Ubuntu 18.04 LTS : linux-azure, linux-gcp, linux-gke-5.0, linux-oem-osp1, linux-oracle-5.0 (USN-4325-1)

Low Nessus Plugin ID 135286

New! Vulnerability Priority Rating (VPR)

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VPR Score: 6

Synopsis

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

Description

It was discovered that the IPMI message handler implementation in the Linux kernel did not properly deallocate memory in certain situations.
A local attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19046)

Al Viro discovered that the vfs layer in the Linux kernel contained a use- after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). (CVE-2020-8428).

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 packages.

See Also

https://usn.ubuntu.com/4325-1/

Plugin Details

Severity: Low

ID: 135286

File Name: ubuntu_USN-4325-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2020/04/08

Updated: 2020/04/14

Dependencies: 12634, 122878

Risk Information

Risk Factor: Low

VPR Score: 6

CVSS Score Source: CVE-2020-8428

CVSS v2.0

Base Score: 3.6

Temporal Score: 2.7

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 7.1

Temporal Score: 6.2

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-5.0-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.0-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.0-gke, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.0-oem-osp1, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.0-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-gke-5.0, p-cpe:/a:canonical:ubuntu_linux:linux-image-oem-osp1, p-cpe:/a:canonical:ubuntu_linux:linux-image-oracle, cpe:/o:canonical:ubuntu_linux:18.04:-:lts

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2020/04/07

Vulnerability Publication Date: 2019/11/18

Reference Information

CVE: CVE-2019-19046, CVE-2020-8428

USN: 4325-1