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RedHat: RHSA-2023-0300-01 Important: Kernel-RT Security Issues

red hat
Calendar Grey January 23, 2023
Dist Redhat Esm H88
Red Hat unveils a vital update for kernel-rt in RHEL 9, tackling pressing security vulnerabilities and various bug resolutions.
An update for kernel-rt is now available for Red Hat Enterprise Linux 9

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.

Summary

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: watch queue race condition can lead to privilege escalation (CVE-2022-2959)
* kernel: memory corruption in AX88179_178A based USB ethernet device. (CVE-2022-2964)
* kernel: i915: Incorrect GPU TLB flush can lead to random memory access (CVE-2022-4139)
* kernel: nfsd buffer overflow by RPC message over TCP with garbage data (CVE-2022-43945)
* kernel: i2c: unbounded length leads to buffer overflow in ismt_access() (CVE-2022-3077)
* kernel: Unprivileged users may use PTRACE_SEIZE to set PTRACE_O_SUSPEND_SECCOMP option (CVE-2022-30594)
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):
* DELL EMC: System is not booting into RT Kernel with perc12 [kernel-rt] (BZ#2139863)
* kernel-rt: update RT source tree to the latest RHEL-9.1.z1 Batch (BZ#2141817)

Topics%20covered

Topics Covered

security advisory buffer overflow privilege escalation security fix Red Hat Enterprise important update kernel-rt

References

https://access.redhat.com/security/cve/CVE-2022-2959 https://access.redhat.com/security/cve/CVE-2022-2964 https://access.redhat.com/security/cve/CVE-2022-3077 https://access.redhat.com/security/cve/CVE-2022-4139 https://access.redhat.com/security/cve/CVE-2022-30594 https://access.redhat.com/security/cve/CVE-2022-43945 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Real Time for NFV (v. 9):
Source: kernel-rt-5.14.0-162.12.1.rt21.175.el9_1.src.rpm
x86_64: kernel-rt-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm kernel-rt-core-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm kernel-rt-debug-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm kernel-rt-debug-core-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm kernel-rt-debug-debuginfo-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm kernel-rt-debug-devel-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm kernel-rt-debug-kvm-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm kernel-rt-debug-modules-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm kernel-rt-debug-modules-extra-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm kernel-rt-debuginfo-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm kernel-rt-debuginfo-common-x86_64-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm kernel-rt-devel-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm kernel-rt-kvm-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm kernel-rt-modules-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm kernel-rt-modules-extra-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm
Red Hat Enterprise Linux Real Time (v. 9):
Source: kernel-rt-5.14.0-162.12.1.rt21.175.el9_1.src.rpm
x86_64: kernel-rt-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm kernel-rt-core-5.14.0-162.12.1.rt21.175.el9_1.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:0300-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:0300
Issue date: 2023-01-23

Topic

An update for kernel-rt is now available for Red Hat Enterprise Linux 9.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory buffer overflow privilege escalation security fix Red Hat Enterprise important update kernel-rt

Relevant Releases Architectures

Red Hat Enterprise Linux Real Time (v. 9) - x86_64

Red Hat Enterprise Linux Real Time for NFV (v. 9) - x86_64

Bugs Fixed

2067482 - CVE-2022-2964 kernel: memory corruption in AX88179_178A based USB ethernet device.

2085300 - CVE-2022-30594 kernel: Unprivileged users may use PTRACE_SEIZE to set PTRACE_O_SUSPEND_SECCOMP option

2103681 - CVE-2022-2959 kernel: watch queue race condition can lead to privilege escalation

2123309 - CVE-2022-3077 kernel: i2c: unbounded length leads to buffer overflow in ismt_access()

2141752 - CVE-2022-43945 kernel: nfsd buffer overflow by RPC message over TCP with garbage data

2147572 - CVE-2022-4139 kernel: i915: Incorrect GPU TLB flush can lead to random memory access

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