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Ubuntu 14.04 LTS : Linux kernel vulnerabilities (USN-3620-1)

critical Nessus Plugin ID 108843

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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-3620-1 advisory.

 It was discovered that the netlink 802.11 configuration interface in the Linux kernel did not properly validate some attributes passed from userspace. A local attacker with the CAP_NET_ADMIN privilege could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-11089)

 It was discovered that a buffer overflow existed in the ioctl handling code in the ISDN subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-12762)

 It was discovered that the netfilter component of the Linux did not properly restrict access to the connection tracking helpers list. A local attacker could use this to bypass intended access restrictions.
 (CVE-2017-17448)

 Dmitry Vyukov discovered that the KVM implementation in the Linux kernel contained an out-of-bounds read when handling memory-mapped I/O. A local attacker could use this to expose sensitive information.
 (CVE-2017-17741)

 It was discovered that the Salsa20 encryption algorithm implementations in the Linux kernel did not properly handle zero-length inputs. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-17805)

 It was discovered that the keyring implementation in the Linux kernel did not properly check permissions when a key request was performed on a task's default keyring. A local attacker could use this to add keys to unauthorized keyrings. (CVE-2017-17807)

 It was discovered that the Broadcom NetXtremeII ethernet driver in the Linux kernel did not properly validate Generic Segment Offload (GSO) packet sizes. An attacker could use this to cause a denial of service (interface unavailability). (CVE-2018-1000026)

 It was discovered that the Reliable Datagram Socket (RDS) implementation in the Linux kernel contained an out-of-bounds write during RDMA page allocation. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-5332)

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-3620-1

Plugin Details

Severity: Critical

ID: 108843

File Name: ubuntu_USN-3620-1.nasl

Version: 1.9

Type: local

Agent: unix

Published: 4/5/2018

Updated: 8/27/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2017-12762

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-144-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-144-powerpc-e500, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-144-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-144-powerpc64-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-144-powerpc64-emb, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-144-powerpc-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-144-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-144-powerpc-e500mc

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/4/2018

Vulnerability Publication Date: 8/9/2017

Reference Information

CVE: CVE-2017-11089, CVE-2017-12762, CVE-2017-17448, CVE-2017-17741, CVE-2017-17805, CVE-2017-17807, CVE-2018-1000026, CVE-2018-5332

USN: 3620-1