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-3677-1 First vendor Publication 2018-06-11
Vendor Ubuntu Last vendor Modification 2018-06-11
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:L/AC:L/Au:N/C:C/I:C/A:C)
Cvss Base Score 7.2 Attack Range Local
Cvss Impact Score 10 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 17.10

Summary:

Several security issues were fixed in the Linux kernel.

Software Description: - linux: Linux kernel - linux-raspi2: Linux kernel for Raspberry Pi 2

Details:

It was discovered that the netfilter subsystem of the Linux kernel did not properly validate ebtables offsets. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-1068)

Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly handle corrupted meta data in some situations. An attacker could use this to specially craft an ext4 file system that caused a denial of service (system crash) when mounted. (CVE-2018-1092)

It was discovered that a NULL pointer dereference existed in the RDS (Reliable Datagram Sockets) protocol implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-7492)

It was discovered that the 802.11 software simulator implementation in the Linux kernel contained a memory leak when handling certain error conditions. A local attacker could possibly use this to cause a denial of service (memory exhaustion). (CVE-2018-8087)

Eyal Itkin discovered that the USB displaylink video adapter driver in the Linux kernel did not properly validate mmap offsets sent from userspace. A local attacker could use this to expose sensitive information (kernel memory) or possibly execute arbitrary code. (CVE-2018-8781)

Update instructions:

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

Ubuntu 17.10:
linux-image-4.13.0-1022-raspi2 4.13.0-1022.23
linux-image-4.13.0-45-generic 4.13.0-45.50
linux-image-4.13.0-45-generic-lpae 4.13.0-45.50
linux-image-4.13.0-45-lowlatency 4.13.0-45.50
linux-image-generic 4.13.0.45.48
linux-image-generic-lpae 4.13.0.45.48
linux-image-lowlatency 4.13.0.45.48
linux-image-raspi2 4.13.0.1022.20

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/usn/usn-3677-1
CVE-2018-1068, CVE-2018-1092, CVE-2018-7492, CVE-2018-8087,
CVE-2018-8781

Package Information:
https://launchpad.net/ubuntu/+source/linux/4.13.0-45.50
https://launchpad.net/ubuntu/+source/linux-raspi2/4.13.0-1022.23

Original Source

Url : http://www.ubuntu.com/usn/USN-3677-1

CWE : Common Weakness Enumeration

% Id Name
40 % CWE-476 NULL Pointer Dereference
20 % CWE-787 Out-of-bounds Write (CWE/SANS Top 25)
20 % CWE-772 Missing Release of Resource after Effective Lifetime
20 % CWE-190 Integer Overflow or Wraparound (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 5
Os 3
Os 3100
Os 1
Os 1
Os 1
Os 2
Os 1
Os 1

Nessus® Vulnerability Scanner

Date Description
2018-12-28 Name : The remote EulerOS host is missing multiple security updates.
File : EulerOS_SA-2018-1432.nasl - Type : ACT_GATHER_INFO
2018-11-16 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2018-3083.nasl - Type : ACT_GATHER_INFO
2018-09-27 Name : The remote EulerOS host is missing multiple security updates.
File : EulerOS_SA-2018-1296.nasl - Type : ACT_GATHER_INFO
2018-09-18 Name : The remote EulerOS Virtualization host is missing a security update.
File : EulerOS_SA-2018-1262.nasl - Type : ACT_GATHER_INFO
2018-09-18 Name : The remote EulerOS Virtualization host is missing multiple security updates.
File : EulerOS_SA-2018-1261.nasl - Type : ACT_GATHER_INFO
2018-09-18 Name : The remote EulerOS Virtualization host is missing multiple security updates.
File : EulerOS_SA-2018-1260.nasl - Type : ACT_GATHER_INFO
2018-09-18 Name : The remote EulerOS Virtualization host is missing a security update.
File : EulerOS_SA-2018-1256.nasl - Type : ACT_GATHER_INFO
2018-08-17 Name : The remote PhotonOS host is missing multiple security updates.
File : PhotonOS_PHSA-2018-1_0-0135.nasl - Type : ACT_GATHER_INFO
2018-08-17 Name : The remote PhotonOS host is missing multiple security updates.
File : PhotonOS_PHSA-2018-1_0-0132.nasl - Type : ACT_GATHER_INFO
2018-07-24 Name : The remote PhotonOS host is missing multiple security updates.
File : PhotonOS_PHSA-2018-2_0-0041.nasl - Type : ACT_GATHER_INFO
2018-07-03 Name : The remote EulerOS host is missing multiple security updates.
File : EulerOS_SA-2018-1196.nasl - Type : ACT_GATHER_INFO
2018-05-31 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2018-1318.nasl - Type : ACT_GATHER_INFO
2018-05-30 Name : The remote Amazon Linux 2 host is missing a security update.
File : al2_ALAS-2018-1023.nasl - Type : ACT_GATHER_INFO
2018-05-30 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2018-1023.nasl - Type : ACT_GATHER_INFO
2018-05-29 Name : The remote EulerOS host is missing multiple security updates.
File : EulerOS_SA-2018-1133.nasl - Type : ACT_GATHER_INFO
2018-05-29 Name : The remote EulerOS host is missing multiple security updates.
File : EulerOS_SA-2018-1132.nasl - Type : ACT_GATHER_INFO
2018-05-23 Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2018-142-01.nasl - Type : ACT_GATHER_INFO
2018-05-03 Name : The remote Debian host is missing a security update.
File : debian_DLA-1369.nasl - Type : ACT_GATHER_INFO
2018-05-02 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-4188.nasl - Type : ACT_GATHER_INFO
2018-05-02 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-4187.nasl - Type : ACT_GATHER_INFO
2018-04-20 Name : The remote Amazon Linux 2 host is missing a security update.
File : al2_ALAS-2018-994.nasl - Type : ACT_GATHER_INFO
2018-04-18 Name : The remote Amazon Linux 2 host is missing a security update.
File : al2_ALAS-2018-971.nasl - Type : ACT_GATHER_INFO
2018-03-23 Name : The remote Virtuozzo host is missing a security update.
File : Virtuozzo_VZA-2018-015.nasl - Type : ACT_GATHER_INFO
2018-03-23 Name : The remote Virtuozzo host is missing a security update.
File : Virtuozzo_VZA-2018-014.nasl - Type : ACT_GATHER_INFO
2018-03-21 Name : The remote Fedora host is missing a security update.
File : fedora_2018-959aac67a3.nasl - Type : ACT_GATHER_INFO
2018-03-21 Name : The remote Fedora host is missing a security update.
File : fedora_2018-296bf0c332.nasl - Type : ACT_GATHER_INFO
2018-03-19 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2018-971.nasl - Type : ACT_GATHER_INFO

Alert History

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0
Date Informations
2018-06-12 09:19:03
  • First insertion