[USN-6496-1] Linux kernel vulnerabilities
==========================================================================
Ubuntu Security Notice USN-6496-1
November 21, 2023
linux, linux-aws, linux-aws-5.15, linux-hwe-5.15, linux-ibm,
linux-ibm-5.15, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15,
linux-nvidia, linux-oracle, linux-oracle-5.15, linux-raspi 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: Linux kernel
- linux-aws: Linux kernel for Amazon Web Services (AWS) systems
- linux-ibm: Linux kernel for IBM cloud systems
- linux-kvm: Linux kernel for cloud environments
- linux-lowlatency: Linux low latency kernel
- linux-nvidia: Linux kernel for NVIDIA systems
- linux-oracle: Linux kernel for Oracle Cloud systems
- linux-raspi: Linux kernel for Raspberry Pi systems
- linux-aws-5.15: Linux kernel for Amazon Web Services (AWS) systems
- linux-hwe-5.15: Linux hardware enablement (HWE) kernel
- linux-ibm-5.15: Linux kernel for IBM cloud systems
- linux-lowlatency-hwe-5.15: Linux low latency kernel
- linux-oracle-5.15: Linux kernel for Oracle Cloud systems
Details:
Ivan D Barrera, Christopher Bednarz, Mustafa Ismail, and Shiraz Saleem
discovered that the InfiniBand RDMA driver in the Linux kernel did not
properly check for zero-length STAG or MR registration. A remote attacker
could possibly use this to execute arbitrary code. (CVE-2023-25775)
Yu Hao discovered that the UBI driver in the Linux kernel did not properly
check for MTD with zero erasesize during device attachment. A local
privileged attacker could use this to cause a denial of service (system
crash). (CVE-2023-31085)
Manfred Rudigier discovered that the Intel(R) PCI-Express Gigabit (igb)
Ethernet driver in the Linux kernel did not properly validate received
frames that are larger than the set MTU size, leading to a buffer overflow
vulnerability. An attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2023-45871)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 22.04 LTS:
linux-image-5.15.0-1041-nvidia 5.15.0-1041.41
linux-image-5.15.0-1041-nvidia-lowlatency 5.15.0-1041.41
linux-image-5.15.0-1043-ibm 5.15.0-1043.46
linux-image-5.15.0-1043-raspi 5.15.0-1043.46
linux-image-5.15.0-1047-kvm 5.15.0-1047.52
linux-image-5.15.0-1048-oracle 5.15.0-1048.54
linux-image-5.15.0-1050-aws 5.15.0-1050.55
linux-image-5.15.0-89-generic 5.15.0-89.99
linux-image-5.15.0-89-generic-64k 5.15.0-89.99
linux-image-5.15.0-89-generic-lpae 5.15.0-89.99
linux-image-5.15.0-89-lowlatency 5.15.0-89.99
linux-image-5.15.0-89-lowlatency-64k 5.15.0-89.99
linux-image-aws-lts-22.04 5.15.0.1050.49
linux-image-generic 5.15.0.89.86
linux-image-generic-64k 5.15.0.89.86
linux-image-generic-lpae 5.15.0.89.86
linux-image-ibm 5.15.0.1043.39
linux-image-kvm 5.15.0.1047.43
linux-image-lowlatency 5.15.0.89.91
linux-image-lowlatency-64k 5.15.0.89.91
linux-image-nvidia 5.15.0.1041.41
linux-image-nvidia-lowlatency 5.15.0.1041.41
linux-image-oracle 5.15.0.1048.43
linux-image-oracle-lts-22.04 5.15.0.1048.43
linux-image-raspi 5.15.0.1043.41
linux-image-raspi-nolpae 5.15.0.1043.41
linux-image-virtual 5.15.0.89.86
Ubuntu 20.04 LTS:
linux-image-5.15.0-1043-ibm 5.15.0-1043.46~20.04.1
linux-image-5.15.0-1048-oracle 5.15.0-1048.54~20.04.1
linux-image-5.15.0-1050-aws 5.15.0-1050.55~20.04.1
linux-image-5.15.0-89-generic 5.15.0-89.99~20.04.1
linux-image-5.15.0-89-generic-64k 5.15.0-89.99~20.04.1
linux-image-5.15.0-89-generic-lpae 5.15.0-89.99~20.04.1
linux-image-5.15.0-89-lowlatency 5.15.0-89.99~20.04.1
linux-image-5.15.0-89-lowlatency-64k 5.15.0-89.99~20.04.1
linux-image-aws 5.15.0.1050.55~20.04.38
linux-image-generic-64k-hwe-20.04 5.15.0.89.99~20.04.47
linux-image-generic-hwe-20.04 5.15.0.89.99~20.04.47
linux-image-generic-lpae-hwe-20.04 5.15.0.89.99~20.04.47
linux-image-ibm 5.15.0.1043.46~20.04.15
linux-image-lowlatency-64k-hwe-20.04 5.15.0.89.99~20.04.44
linux-image-lowlatency-hwe-20.04 5.15.0.89.99~20.04.44
linux-image-oem-20.04 5.15.0.89.99~20.04.47
linux-image-oem-20.04b 5.15.0.89.99~20.04.47
linux-image-oem-20.04c 5.15.0.89.99~20.04.47
linux-image-oem-20.04d 5.15.0.89.99~20.04.47
linux-image-oracle 5.15.0.1048.54~20.04.1
linux-image-virtual-hwe-20.04 5.15.0.89.99~20.04.47
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-6496-1
CVE-2023-25775, CVE-2023-31085, CVE-2023-45871
Package Information:
https://launchpad.net/ubuntu/+source/linux/5.15.0-89.99
https://launchpad.net/ubuntu/+source/linux-aws/5.15.0-1050.55
https://launchpad.net/ubuntu/+source/linux-ibm/5.15.0-1043.46
https://launchpad.net/ubuntu/+source/linux-kvm/5.15.0-1047.52
https://launchpad.net/ubuntu/+source/linux-lowlatency/5.15.0-89.99
https://launchpad.net/ubuntu/+source/linux-nvidia/5.15.0-1041.41
https://launchpad.net/ubuntu/+source/linux-oracle/5.15.0-1048.54
https://launchpad.net/ubuntu/+source/linux-raspi/5.15.0-1043.46
https://launchpad.net/ubuntu/+source/linux-aws-5.15/5.15.0-1050.55~20.04.1
https://launchpad.net/ubuntu/+source/linux-hwe-5.15/5.15.0-89.99~20.04.1
https://launchpad.net/ubuntu/+source/linux-ibm-5.15/5.15.0-1043.46~20.04.1
https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-5.15/5.15.0-89.99~20.04.1
https://launchpad.net/ubuntu/+source/linux-oracle-5.15/5.15.0-1048.54~20.04.1
A Linux kernel security update has been released for Ubuntu Linux 20.04 LTS and 22.04 LTS.
