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Ubuntu 14.04 LTS : Linux kernel vulnerabilities (USN-2748-1)

medium Nessus Plugin ID 86190

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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-2748-1 advisory.

 Benjamin Randazzo discovered an information leak in the md (multiple device) driver when the bitmap_info.file is disabled. A local privileged attacker could use this to obtain sensitive information from the kernel. (CVE-2015-5697)

 Marc-Andr Lureau discovered that the vhost driver did not properly release the userspace provided log file descriptor. A privileged attacker could use this to cause a denial of service (resource exhaustion).
 (CVE-2015-6252)

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-2748-1

Plugin Details

Severity: Medium

ID: 86190

File Name: ubuntu_USN-2748-1.nasl

Version: 2.14

Type: local

Agent: unix

Published: 9/29/2015

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: Medium

Score: 5.2

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2015-5697

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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

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

CVSS Score Source: CVE-2015-6252

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-65-powerpc-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-65-powerpc-e500, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-65-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-65-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-65-powerpc64-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-65-powerpc64-emb, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-65-powerpc-e500mc, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-65-generic

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/28/2015

Vulnerability Publication Date: 8/31/2015

Reference Information

CVE: CVE-2015-5697, CVE-2015-6252

USN: 2748-1