Ubuntu 14.04 LTS : Linux kernel vulnerabilities (USN-2794-1)

medium Nessus Plugin ID 86785

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-2794-1 advisory.

- The prepend_path function in fs/dcache.c in the Linux kernel before 4.2.4 does not properly handle rename actions inside a bind mount, which allows local users to bypass an intended container protection mechanism by renaming a directory, related to a double-chroot attack. (CVE-2015-2925)

- drivers/usb/serial/whiteheat.c in the Linux kernel before 4.2.4 allows physically proximate attackers to cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact via a crafted USB device. NOTE: this ID was incorrectly used for an Apache Cordova issue that has the correct ID of CVE-2015-8320. (CVE-2015-5257)

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-2794-1

Plugin Details

Severity: Medium

ID: 86785

File Name: ubuntu_USN-2794-1.nasl

Version: 2.13

Type: local

Agent: unix

Published: 11/6/2015

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: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.9

Temporal Score: 5.4

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

CVSS Score Source: CVE-2015-2925

CVSS v3

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 6.1

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

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

CVSS Score Source: CVE-2015-5257

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-67-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-67-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-67-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-67-powerpc-e500, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-67-powerpc-e500mc, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-67-powerpc-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-67-powerpc64-emb, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-67-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: 11/5/2015

Vulnerability Publication Date: 11/16/2015

Reference Information

CVE: CVE-2015-2925, CVE-2015-5257

USN: 2794-1