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AUSCERT External Security Bulletin Redistribution
ESB-2024.2404
kernel-rt security and bug fix update
19 April 2024
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AusCERT Security Bulletin Summary
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Product: kernel-rt
Publisher: Red Hat
Operating System: Red Hat
Resolution: Patch/Upgrade
CVE Names: CVE-2024-26582 CVE-2024-26584 CVE-2024-26586
CVE-2023-6240
Original Bulletin:
https://access.redhat.com/errata/RHSA-2024:1882
Comment: CVSS (Max): 6.7 CVE-2024-26586 (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
CVSS Source: Red Hat
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
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Red Hat Security Advisory
Synopsis: Important: kernel-rt security and bug fix update
Advisory ID: RHSA-2024:1882
Product: Red Hat Enterprise Linux Real Time EUS (v.9.2)
Advisory URL: https://access.redhat.com/errata/RHSA-2024:1882
Issue date: 2024-04-18
CVE Names: CVE-2023-6240 CVE-2024-26582 CVE-2024-26584 CVE-2024-26586
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1. Summary:
An update for kernel-rt is now available for Red Hat Enterprise Linux 9.2
Extended 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 Real Time EUS (v.9.2) - x86_64
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) - 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: Marvin vulnerability side-channel leakage in the RSA decryption
operation (CVE-2023-6240)
* kernel: tls: use-after-free with partial reads and async decrypt
(CVE-2024-26582)
* kernel: tls: handle backlogging of crypto requests (CVE-2024-26584)
* kernel: mlxsw: spectrum_acl_tcam: Fix stack corruption (CVE-2024-26586)
Bug Fix(es):
* kernel-rt: kernel: mlxsw: spectrum_acl_tcam: Fix stack corruption
(JIRA:RHEL-29214)
* kernel-rt: update RT source tree to the latest RHEL-9.2 ad hoc schedule build
(JIRA:RHEL-30439)
* kernel-rt: kernel: tls: use-after-free with partial reads and async decrypt
(JIRA:RHEL-26399)
* kernel-rt: kernel: Marvin vulnerability side-channel leakage in the RSA
decryption operation (JIRA:RHEL-29687)
* kernel-rt: kernel: tls: handle backlogging of crypto requests
(JIRA:RHEL-30451)
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/):
2250843 - CVE-2023-6240 - kernel: Marvin vulnerability side-channel leakage in
the RSA decryption operation
2265518 - CVE-2024-26582 - kernel: tls: use-after-free with partial reads and
async decrypt
2265519 - CVE-2024-26584 - kernel: tls: handle backlogging of crypto requests
2265645 - CVE-2024-26586 - kernel: mlxsw: spectrum_acl_tcam: Fix stack
corruption
6. Package List:
Red Hat Enterprise Linux Real Time EUS (v.9.2)
Source:
kernel-rt-0:5.14.0-284.62.1.rt14.347.el9_2.src.rpm
x86_64:
kernel-rt-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-core-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-debug-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-debug-core-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-debug-debuginfo-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-debug-devel-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-debug-kvm-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-debug-modules-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-debug-modules-core-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-debug-modules-extra-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-debuginfo-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-devel-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-kvm-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-modules-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-modules-core-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-modules-extra-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2)
Source:
kernel-rt-0:5.14.0-284.62.1.rt14.347.el9_2.src.rpm
x86_64:
kernel-rt-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-core-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-debug-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-debug-core-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-debug-debuginfo-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-debug-devel-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-debug-kvm-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-debug-modules-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-debug-modules-core-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-debug-modules-extra-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-debuginfo-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-devel-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-kvm-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-modules-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-modules-core-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
kernel-rt-modules-extra-0:5.14.0-284.62.1.rt14.347.el9_2.x86_64.rpm
7. References:
https://access.redhat.com/security/cve/CVE-2023-6240
https://access.redhat.com/security/cve/CVE-2024-26582
https://access.redhat.com/security/cve/CVE-2024-26584
https://access.redhat.com/security/cve/CVE-2024-26586
https://access.redhat.com/security/updates/classification/#important
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