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AUSCERT External Security Bulletin Redistribution
ESB-2019.4537
USN-4208-1: Linux kernel vulnerabilities
3 December 2019
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AusCERT Security Bulletin Summary
---------------------------------
Product: kernel
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Root Compromise -- Existing Account
Access Privileged Data -- Existing Account
Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2019-19083 CVE-2019-19075 CVE-2019-19069
CVE-2019-19067 CVE-2019-19065 CVE-2019-19061
CVE-2019-19060 CVE-2019-19048 CVE-2019-18810
CVE-2019-17133 CVE-2019-17075 CVE-2019-15794
Reference: ESB-2019.4346
ESB-2019.4040
Original Bulletin:
https://usn.ubuntu.com/4208-1/
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USN-4208-1: Linux kernel vulnerabilities
2 December 2019
linux, linux-aws, linux-gcp, linux-gcp-5.3, linux-kvm, linux-oracle vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 19.10
o Ubuntu 18.04 LTS
Summary
Several security issues were fixed in the Linux kernel.
Software Description
o linux - Linux kernel
o linux-aws - Linux kernel for Amazon Web Services (AWS) systems
o linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems
o linux-kvm - Linux kernel for cloud environments
o linux-oracle - Linux kernel for Oracle Cloud systems
o linux-gcp-5.3 - Linux kernel for Google Cloud Platform (GCP) systems
Details
Jann Horn discovered that the OverlayFS and ShiftFS Drivers in the Linux kernel
did not properly handle reference counting during memory mapping operations
when used in conjunction with AUFS. A local attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2019-15794)
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 ARM Komeda display 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-2019-18810)
It was discovered that the VirtualBox guest driver implementation in 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-2019-19048)
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, CVE-2019-19061)
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 AMD Audio CoProcessor Driver for the Linux kernel
did not properly deallocate memory in certain error conditions. A local
attacker with the ability to load modules could use this to cause a denial of
service (memory exhaustion). (CVE-2019-19067)
It was discovered in the Qualcomm FastRPC 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-2019-19069)
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)
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)
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 19.10
linux-image-5.3.0-1007-oracle - 5.3.0-1007.8
linux-image-5.3.0-1008-aws - 5.3.0-1008.9
linux-image-5.3.0-1008-kvm - 5.3.0-1008.9
linux-image-5.3.0-1009-gcp - 5.3.0-1009.10
linux-image-5.3.0-24-generic - 5.3.0-24.26
linux-image-5.3.0-24-generic-lpae - 5.3.0-24.26
linux-image-5.3.0-24-lowlatency - 5.3.0-24.26
linux-image-5.3.0-24-snapdragon - 5.3.0-24.26
linux-image-aws - 5.3.0.1008.10
linux-image-gcp - 5.3.0.1009.10
linux-image-generic - 5.3.0.24.28
linux-image-generic-lpae - 5.3.0.24.28
linux-image-gke - 5.3.0.1009.10
linux-image-kvm - 5.3.0.1008.10
linux-image-lowlatency - 5.3.0.24.28
linux-image-oracle - 5.3.0.1007.8
linux-image-snapdragon - 5.3.0.24.28
linux-image-virtual - 5.3.0.24.28
Ubuntu 18.04 LTS
linux-image-5.3.0-1009-gcp - 5.3.0-1009.10~18.04.1
linux-image-gcp-edge - 5.3.0.1009.9
To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades .
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
o CVE-2019-15794
o CVE-2019-17075
o CVE-2019-17133
o CVE-2019-18810
o CVE-2019-19048
o CVE-2019-19060
o CVE-2019-19061
o CVE-2019-19065
o CVE-2019-19067
o CVE-2019-19069
o CVE-2019-19075
o CVE-2019-19083
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