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Ubuntu 14.04 LTS : Linux kernel vulnerabilities (USN-2614-1)

medium Nessus Plugin ID 83760

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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-2614-1 advisory.

 Vincent Tondellier discovered an integer overflow in the Linux kernel's netfilter connection tracking accounting of loaded extensions. An attacker on the local area network (LAN) could potential exploit this flaw to cause a denial of service (system crash of targeted system). (CVE-2014-9715)

 Jan Beulich discovered the Xen virtual machine subsystem of the Linux kernel did not properly restrict access to PCI command registers. A local guest user could exploit this flaw to cause a denial of service (host crash). (CVE-2015-2150)

 A privilege escalation was discovered in the fork syscall via the int80 entry on 64 bit kernels with 32 bit emulation support. An unprivileged local attacker could exploit this flaw to increase their privileges on the system. (CVE-2015-2830)

 A memory corruption issue was discovered in AES decryption when using the Intel AES-NI accelerated code path. A remote attacker could exploit this flaw to cause a denial of service (system crash) or potentially escalate privileges on Intel base machines with AEC-GCM mode IPSec security association. (CVE-2015-3331)

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-2614-1

Plugin Details

Severity: Medium

ID: 83760

File Name: ubuntu_USN-2614-1.nasl

Version: 2.17

Type: local

Agent: unix

Published: 5/21/2015

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: 6.5

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 6.9

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

CVSS Score Source: CVE-2015-3331

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-2015-2150

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-53-powerpc64-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-53-powerpc-e500mc, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-53-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-53-powerpc-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-53-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-53-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-53-powerpc-e500, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-53-powerpc64-emb

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

Exploit Ease: No known exploits are available

Patch Publication Date: 5/20/2015

Vulnerability Publication Date: 3/12/2015

Reference Information

CVE: CVE-2014-9715, CVE-2015-2150, CVE-2015-2830, CVE-2015-3331

BID: 73014, 73699, 73953, 74235

USN: 2614-1