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Ubuntu 20.04 LTS : EDK II vulnerabilities (USN-4923-1)

high Nessus Plugin ID 148855

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Synopsis

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

Description

The remote Ubuntu 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4923-1 advisory.

 Laszlo Ersek discovered that EDK II incorrectly handled recursion. A remote attacker could possibly use this issue to cause EDK II to consume resources, leading to a denial of service. (CVE-2021-28210)

 Satoshi Tanda discovered that EDK II incorrectly handled decompressing certain images. A remote attacker could use this issue to cause EDK II to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2021-28211)

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 packages.

See Also

https://ubuntu.com/security/notices/USN-4923-1

Plugin Details

Severity: High

ID: 148855

File Name: ubuntu_USN-4923-1.nasl

Version: 1.7

Type: local

Agent: unix

Published: 4/20/2021

Updated: 8/28/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

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-2021-28211

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

CVSS Score Source: CVE-2021-28210

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:ovmf, p-cpe:/a:canonical:ubuntu_linux:qemu-efi, p-cpe:/a:canonical:ubuntu_linux:qemu-efi-arm, p-cpe:/a:canonical:ubuntu_linux:qemu-efi-aarch64

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: 4/20/2021

Vulnerability Publication Date: 4/20/2021

Reference Information

CVE: CVE-2021-28210, CVE-2021-28211

USN: 4923-1