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
NameUSN-4094-1First vendor Publication2019-08-13
VendorUbuntuLast vendor Modification2019-08-13
Severity (Vendor) N/ARevisionN/A

Security-Database Scoring CVSS v2

Cvss vector : (AV:A/AC:L/Au:N/C:C/I:C/A:C)
Cvss Base Score8.3Attack RangeAdjacent network
Cvss Impact Score10Attack ComplexityLow
Cvss Expoit Score6.5AuthenticationNone 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-gcp: Linux kernel for Google Cloud Platform (GCP) 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-azure: Linux kernel for Microsoft Azure Cloud systems - linux-hwe: Linux hardware enablement (HWE) kernel

Details:

It was discovered that the alarmtimer implementation in the Linux kernel contained an integer overflow vulnerability. A local attacker could use this to cause a denial of service. (CVE-2018-13053)

Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly track inode validations. An attacker could use this to construct a malicious XFS image that, when mounted, could cause a denial of service (system crash). (CVE-2018-13093)

Wen Xu discovered that the f2fs file system implementation in the Linux kernel did not properly validate metadata. An attacker could use this to construct a malicious f2fs image that, when mounted, could cause a denial of service (system crash). (CVE-2018-13097, CVE-2018-13099, CVE-2018-13100, CVE-2018-14614, CVE-2018-14616, CVE-2018-13096, CVE-2018-13098, CVE-2018-14615)

Wen Xu and Po-Ning Tseng discovered that btrfs file system implementation in the Linux kernel did not properly validate metadata. An attacker could use this to construct a malicious btrfs image that, when mounted, could cause a denial of service (system crash). (CVE-2018-14610, CVE-2018-14611, CVE-2018-14612, CVE-2018-14613, CVE-2018-14609)

Wen Xu discovered that the HFS+ filesystem implementation in the Linux kernel did not properly handle malformed catalog data in some situations. An attacker could use this to construct a malicious HFS+ image that, when mounted, could cause a denial of service (system crash). (CVE-2018-14617)

Vasily Averin and Pavel Tikhomirov discovered that the cleancache subsystem of the Linux kernel did not properly initialize new files in some situations. A local attacker could use this to expose sensitive information. (CVE-2018-16862)

Hui Peng and Mathias Payer discovered that the USB subsystem in the Linux kernel did not properly handle size checks when handling an extra USB descriptor. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2018-20169)

It was discovered that a use-after-free error existed in the block layer subsystem of the Linux kernel when certain failure conditions occurred. A local attacker could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-20856)

Eli Biham and Lior Neumann discovered that the Bluetooth implementation in the Linux kernel did not properly validate elliptic curve parameters during Diffie-Hellman key exchange in some situations. An attacker could use this to expose sensitive information. (CVE-2018-5383)

It was discovered that a heap buffer overflow existed in the Marvell Wireless LAN device driver for the Linux kernel. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-10126)

Andrei Vlad Lutas and Dan Lutas discovered that some x86 processors incorrectly handle SWAPGS instructions during speculative execution. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2019-1125)

It was discovered that the PowerPC dlpar implementation in the Linux kernel did not properly check for allocation errors in some situations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2019-12614)

It was discovered that a NULL pointer dereference vulnerabilty existed in the Near-field communication (NFC) implementation in the Linux kernel. An attacker could use this to cause a denial of service (system crash). (CVE-2019-12818)

It was discovered that the MDIO bus devices subsystem in the Linux kernel improperly dropped a device reference in an error condition, leading to a use-after-free. An attacker could use this to cause a denial of service (system crash). (CVE-2019-12819)

It was discovered that a NULL pointer dereference vulnerability existed in the Near-field communication (NFC) implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-12984)

Jann Horn discovered a use-after-free vulnerability in the Linux kernel when accessing LDT entries in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-13233)

Jann Horn discovered that the ptrace implementation in the Linux kernel did not properly record credentials in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly gain administrative privileges. (CVE-2019-13272)

It was discovered that the Empia EM28xx DVB USB device driver implementation in the Linux kernel contained a use-after-free vulnerability when disconnecting the device. An attacker could use this to cause a denial of service (system crash). (CVE-2019-2024)

It was discovered that the USB video device class implementation in the Linux kernel did not properly validate control bits, resulting in an out of bounds buffer read. A local attacker could use this to possibly expose sensitive information (kernel memory). (CVE-2019-2101)

It was discovered that the Marvell Wireless LAN device driver in the Linux kernel did not properly validate the BSS descriptor. A local attacker could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-3846)

