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Ubuntu 14.04 LTS : Linux kernel vulnerabilities (USN-3470-1)

high Nessus Plugin ID 104322

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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-3470-1 advisory.

 Qian Zhang discovered a heap-based buffer overflow in the tipc_msg_build() function in the Linux kernel. A local attacker could use to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. (CVE-2016-8632)

 Dmitry Vyukov discovered that a race condition existed in the timerfd subsystem of the Linux kernel when handling might_cancel queuing. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-10661)

 It was discovered that the Flash-Friendly File System (f2fs) implementation in the Linux kernel did not properly validate superblock metadata. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-10662, CVE-2017-10663)

 Anthony Perard discovered that the Xen virtual block driver did not properly initialize some data structures before passing them to user space. A local attacker in a guest VM could use this to expose sensitive information from the host OS or other guest VMs. (CVE-2017-10911)

 It was discovered that a use-after-free vulnerability existed in the POSIX message queue implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-11176)

 Dave Chinner discovered that the XFS filesystem did not enforce that the realtime inode flag was settable only on filesystems on a realtime device. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-14340)

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-3470-1

Plugin Details

Severity: High

ID: 104322

File Name: ubuntu_USN-3470-1.nasl

Version: 3.12

Type: local

Agent: unix

Published: 11/1/2017

Updated: 8/27/2024

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

Risk Information

VPR

Risk Factor: High

Score: 8.9

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 6.6

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

CVSS Score Source: CVE-2017-10661

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.5

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:H/RL:O/RC:C

CVSS Score Source: CVE-2017-11176

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-135-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-135-powerpc64-emb, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-135-powerpc-e500mc, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-135-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-135-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-135-powerpc-e500, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-135-powerpc64-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-135-powerpc-smp

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/31/2017

Vulnerability Publication Date: 11/28/2016

Reference Information

CVE: CVE-2016-8632, CVE-2017-10661, CVE-2017-10662, CVE-2017-10663, CVE-2017-10911, CVE-2017-11176, CVE-2017-14340

USN: 3470-1