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Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-4579-1)

high Nessus Plugin ID 141447

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4579-1 advisory.

 Hadar Manor discovered that the DCCP protocol implementation in the Linux kernel improperly handled socket reuse, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2020-16119)

 Wen Xu discovered that the XFS file system in the Linux kernel did not properly validate inode metadata in some situations. An attacker could use this to construct a malicious XFS image that, when mounted, could cause a denial of service (system crash). (CVE-2018-10322)

 Jay Shin discovered that the ext4 file system implementation in the Linux kernel did not properly handle directory access with broken indexing, leading to an out-of-bounds read vulnerability. A local attacker could use this to cause a denial of service (system crash). (CVE-2020-14314)

 It was discovered that a race condition existed in the hugetlb sysctl implementation in the Linux kernel.
 A privileged attacker could use this to cause a denial of service (system crash). (CVE-2020-25285)

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-4579-1

Plugin Details

Severity: High

ID: 141447

File Name: ubuntu_USN-4579-1.nasl

Version: 1.8

Type: local

Agent: unix

Published: 10/14/2020

Updated: 8/29/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.6

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

CVSS Score Source: CVE-2020-16119

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-193-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-193-generic, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-1082-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-1117-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-193-powerpc-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-1145-snapdragon, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-193-powerpc64-emb, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-193-powerpc64-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-1141-raspi2, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-193-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-193-powerpc-e500mc

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: 10/14/2020

Vulnerability Publication Date: 4/24/2018

Reference Information

CVE: CVE-2018-10322, CVE-2020-14314, CVE-2020-16119, CVE-2020-25285

BID: 103960

USN: 4579-1