Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
Title Linux kernel (HWE) vulnerabilities
Informations
Name USN-4225-2 First vendor Publication 2020-01-18
Vendor Ubuntu Last vendor Modification 2020-01-18
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:C)
Cvss Base Score 7.8 Attack Range Network
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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

- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description: - linux-hwe: Linux hardware enablement (HWE) kernel

Details:

USN-4225-1 fixed vulnerabilities in the Linux kernel for Ubuntu 19.10. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 19.10 for Ubuntu 18.04 LTS.

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)

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 the Intel WiMAX 2400 driver in the Linux kernel did not properly deallocate memory in certain situations. A local attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19051)

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 netlink-based 802.11 configuration interface in the Linux kernel did not deallocate memory in certain error conditions. A local attacker could possibly use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19055)

It was discovered that the event tracing subsystem of the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19072)

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)

It was discovered that the DesignWare USB3 controller driver in the Linux kernel did not properly deallocate memory in some error conditions. A local attacker could possibly use this to cause a denial of service (memory exhaustion). (CVE-2019-18813)

Update instructions:

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

Ubuntu 18.04 LTS:
linux-image-5.3.0-26-generic 5.3.0-26.28~18.04.1
linux-image-5.3.0-26-generic-lpae 5.3.0-26.28~18.04.1
linux-image-5.3.0-26-lowlatency 5.3.0-26.28~18.04.1
linux-image-generic-hwe-18.04 5.3.0.26.95
linux-image-generic-lpae-hwe-18.04 5.3.0.26.95
linux-image-lowlatency-hwe-18.04 5.3.0.26.95
linux-image-snapdragon-hwe-18.04 5.3.0.26.95
linux-image-virtual-hwe-18.04 5.3.0.26.95

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/4225-2
https://usn.ubuntu.com/4225-1
CVE-2019-14895, CVE-2019-14896, CVE-2019-14897, CVE-2019-14901,
CVE-2019-16231, CVE-2019-18660, CVE-2019-18813, CVE-2019-19045,
CVE-2019-19051, CVE-2019-19052, CVE-2019-19055, CVE-2019-19072,
CVE-2019-19524, CVE-2019-19529, CVE-2019-19534

Package Information:
https://launchpad.net/ubuntu/+source/linux-hwe/5.3.0-26.28~18.04.1

Original Source

Url : http://www.ubuntu.com/usn/USN-4225-2

CWE : Common Weakness Enumeration

% Id Name
43 % CWE-401 Failure to Release Memory Before Removing Last Reference ('Memory Leak')
29 % CWE-787 Out-of-bounds Write (CWE/SANS Top 25)
14 % CWE-416 Use After Free
7 % CWE-476 NULL Pointer Dereference
7 % CWE-200 Information Exposure

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 5
Os 1
Os 2
Os 3351
Os 2
Os 3

Alert History

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0
Date Informations
2020-01-18 09:19:06
  • First insertion