Sicherheit: Mehrere Probleme in Linux
————–0mP580qI1ryU06aB7D9pf26p
Content-Type: multipart/mixed;
boundary=”————x1w32P807jd5F0Jd8Evf9xgE”;
protected-headers=”v1″
From: Rodrigo Figueiredo Zaiden <[email protected]>
Reply-To: [email protected]
To: [email protected]
Message-ID: <[email protected]>
Subject: [USN-7864-1] Linux kernel (GCP and GKE) vulnerabilities
————–x1w32P807jd5F0Jd8Evf9xgE
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: base64
==========================================================================
Ubuntu Security Notice USN-7864-1
November 07, 2025
linux-gcp, linux-gcp-6.8, linux-gke vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 24.04 LTS
– Ubuntu 22.04 LTS
Summary:
Several security issues were fixed in the Linux kernel.
Software Description:
– linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems
– linux-gke: Linux kernel for Google Container Engine (GKE) systems
– linux-gcp-6.8: Linux kernel for Google Cloud Platform (GCP) systems
Details:
Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered
that the Linux kernel contained insufficient branch predictor isolation
between a guest and a userspace hypervisor for certain processors. This
flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this
to expose sensitive information from the host OS. (CVE-2025-40300)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
– HSI subsystem;
– I2C subsystem;
– Bluetooth subsystem;
– Timer subsystem;
(CVE-2025-37838, CVE-2025-38118, CVE-2025-38352, CVE-2025-38425)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 24.04 LTS
linux-image-6.8.0-1039-gke 6.8.0-1039.44
linux-image-6.8.0-1039-gke-64k 6.8.0-1039.44
linux-image-6.8.0-1043-gcp 6.8.0-1043.46
linux-image-6.8.0-1043-gcp-64k 6.8.0-1043.46
linux-image-gcp-6.8 6.8.0-1043.46
linux-image-gcp-64k-6.8 6.8.0-1043.46
linux-image-gcp-64k-lts-24.04 6.8.0-1043.46
linux-image-gcp-lts-24.04 6.8.0-1043.46
linux-image-gke 6.8.0-1039.44
linux-image-gke-6.8 6.8.0-1039.44
linux-image-gke-64k 6.8.0-1039.44
linux-image-gke-64k-6.8 6.8.0-1039.44
Ubuntu 22.04 LTS
linux-image-6.8.0-1043-gcp 6.8.0-1043.46~22.04.1
linux-image-6.8.0-1043-gcp-64k 6.8.0-1043.46~22.04.1
linux-image-gcp 6.8.0-1043.46~22.04.1
linux-image-gcp-6.8 6.8.0-1043.46~22.04.1
linux-image-gcp-64k 6.8.0-1043.46~22.04.1
linux-image-gcp-64k-6.8 6.8.0-1043.46~22.04.1
After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.
References:
ubuntu.com/security/notices/USN-7864-1
CVE-2025-37838, CVE-2025-38118, CVE-2025-38352, CVE-2025-38425,
CVE-2025-40300
Package Information:
launchpad.net/ubuntu/+source/linux-gcp/6.8.0-1043.46
launchpad.net/ubuntu/+source/linux-gke/6.8.0-1039.44
launchpad.net/ubuntu/+source/linux-gcp-6.8/6.8.0-1043.46~22.04.1
————–x1w32P807jd5F0Jd8Evf9xgE–
————–0mP580qI1ryU06aB7D9pf26p
Content-Type: application/pgp-signature; name=”OpenPGP_signature.asc”
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename=”OpenPGP_signature.asc”
—–BEGIN PGP SIGNATURE—–
wsB5BAABCAAjFiEEYrygdx1GDec9TV8EZ0GeRcM5nt0FAmkNuEMFAwAAAAAACgkQZ0GeRcM5nt36
Kgf9GBcvNTW1Pa+U2nFR/5/ZMl6Pg72KpN4l4EqZ8oEZOZxsEcv6qDzJAg1fiWBTV4AZ+s9d8AyH
5v8l/7SsbhzHcSJzTC2CtzzZ+hsCtkWo2p7g0rExZMYy6+OKDWse9lOfC1EqFFcbNDI9RlG53RZu
3yZkPMtz33nclyoo8ENqVUtu/TeoGqi3zs7H45du+rEoikjfI2YJKQwGG3qf9du/sVqa9cfJSFH+
6nF2jBLprV4If3FnR/H96fsOUsNAqJxjXEuc3Wlbxh8eEKF3nNM3YjMOR0U2ozgUOhilWAaJOJXq
rgu894IJMw+Rm/Bkdabh2iSXgRlH556eZoRQmoZK5A==
=1Mr2
—–END PGP SIGNATURE—–
————–0mP580qI1ryU06aB7D9pf26p–
Read more here: Source link