Ubuntu 14.04 LTS : Linux kernel vulnerability (USN-2643-1)

high Nessus Plugin ID 84210

Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 14.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-2643-1 advisory.

- The overlayfs implementation in the linux (aka Linux kernel) package before 3.19.0-21.21 in Ubuntu through 15.04 does not properly check permissions for file creation in the upper filesystem directory, which allows local users to obtain root access by leveraging a configuration in which overlayfs is permitted in an arbitrary mount namespace. (CVE-2015-1328)

Note that Nessus has not tested for this issue 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-2643-1

Plugin Details

Severity: High

ID: 84210

File Name: ubuntu_USN-2643-1.nasl

Version: 2.16

Type: local

Agent: unix

Published: 6/16/2015

Updated: 1/9/2024

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

Risk Information

VPR

Risk Factor: Critical

Score: 9.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

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

CVSS Score Source: CVE-2015-1328

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-55-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-55-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-55-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-55-powerpc-e500, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-55-powerpc-e500mc, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-55-powerpc-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-55-powerpc64-emb, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-55-powerpc64-smp, cpe:/o:canonical:ubuntu_linux:14.04:-:lts

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: 6/15/2015

Vulnerability Publication Date: 11/28/2016

Exploitable With

CANVAS (CANVAS)

Core Impact

Metasploit (Overlayfs Privilege Escalation)

Reference Information

CVE: CVE-2015-1328

USN: 2643-1