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Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4135-1)

high Nessus Plugin ID 129049

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 16.04 LTS / 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4135-1 advisory.

 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)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected kernel package.

See Also

https://ubuntu.com/security/notices/USN-4135-1

Plugin Details

Severity: High

ID: 129049

File Name: ubuntu_USN-4135-1.nasl

Version: 1.9

Type: local

Agent: unix

Published: 9/19/2019

Updated: 8/27/2024

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

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

CVSS Score Source: CVE-2019-14835

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-5.0.0-29-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1044-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-1122-raspi2, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.0.0-1020-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-164-powerpc64-emb, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-64-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-164-powerpc-e500mc, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-164-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1064-snapdragon, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.0.0-29-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-164-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.0.0-29-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1056-oem, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1050-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.0.0-1017-gke, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-164-powerpc64-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-1058-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1047-raspi2, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-164-powerpc-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1059-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-1094-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-64-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1046-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-64-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-164-generic-lpae, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1025-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-1126-snapdragon

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/18/2019

Vulnerability Publication Date: 9/13/2019

Reference Information

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

USN: 4135-1