Ubuntu 18.04 LTS : linux-azure vulnerabilities (USN-3678-3)

High Nessus Plugin ID 110513

Synopsis

The remote Ubuntu host is missing one or more security-related
patches.

Description

Wen Xu discovered that the ext4 filesystem implementation in the Linux
kernel did not properly handle corrupted meta data in some situations.
An attacker could use this to specially craft an ext4 file system that
caused a denial of service (system crash) when mounted.
(CVE-2018-1092)

It was discovered that the 802.11 software simulator implementation in
the Linux kernel contained a memory leak when handling certain error
conditions. A local attacker could possibly use this to cause a denial
of service (memory exhaustion). (CVE-2018-8087)

It was discovered that a memory leak existed in the Serial Attached
SCSI (SAS) implementation in the Linux kernel. A physically proximate
attacker could use this to cause a denial of service (memory
exhaustion). (CVE-2018-10021).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

Solution

Update the affected linux-image-4.15-azure and / or linux-image-azure
packages.

See Also

https://usn.ubuntu.com/3678-3/

Plugin Details

Severity: High

ID: 110513

File Name: ubuntu_USN-3678-3.nasl

Version: 1.3

Type: local

Agent: unix

Published: 2018/06/13

Modified: 2018/12/01

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.1

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

CVSS v3.0

Base Score: 5.5

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-azure, cpe:/o:canonical:ubuntu_linux:18.04:-:lts

Patch Publication Date: 2018/06/12

Reference Information

CVE: CVE-2018-10021, CVE-2018-1092, CVE-2018-8087

USN: 3678-3