USN-5976-1: Linux kernel (OEM) vulnerabilities
==========================================================================
Ubuntu Security Notice USN-5976-1
March 27, 2023
linux-oem-5.14, linux-oem-5.17 vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
Summary:
Several security issues were fixed in the Linux kernel.
Software Description:
- linux-oem-5.17: Linux kernel for OEM systems
- linux-oem-5.14: Linux kernel for OEM systems
Details:
It was discovered that the Upper Level Protocol (ULP) subsystem in the
Linux kernel did not properly handle sockets entering the LISTEN state in
certain protocols, leading to a use-after-free vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2023-0461)
It was discovered that the KVM VMX implementation in the Linux kernel did
not properly handle indirect branch prediction isolation between L1 and L2
VMs. An attacker in a guest VM could use this to expose sensitive
information from the host OS or other guest VMs. (CVE-2022-2196)
It was discovered that the Intel 740 frame buffer driver in the Linux
kernel contained a divide by zero vulnerability. A local attacker could use
this to cause a denial of service (system crash). (CVE-2022-3061)
It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux
kernel did not properly perform bounds checking in some situations. A
physically proximate attacker could use this to craft a malicious USB
device that when inserted, could cause a denial of service (system crash)
or possibly execute arbitrary code. (CVE-2022-3628)
Ziming Zhang discovered that the VMware Virtual GPU DRM driver in the Linux
kernel contained an out-of-bounds write vulnerability. A local attacker
could use this to cause a denial of service (system crash).
(CVE-2022-36280)
It was discovered that the NILFS2 file system implementation in the Linux
kernel did not properly deallocate memory in certain error conditions. An
attacker could use this to cause a denial of service (memory exhaustion).
(CVE-2022-3646)
Khalid Masum discovered that the NILFS2 file system implementation in the
Linux kernel did not properly handle certain error conditions, leading to a
use-after-free vulnerability. A local attacker could use this to cause a
denial of service or possibly execute arbitrary code. (CVE-2022-3649)
It was discovered that a race condition existed in the Roccat HID driver in
the Linux kernel, leading to a use-after-free vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2022-41850)
Kyle Zeng discovered that the IPv6 implementation in the Linux kernel
contained a NULL pointer dereference vulnerability in certain situations. A
local attacker could use this to cause a denial of service (system crash).
(CVE-2023-0394)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 22.04 LTS:
linux-image-5.17.0-1029-oem 5.17.0-1029.30
linux-image-oem-22.04 5.17.0.1029.27
linux-image-oem-22.04a 5.17.0.1029.27
Ubuntu 20.04 LTS:
linux-image-5.14.0-1059-oem 5.14.0-1059.67
linux-image-oem-20.04 5.14.0.1059.57
linux-image-oem-20.04b 5.14.0.1059.57
linux-image-oem-20.04c 5.14.0.1059.57
linux-image-oem-20.04d 5.14.0.1059.57
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-5976-1
CVE-2022-2196, CVE-2022-3061, CVE-2022-3628, CVE-2022-36280,
CVE-2022-3646, CVE-2022-3649, CVE-2022-41850, CVE-2023-0394,
CVE-2023-0461
Package Information:
https://launchpad.net/ubuntu/+source/linux-oem-5.17/5.17.0-1029.30
https://launchpad.net/ubuntu/+source/linux-oem-5.14/5.14.0-1059.67
A Linux kernel (OEM) security update has been released for Ubuntu Linux 20.04 LTS and 22.04 LTS.