It was discovered that the Appletalk IP encapsulation driver in the Linux kernel did not properly prevent kernel addresses from being copied to user space. A local attacker with the CAP_NET_ADMIN capability could use this to expose sensitive information. (CVE-2018-20511)

Update instructions:

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

Ubuntu 18.04 LTS:
linux-image-4.15.0-1021-oracle 4.15.0-1021.23
linux-image-4.15.0-1040-gcp 4.15.0-1040.42
linux-image-4.15.0-1040-gke 4.15.0-1040.42
linux-image-4.15.0-1042-kvm 4.15.0-1042.42
linux-image-4.15.0-1043-raspi2 4.15.0-1043.46
linux-image-4.15.0-1050-oem 4.15.0-1050.57
linux-image-4.15.0-1060-snapdragon 4.15.0-1060.66
linux-image-4.15.0-58-generic 4.15.0-58.64
linux-image-4.15.0-58-generic-lpae 4.15.0-58.64
linux-image-4.15.0-58-lowlatency 4.15.0-58.64
linux-image-gcp 4.15.0.1040.42
linux-image-generic 4.15.0.58.60
linux-image-generic-lpae 4.15.0.58.60
linux-image-gke 4.15.0.1040.43
linux-image-gke-4.15 4.15.0.1040.43
linux-image-kvm 4.15.0.1042.42
linux-image-lowlatency 4.15.0.58.60
linux-image-oem 4.15.0.1050.54
linux-image-oracle 4.15.0.1021.24
linux-image-powerpc-e500mc 4.15.0.58.60
linux-image-powerpc-smp 4.15.0.58.60
linux-image-powerpc64-emb 4.15.0.58.60
linux-image-powerpc64-smp 4.15.0.58.60
linux-image-raspi2 4.15.0.1043.41
linux-image-snapdragon 4.15.0.1060.63
linux-image-virtual 4.15.0.58.60

Ubuntu 16.04 LTS:
linux-image-4.15.0-1021-oracle 4.15.0-1021.23~16.04.1
linux-image-4.15.0-1040-gcp 4.15.0-1040.42~16.04.1
linux-image-4.15.0-1055-azure 4.15.0-1055.60
linux-image-4.15.0-58-generic 4.15.0-58.64~16.04.1
linux-image-4.15.0-58-generic-lpae 4.15.0-58.64~16.04.1
linux-image-4.15.0-58-lowlatency 4.15.0-58.64~16.04.1
linux-image-azure 4.15.0.1055.58
linux-image-gcp 4.15.0.1040.54
linux-image-generic-hwe-16.04 4.15.0.58.79
linux-image-generic-lpae-hwe-16.04 4.15.0.58.79
linux-image-gke 4.15.0.1040.54
linux-image-lowlatency-hwe-16.04 4.15.0.58.79
linux-image-oem 4.15.0.58.79
linux-image-oracle 4.15.0.1021.15
linux-image-virtual-hwe-16.04 4.15.0.58.79

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/4094-1
CVE-2018-13053, CVE-2018-13093, CVE-2018-13096, CVE-2018-13097,
CVE-2018-13098, CVE-2018-13099, CVE-2018-13100, CVE-2018-14609,
CVE-2018-14610, CVE-2018-14611, CVE-2018-14612, CVE-2018-14613,
CVE-2018-14614, CVE-2018-14615, CVE-2018-14616, CVE-2018-14617,
CVE-2018-16862, CVE-2018-20169, CVE-2018-20511, CVE-2018-20856,
CVE-2018-5383, CVE-2019-10126, CVE-2019-1125, CVE-2019-12614,
CVE-2019-12818, CVE-2019-12819, CVE-2019-12984, CVE-2019-13233,
CVE-2019-13272, CVE-2019-2024, CVE-2019-2101, CVE-2019-3846

Package Information:
https://launchpad.net/ubuntu/+source/linux/4.15.0-58.64
https://launchpad.net/ubuntu/+source/linux-gcp/4.15.0-1040.42
https://launchpad.net/ubuntu/+source/linux-gke-4.15/4.15.0-1040.42
https://launchpad.net/ubuntu/+source/linux-kvm/4.15.0-1042.42
https://launchpad.net/ubuntu/+source/linux-oem/4.15.0-1050.57
https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1021.23
https://launchpad.net/ubuntu/+source/linux-raspi2/4.15.0-1043.46
https://launchpad.net/ubuntu/+source/linux-snapdragon/4.15.0-1060.66
https://launchpad.net/ubuntu/+source/linux-azure/4.15.0-1055.60
https://launchpad.net/ubuntu/+source/linux-gcp/4.15.0-1040.42~16.04.1
https://launchpad.net/ubuntu/+source/linux-hwe/4.15.0-58.64~16.04.1
https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1021.23~16.04.1

