Alerts This Week
Warning Icon 1 692
Alerts This Week
Warning Icon 1 692

Red Hat: RHSA-2022:7319-01 Important: kernel-rt Local Privilege Escalation

red hat
Calendar Grey November 2, 2022
Dist Redhat Esm H88
Ubuntu 22.04 LTS has been updated with kernel patches addressing critical vulnerabilities, including potential remote code execution risks and stability improvements.
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):
* posix cpu timer use-after-free may lead to local privilege escalation (CVE-2022-2585)
* 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):
* Update RT source tree to the latest RHEL-9.0.z4 Batch (BZ#2123498)

Topics%20covered

Topics Covered

security advisory local privilege escalation bug fix important Red Hat Enterprise kernel-rt real time kernel

References

https://access.redhat.com/security/cve/CVE-2022-2585 https://access.redhat.com/security/cve/CVE-2022-30594 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux Real Time for NFV (v. 9):
Source: kernel-rt-5.14.0-70.30.1.rt21.102.el9_0.src.rpm
x86_64: kernel-rt-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-core-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-debug-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-debug-core-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-debug-debuginfo-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-debug-devel-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-debug-kvm-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-debug-modules-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-debug-modules-extra-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-debuginfo-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-debuginfo-common-x86_64-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-devel-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-kvm-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-modules-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-modules-extra-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm
Red Hat Enterprise Linux Real Time (v. 9):
Source: kernel-rt-5.14.0-70.30.1.rt21.102.el9_0.src.rpm
x86_64: kernel-rt-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm kernel-rt-core-5.14.0-70.30.1.rt21.102.el9_0.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:7319-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:7319
Issue date: 2022-11-02

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 local privilege escalation bug fix important Red Hat Enterprise kernel-rt real time kernel

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

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

2114874 - CVE-2022-2585 kernel: posix cpu timer use-after-free may lead to local privilege escalation

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here