.19.2.rt7.230.el8_7 redhat-8.7 x86_64
Affected pkg:rpm/redhat/kernel-rt-debug-core?arch=x86_64&distro=redhat-8.7 redhat kernel-rt-debug-core < 4.18.0-425.19.2.rt7.230.el8_7 redhat-8.7 x86_64
Affected pkg:rpm/redhat/kernel-rt-core?arch=x86_64&distro=redhat-8.7 redhat kernel-rt-core < 4.18.0-425.19.2.rt7.230.el8_7 redhat-8.7 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