[USN-6174-1] Linux kernel (OEM) vulnerabilities
==========================================================================
Ubuntu Security Notice USN-6174-1
June 16, 2023
linux-oem-5.17 vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 22.04 LTS
Summary:
Several security issues were fixed in the Linux kernel.
Software Description:
- linux-oem-5.17: Linux kernel for OEM systems
Details:
Jordy Zomer and Alexandra Sandulescu discovered that the Linux kernel did
not properly implement speculative execution barriers in usercopy functions
in certain situations. A local attacker could use this to expose sensitive
information (kernel memory). (CVE-2023-0459)
It was discovered that the Human Interface Device (HID) support driver in
the Linux kernel contained a type confusion vulnerability in some
situations. A local attacker could use this to cause a denial of service
(system crash). (CVE-2023-1073)
It was discovered that the NTFS file system implementation in the Linux
kernel did not properly handle a loop termination condition, leading to an
out-of-bounds read vulnerability. A local attacker could use this to cause
a denial of service (system crash) or possibly expose sensitive
information. (CVE-2023-26606)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 22.04 LTS:
linux-image-5.17.0-1033-oem 5.17.0-1033.34
linux-image-oem-22.04 5.17.0.1033.31
linux-image-oem-22.04a 5.17.0.1033.31
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:
https://ubuntu.com/security/notices/USN-6174-1
CVE-2023-0459, CVE-2023-1073, CVE-2023-26606
Package Information:
https://launchpad.net/ubuntu/+source/linux-oem-5.17/5.17.0-1033.34
A Linux kernel (OEM) security update has been released for Ubuntu Linux 22.04 LTS.
