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 vulnerabilities
Informations
Name USN-4364-1 First vendor Publication 2020-05-18
Vendor Ubuntu Last vendor Modification 2020-05-18
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 7.8
Base Score 7.8 Environmental Score 7.8
impact SubScore 5.9 Temporal Score 7.8
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 4.6 Attack Range Local
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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

- Ubuntu 16.04 LTS - Ubuntu 14.04 ESM

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-raspi2: Linux kernel for Raspberry Pi (V7) systems - linux-snapdragon: Linux kernel for Qualcomm Snapdragon processors - linux-lts-xenial: Linux hardware enablement kernel from Xenial for Trusty

Details:

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 vhost net driver in the Linux kernel contained a stack buffer overflow. A local attacker with the ability to perform ioctl() calls on /dev/vhost-net could use this to cause a denial of service (system crash). (CVE-2020-10942)

It was discovered that the Serial CAN interface driver in the Linux kernel did not properly initialize data. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2020-11494)

It was discovered that the linux kernel did not properly validate certain mount options to the tmpfs virtual memory file system. A local attacker with the ability to specify mount options could use this to cause a denial of service (system crash). (CVE-2020-11565)

It was discovered that the OV51x USB Camera device driver in the Linux kernel did not properly validate device metadata. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2020-11608)

It was discovered that the STV06XX USB Camera device driver in the Linux kernel did not properly validate device metadata. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2020-11609)

It was discovered that the Xirlink C-It USB Camera device driver in the Linux kernel did not properly validate device metadata. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2020-11668)

Update instructions:

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

Ubuntu 16.04 LTS:
linux-image-4.4.0-1107-aws 4.4.0-1107.118
linux-image-4.4.0-1133-raspi2 4.4.0-1133.142
linux-image-4.4.0-1137-snapdragon 4.4.0-1137.145
linux-image-4.4.0-179-generic 4.4.0-179.209
linux-image-4.4.0-179-generic-lpae 4.4.0-179.209
linux-image-4.4.0-179-lowlatency 4.4.0-179.209
linux-image-4.4.0-179-powerpc-e500mc 4.4.0-179.209
linux-image-4.4.0-179-powerpc-smp 4.4.0-179.209
linux-image-4.4.0-179-powerpc64-emb 4.4.0-179.209
linux-image-4.4.0-179-powerpc64-smp 4.4.0-179.209
linux-image-aws 4.4.0.1107.111
linux-image-generic 4.4.0.179.187
linux-image-generic-lpae 4.4.0.179.187
linux-image-lowlatency 4.4.0.179.187
linux-image-powerpc-e500mc 4.4.0.179.187
linux-image-powerpc-smp 4.4.0.179.187
linux-image-powerpc64-emb 4.4.0.179.187
linux-image-powerpc64-smp 4.4.0.179.187
linux-image-raspi2 4.4.0.1133.133
linux-image-snapdragon 4.4.0.1137.129
linux-image-virtual 4.4.0.179.187

Ubuntu 14.04 ESM:
linux-image-4.4.0-1067-aws 4.4.0-1067.71
linux-image-4.4.0-179-generic 4.4.0-179.209~14.04.1+signed1
linux-image-4.4.0-179-generic-lpae 4.4.0-179.209~14.04.1
linux-image-4.4.0-179-lowlatency 4.4.0-179.209~14.04.1+signed1
linux-image-4.4.0-179-powerpc-e500mc 4.4.0-179.209~14.04.1
linux-image-4.4.0-179-powerpc-smp 4.4.0-179.209~14.04.1
linux-image-4.4.0-179-powerpc64-emb 4.4.0-179.209~14.04.1
linux-image-4.4.0-179-powerpc64-smp 4.4.0-179.209~14.04.1
linux-image-aws 4.4.0.1067.68
linux-image-generic-lpae-lts-xenial 4.4.0.179.158
linux-image-generic-lts-xenial 4.4.0.179.158
linux-image-lowlatency-lts-xenial 4.4.0.179.158
linux-image-powerpc-e500mc-lts-xenial 4.4.0.179.158
linux-image-powerpc-smp-lts-xenial 4.4.0.179.158
linux-image-powerpc64-emb-lts-xenial 4.4.0.179.158
linux-image-powerpc64-smp-lts-xenial 4.4.0.179.158
linux-image-virtual-lts-xenial 4.4.0.179.158

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/4364-1
CVE-2019-19060, CVE-2020-10942, CVE-2020-11494, CVE-2020-11565,
CVE-2020-11608, CVE-2020-11609, CVE-2020-11668

Package Information:
https://launchpad.net/ubuntu/+source/linux/4.4.0-179.209
https://launchpad.net/ubuntu/+source/linux-aws/4.4.0-1107.118
https://launchpad.net/ubuntu/+source/linux-raspi2/4.4.0-1133.142
https://launchpad.net/ubuntu/+source/linux-snapdragon/4.4.0-1137.145

Original Source

Url : http://www.ubuntu.com/usn/USN-4364-1

CWE : Common Weakness Enumeration

% Id Name
43 % CWE-476 NULL Pointer Dereference
14 % CWE-787 Out-of-bounds Write (CWE/SANS Top 25)
14 % CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')
14 % CWE-200 Information Exposure
14 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 4
Os 3327
Os 1

Alert History

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0
1
Date Informations
2020-05-23 13:03:46
  • Multiple Updates
2020-05-19 05:18:40
  • First insertion