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Ubuntu 14.04 LTS : Linux kernel vulnerabilities (USN-3933-1)

high Nessus Plugin ID 123682

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Synopsis

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

Description

The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3933-1 advisory.

 It was discovered that an information leak vulnerability existed in the Bluetooth implementation of the Linux kernel. An attacker within Bluetooth range could possibly expose sensitive information (kernel memory). (CVE-2017-1000410)

 It was discovered that the USB serial device driver in the Linux kernel did not properly validate baud rate settings when debugging is enabled. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-18360)

 Mathias Payer and Hui Peng discovered a use-after-free vulnerability in the Advanced Linux Sound Architecture (ALSA) subsystem. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2018-19824)

 Shlomi Oberman, Yuli Shapiro, and Ran Menscher discovered an information leak in the Bluetooth implementation of the Linux kernel. An attacker within Bluetooth range could use this to expose sensitive information (kernel memory). (CVE-2019-3459, CVE-2019-3460)

 Jann Horn discovered that the KVM implementation in the Linux kernel contained a use-after-free vulnerability. An attacker in a guest VM with access to /dev/kvm could use this to cause a denial of service (guest VM crash). (CVE-2019-6974)

 Felix Wilhelm discovered that an information leak vulnerability existed in the KVM subsystem of the Linux kernel, when nested virtualization is used. A local attacker could use this to expose sensitive information (host system memory to a guest VM). (CVE-2019-7222)

 Jann Horn discovered that the mmap implementation in the Linux kernel did not properly check for the mmap minimum address in some situations. A local attacker could use this to assist exploiting a kernel NULL pointer dereference vulnerability. (CVE-2019-9213)

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-3933-1

Plugin Details

Severity: High

ID: 123682

File Name: ubuntu_USN-3933-1.nasl

Version: 1.10

Type: local

Agent: unix

Published: 4/3/2019

Updated: 8/27/2024

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

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.6

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

CVSS Score Source: CVE-2019-6974

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.5

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

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-168-powerpc-e500, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-168-powerpc-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-168-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-168-powerpc-e500mc, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-168-powerpc64-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-168-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-168-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-168-powerpc64-emb

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: 4/2/2019

Vulnerability Publication Date: 12/7/2017

Exploitable With

Metasploit (Reliable Datagram Sockets (RDS) rds_atomic_free_op NULL pointer dereference Privilege Escalation)

Reference Information

CVE: CVE-2017-1000410, CVE-2017-18360, CVE-2018-19824, CVE-2019-3459, CVE-2019-3460, CVE-2019-6974, CVE-2019-7222, CVE-2019-9213

USN: 3933-1