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Ubuntu 18.04 LTS : Linux kernel regression (USN-4369-2)

low Nessus Plugin ID 136966

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Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 18.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-4369-2 advisory.

 USN-4369-1 fixed vulnerabilities in the 5.3 Linux kernel. Unfortunately, that update introduced a regression in overlayfs. This update corrects the problem.

 We apologize for the inconvenience.

 Original advisory details:

 It was discovered that the btrfs implementation in the Linux kernel did not

 properly detect that a block was marked dirty in some situations. An

 attacker could use this to specially craft a file system image that, when

 unmounted, could cause a denial of service (system crash). (CVE-2019-19377)

 Tristan Madani discovered that the file locking implementation in the Linux

 kernel contained a race condition. A local attacker could possibly use this

 to cause a denial of service or expose sensitive information.

 (CVE-2019-19769)

 It was discovered that the Serial CAN interface driver in the Linux kernel

 did not properly initialize data. A local attacker could use this to expose

 sensitive information (kernel memory). (CVE-2020-11494)

 It was discovered that the linux kernel did not properly validate certain

 mount options to the tmpfs virtual memory file system. A local attacker

 with the ability to specify mount options could use this to cause a denial

 of service (system crash). (CVE-2020-11565)

 It was discovered that the OV51x USB Camera device driver in the Linux

 kernel did not properly validate device metadata. A physically proximate

 attacker could use this to cause a denial of service (system crash).

 (CVE-2020-11608)

 It was discovered that the STV06XX USB Camera device driver in the Linux

 kernel did not properly validate device metadata. A physically proximate

 attacker could use this to cause a denial of service (system crash).

 (CVE-2020-11609)

 It was discovered that the Xirlink C-It USB Camera device driver in the

 Linux kernel did not properly validate device metadata. A physically

 proximate attacker could use this to cause a denial of service (system

 crash). (CVE-2020-11668)

 It was discovered that the block layer in the Linux kernel contained a race

 condition leading to a use-after-free vulnerability. A local attacker could

 possibly use this to cause a denial of service (system crash) or execute

 arbitrary code. (CVE-2020-12657)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for this issue 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-4369-2

Plugin Details

Severity: Low

ID: 136966

File Name: ubuntu_USN-4369-2.nasl

Version: 1.11

Type: local

Agent: unix

Published: 5/29/2020

Updated: 8/29/2024

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.3.0-1026-raspi2

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: 5/28/2020

Vulnerability Publication Date: 11/29/2019

Reference Information

USN: 4369-2