Ubuntu 16.04 LTS / 18.04 LTS / 19.04 : linux, linux-aws, linux-aws-hwe, linux-azure, linux-gcp, (USN-4135-1)

High Nessus Plugin ID 129049

Synopsis

The remote Ubuntu host is missing one or more security-related patches.

Description

Peter Pi discovered a buffer overflow in the virtio network backend (vhost_net) implementation in the Linux kernel. An attacker in a guest may be able to use this to cause a denial of service (host OS crash) or possibly execute arbitrary code in the host OS. (CVE-2019-14835)

It was discovered that the Linux kernel on PowerPC architectures did not properly handle Facility Unavailable exceptions in some situations. A local attacker could use this to expose sensitive information. (CVE-2019-15030)

It was discovered that the Linux kernel on PowerPC architectures did not properly handle exceptions on interrupts in some situations. A local attacker could use this to expose sensitive information.
(CVE-2019-15031).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected packages.

See Also

https://usn.ubuntu.com/4135-1/

Plugin Details

Severity: High

ID: 129049

File Name: ubuntu_USN-4135-1.nasl

Version: 1.3

Type: local

Agent: unix

Published: 2019/09/19

Updated: 2019/12/27

Dependencies: 12634, 122878

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-gke, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-oem, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-raspi2, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-snapdragon, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4-raspi2, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4-snapdragon, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.0-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.0-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.0-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.0-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.0-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.0-gke, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.0-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.0-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.0-raspi2, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.0-snapdragon, p-cpe:/a:canonical:ubuntu_linux:linux-image-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-aws-hwe, p-cpe:/a:canonical:ubuntu_linux:linux-image-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-hwe-16.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-lpae-hwe-16.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-lpae-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-gke, p-cpe:/a:canonical:ubuntu_linux:linux-image-gke-4.15, p-cpe:/a:canonical:ubuntu_linux:linux-image-gke-5.0, p-cpe:/a:canonical:ubuntu_linux:linux-image-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-image-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-lowlatency-hwe-16.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-lowlatency-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-oem, p-cpe:/a:canonical:ubuntu_linux:linux-image-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-raspi2, p-cpe:/a:canonical:ubuntu_linux:linux-image-snapdragon, p-cpe:/a:canonical:ubuntu_linux:linux-image-snapdragon-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-virtual, p-cpe:/a:canonical:ubuntu_linux:linux-image-virtual-hwe-16.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-virtual-hwe-18.04, cpe:/o:canonical:ubuntu_linux:16.04, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:19.04

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 2019/09/18

Vulnerability Publication Date: 2019/09/13

Reference Information

CVE: CVE-2019-14835, CVE-2019-15030, CVE-2019-15031

USN: 4135-1