Original Source

Url : http://www.ubuntu.com/usn/USN-4094-1

CWE : Common Weakness Enumeration

%idName
29 %CWE-476NULL Pointer Dereference
17 %CWE-125Out-of-bounds Read
14 %CWE-416Use After Free
9 %CWE-119Failure to Constrain Operations within the Bounds of a Memory Buffer
6 %CWE-787Out-of-bounds Write (CWE/SANS Top 25)
6 %CWE-369Divide By Zero
6 %CWE-200Information Exposure
3 %CWE-400Uncontrolled Resource Consumption ('Resource Exhaustion')
3 %CWE-362Race Condition
3 %CWE-310Cryptographic Issues
3 %CWE-264Permissions, Privileges, and Access Controls
3 %CWE-190Integer Overflow or Wraparound (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Os162
Os107
Os2
Os3
Os1
Os8
Os3262
Os3

Nessus® Vulnerability Scanner

DateDescription
2019-01-14Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2019-1145.nasl - Type : ACT_GATHER_INFO
2019-01-10Name : The remote Amazon Linux 2 host is missing a security update.
File : al2_ALAS-2019-1145.nasl - Type : ACT_GATHER_INFO
2019-01-03Name : The remote Fedora host is missing one or more security updates.
File : fedora_2018-3857a8b41a.nasl - Type : ACT_GATHER_INFO
2019-01-03Name : The remote Fedora host is missing a security update.
File : fedora_2018-50075276e8.nasl - Type : ACT_GATHER_INFO
2019-01-03Name : The remote Fedora host is missing one or more security updates.
File : fedora_2018-6e8c330d50.nasl - Type : ACT_GATHER_INFO
2019-01-03Name : The remote Fedora host is missing one or more security updates.
File : fedora_2018-87ba0312c2.nasl - Type : ACT_GATHER_INFO
2018-12-28Name : The remote EulerOS host is missing multiple security updates.
File : EulerOS_SA-2018-1433.nasl - Type : ACT_GATHER_INFO
2018-12-21Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2018-1133.nasl - Type : ACT_GATHER_INFO
2018-12-20Name : The remote Amazon Linux 2 host is missing a security update.
File : al2_ALAS-2018-1133.nasl - Type : ACT_GATHER_INFO
2018-10-18Name : The remote PhotonOS host is missing multiple security updates.
File : PhotonOS_PHSA-2018-2_0-0100.nasl - Type : ACT_GATHER_INFO
2018-10-18Name : The remote host is missing a macOS update that fixes multiple security vulner...
File : macos_10_14.nasl - Type : ACT_GATHER_INFO
2018-10-04Name : The remote Debian host is missing a security update.
File : debian_DLA-1531.nasl - Type : ACT_GATHER_INFO
2018-10-02Name : The remote Debian host is missing a security-related update.
File : debian_DSA-4308.nasl - Type : ACT_GATHER_INFO
2018-09-21Name : The remote PhotonOS host is missing multiple security updates.
File : PhotonOS_PHSA-2018-1_0-0184.nasl - Type : ACT_GATHER_INFO
2018-09-18Name : The remote Apple TV device is affected by multiple vulnerabilities.
File : appletv_12.nasl - Type : ACT_GATHER_INFO
2018-08-07Name : The remote Amazon Linux 2 host is missing a security update.
File : al2_ALAS-2018-1051.nasl - Type : ACT_GATHER_INFO
2018-08-07Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2018-1048.nasl - Type : ACT_GATHER_INFO
2018-07-24Name : The remote Fedora host is missing a security update.
File : fedora_2018-8484550fff.nasl - Type : ACT_GATHER_INFO
2018-07-17Name : The remote host is missing a macOS update that fixes multiple security vulner...
File : macos_10_13_6.nasl - Type : ACT_GATHER_INFO
2018-07-17Name : The remote host is missing a macOS or Mac OS X security update that fixes mul...
File : macosx_SecUpd2018-004.nasl - Type : ACT_GATHER_INFO
2018-06-05Name : The remote Apple TV device is affected by multiple vulnerabilities.
File : appletv_11_4.nasl - Type : ACT_GATHER_INFO
2018-06-05Name : The remote host is missing a macOS update that fixes multiple security vulner...
File : macos_10_13_5.nasl - Type : ACT_GATHER_INFO

Alert History

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0
DateInformations
2019-08-13 21:19:10
  • First insertion