Executive Summary

Summary
Title Linux kernel vulnerabilities
Informations
NameUSN-4227-1First vendor Publication2020-01-07
VendorUbuntuLast vendor Modification2020-01-07
Severity (Vendor) N/ARevisionN/A

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:C)
Cvss Base Score7.8Attack RangeNetwork
Cvss Impact Score6.9Attack ComplexityLow
Cvss Expoit Score10AuthenticationNone Required
Calculate full CVSS 2.0 Vectors scores

Detail

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.04 LTS - Ubuntu 16.04 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-gke-4.15: Linux kernel for Google Container Engine (GKE) systems - 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 - linux-aws-hwe: Linux kernel for Amazon Web Services (AWS-HWE) systems - linux-azure: Linux kernel for Microsoft Azure Cloud systems - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-hwe: Linux hardware enablement (HWE) kernel

Details:

It was discovered that a heap-based buffer overflow existed in the Marvell WiFi-Ex Driver for the Linux kernel. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-14895, CVE-2019-14901)

It was discovered that a heap-based buffer overflow existed in the Marvell Libertas WLAN Driver for the Linux kernel. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-14896, CVE-2019-14897)

It was discovered that the Fujitsu ES network device driver for the Linux kernel did not properly check for errors in some situations, leading to a NULL pointer dereference. A local attacker could use this to cause a denial of service. (CVE-2019-16231)

It was discovered that the QLogic Fibre Channel driver in the Linux kernel did not properly check for error, leading to a NULL pointer dereference. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2019-16233)

Anthony Steinhauser discovered that the Linux kernel did not properly perform Spectre_RSB mitigations to all processors for PowerPC architecture systems in some situations. A local attacker could use this to expose sensitive information. (CVE-2019-18660)

It was discovered that the Mellanox Technologies Innova driver in the Linux kernel did not properly deallocate memory in certain failure conditions. A local attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19045)

It was discovered that Geschwister Schneider USB CAN interface driver in the Linux kernel did not properly deallocate memory in certain failure conditions. A physically proximate attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19052)

It was discovered that the AMD Display Engine Driver in the Linux kernel did not properly deallocate memory in certain error conditions. A local attack could use this to cause a denial of service (memory exhaustion). (CVE-2019-19083)

It was discovered that the driver for memoryless force-feedback input devices in the Linux kernel contained a use-after-free vulnerability. A physically proximate attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2019-19524)

It was discovered that the Microchip CAN BUS Analyzer driver in the Linux kernel contained a use-after-free vulnerability on device disconnect. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-19529)

It was discovered that the PEAK-System Technik USB driver in the Linux kernel did not properly sanitize memory before sending it to the device. A physically proximate attacker could use this to expose sensitive information (kernel memory). (CVE-2019-19534)

Tristan Madani discovered that the ALSA timer implementation in the Linux kernel contained 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-2019-19807)

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 18.04 LTS:
linux-image-4.15.0-1031-oracle 4.15.0-1031.34
linux-image-4.15.0-1050-gke 4.15.0-1050.53
linux-image-4.15.0-1052-kvm 4.15.0-1052.52
linux-image-4.15.0-1053-raspi2 4.15.0-1053.57
linux-image-4.15.0-1057-aws 4.15.0-1057.59
linux-image-4.15.0-1066-oem 4.15.0-1066.76
linux-image-4.15.0-1070-snapdragon 4.15.0-1070.77
linux-image-4.15.0-74-generic 4.15.0-74.84
linux-image-4.15.0-74-generic-lpae 4.15.0-74.84
linux-image-4.15.0-74-lowlatency 4.15.0-74.84
linux-image-aws 4.15.0.1057.58
linux-image-aws-lts-18.04 4.15.0.1057.58
linux-image-generic 4.15.0.74.76
linux-image-generic-lpae 4.15.0.74.76
linux-image-gke 4.15.0.1050.53
linux-image-gke-4.15 4.15.0.1050.53
linux-image-kvm 4.15.0.1052.52
linux-image-lowlatency 4.15.0.74.76
linux-image-oem 4.15.0.1066.70
linux-image-oracle 4.15.0.1031.36
linux-image-oracle-lts-18.04 4.15.0.1031.36
linux-image-powerpc-e500mc 4.15.0.74.76
linux-image-powerpc-smp 4.15.0.74.76
linux-image-powerpc64-emb 4.15.0.74.76
linux-image-powerpc64-smp 4.15.0.74.76
linux-image-raspi2 4.15.0.1053.51
linux-image-snapdragon 4.15.0.1070.73
linux-image-virtual 4.15.0.74.76

Ubuntu 16.04 LTS:
linux-image-4.15.0-1031-oracle 4.15.0-1031.34~16.04.1
linux-image-4.15.0-1052-gcp 4.15.0-1052.56
linux-image-4.15.0-1057-aws 4.15.0-1057.59~16.04.1
linux-image-4.15.0-1066-azure 4.15.0-1066.71
linux-image-4.15.0-74-generic 4.15.0-74.83~16.04.1
linux-image-4.15.0-74-generic-lpae 4.15.0-74.83~16.04.1
linux-image-4.15.0-74-lowlatency 4.15.0-74.83~16.04.1
linux-image-aws-hwe 4.15.0.1057.57
linux-image-azure 4.15.0.1066.69
linux-image-azure-edge 4.15.0.1066.69
linux-image-gcp 4.15.0.1052.66
linux-image-generic-hwe-16.04 4.15.0.74.94
linux-image-generic-lpae-hwe-16.04 4.15.0.74.94
linux-image-gke 4.15.0.1052.66
linux-image-lowlatency-hwe-16.04 4.15.0.74.94
linux-image-oem 4.15.0.74.94
linux-image-oracle 4.15.0.1031.24
linux-image-virtual-hwe-16.04 4.15.0.74.94

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://usn.ubuntu.com/4227-1
CVE-2019-14895, CVE-2019-14896, CVE-2019-14897, CVE-2019-14901,
CVE-2019-16231, CVE-2019-16233, CVE-2019-18660, CVE-2019-19045,
CVE-2019-19052, CVE-2019-19083, CVE-2019-19524, CVE-2019-19529,
CVE-2019-19534, CVE-2019-19807

Package Information:
https://launchpad.net/ubuntu/+source/linux/4.15.0-74.84
https://launchpad.net/ubuntu/+source/linux-aws/4.15.0-1057.59
https://launchpad.net/ubuntu/+source/linux-gke-4.15/4.15.0-1050.53
https://launchpad.net/ubuntu/+source/linux-kvm/4.15.0-1052.52
https://launchpad.net/ubuntu/+source/linux-oem/4.15.0-1066.76
https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1031.34
https://launchpad.net/ubuntu/+source/linux-raspi2/4.15.0-1053.57
https://launchpad.net/ubuntu/+source/linux-snapdragon/4.15.0-1070.77
https://launchpad.net/ubuntu/+source/linux-aws-hwe/4.15.0-1057.59~16.04.1
https://launchpad.net/ubuntu/+source/linux-azure/4.15.0-1066.71
https://launchpad.net/ubuntu/+source/linux-gcp/4.15.0-1052.56
https://launchpad.net/ubuntu/+source/linux-hwe/4.15.0-74.83~16.04.1
https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1031.34~16.04.1

Original Source

Url : http://www.ubuntu.com/usn/USN-4227-1

CWE : Common Weakness Enumeration

%idName
100 %CWE-476NULL Pointer Dereference

CPE : Common Platform Enumeration

TypeDescriptionCount
Os1

Alert History

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0
DateInformations
2020-01-07 05:19:42
  • First insertion