USN-4210-1: Linux kernel vulnerabilities
3 December 2019
Several security issues were fixed in the Linux kernel.
Releases
Packages
- linux - Linux kernel
- linux-aws - Linux kernel for Amazon Web Services (AWS) systems
- linux-aws-hwe - Linux kernel for Amazon Web Services (AWS-HWE) systems
- linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems
- linux-gke-4.15 - Linux kernel for Google Container Engine (GKE) systems
- linux-hwe - Linux hardware enablement (HWE) kernel
- linux-kvm - Linux kernel for cloud environments
- linux-oem - Linux kernel for OEM processors
- linux-oracle - Linux kernel for Oracle Cloud systems
- linux-raspi2 - Linux kernel for Raspberry Pi 2
- linux-snapdragon - Linux kernel for Snapdragon processors
Details
It was discovered that a buffer overflow existed in the 802.11 Wi-Fi
configuration interface for the Linux kernel when handling beacon settings.
A local attacker could use this to cause a denial of service (system crash)
or possibly execute arbitrary code. (CVE-2019-16746)
Nicolas Waisman discovered that the WiFi driver stack in the Linux kernel
did not properly validate SSID lengths. A physically proximate attacker
could use this to cause a denial of service (system crash).
(CVE-2019-17133)
It was discovered that the ADIS16400 IIO IMU Driver for the Linux kernel
did not properly deallocate memory in certain error conditions. A local
attacker could use this to cause a denial of service (memory exhaustion).
(CVE-2019-19060)
It was discovered that the Intel OPA Gen1 Infiniband Driver for the Linux
kernel did not properly deallocate memory in certain error conditions. A
local attacker could use this to cause a denial of service (memory
exhaustion). (CVE-2019-19065)
It was discovered that the Cascoda CA8210 SPI 802.15.4 wireless controller
driver for the Linux kernel did not properly deallocate memory in certain
error conditions. A local attacker could use this to cause a denial of
service (memory exhaustion). (CVE-2019-19075)
Nicolas Waisman discovered that the Chelsio T4/T5 RDMA Driver for the Linux
kernel performed DMA from a kernel stack. A local attacker could use this
to cause a denial of service (system crash). (CVE-2019-17075)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 18.04
-
linux-image-4.15.0-1030-oracle
-
4.15.0-1030.33
-
linux-image-4.15.0-1049-gke
-
4.15.0-1049.52
-
linux-image-4.15.0-1051-kvm
-
4.15.0-1051.51
-
linux-image-4.15.0-1052-raspi2
-
4.15.0-1052.56
-
linux-image-4.15.0-1056-aws
-
4.15.0-1056.58
-
linux-image-4.15.0-1065-oem
-
4.15.0-1065.75
-
linux-image-4.15.0-1069-snapdragon
-
4.15.0-1069.76
-
linux-image-4.15.0-72-generic
-
4.15.0-72.81
-
linux-image-4.15.0-72-generic-lpae
-
4.15.0-72.81
-
linux-image-4.15.0-72-lowlatency
-
4.15.0-72.81
-
linux-image-aws
-
4.15.0.1056.57
-
linux-image-aws-lts-18.04
-
4.15.0.1056.57
-
linux-image-generic
-
4.15.0.72.74
-
linux-image-generic-lpae
-
4.15.0.72.74
-
linux-image-gke
-
4.15.0.1049.52
-
linux-image-gke-4.15
-
4.15.0.1049.52
-
linux-image-kvm
-
4.15.0.1051.51
-
linux-image-lowlatency
-
4.15.0.72.74
-
linux-image-oem
-
4.15.0.1065.69
-
linux-image-oracle
-
4.15.0.1030.35
-
linux-image-oracle-lts-18.04
-
4.15.0.1030.35
-
linux-image-raspi2
-
4.15.0.1052.50
-
linux-image-snapdragon
-
4.15.0.1069.72
-
linux-image-virtual
-
4.15.0.72.74
Ubuntu 16.04
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linux-image-4.15.0-1030-oracle
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4.15.0-1030.33~16.04.1
-
linux-image-4.15.0-1050-gcp
-
4.15.0-1050.53
-
linux-image-4.15.0-1056-aws
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4.15.0-1056.58~16.04.1
-
linux-image-4.15.0-72-generic
-
4.15.0-72.81~16.04.1
-
linux-image-4.15.0-72-generic-lpae
-
4.15.0-72.81~16.04.1
-
linux-image-4.15.0-72-lowlatency
-
4.15.0-72.81~16.04.1
-
linux-image-aws-hwe
-
4.15.0.1056.56
-
linux-image-gcp
-
4.15.0.1050.64
-
linux-image-generic-hwe-16.04
-
4.15.0.72.92
-
linux-image-generic-lpae-hwe-16.04
-
4.15.0.72.92
-
linux-image-gke
-
4.15.0.1050.64
-
linux-image-lowlatency-hwe-16.04
-
4.15.0.72.92
-
linux-image-oem
-
4.15.0.72.92
-
linux-image-oracle
-
4.15.0.1030.23
-
linux-image-virtual-hwe-16.04
-
4.15.0.72.92
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.