Azure Linux 3.0 Security Update: shim / shim-unsigned-aarch64 (CVE-2022-28737)

high Nessus Plugin ID 215391

Synopsis

The remote Azure Linux host is missing one or more security updates.

Description

The version of shim / shim-unsigned-aarch64 installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2022-28737 advisory.

- There's a possible overflow in handle_image() when shim tries to load and execute crafted EFI executables;
The handle_image() function takes into account the SizeOfRawData field from each section to be loaded. An attacker can leverage this to perform out-of-bound writes into memory. Arbitrary code execution is not discarded in such scenario. (CVE-2022-28737)

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 packages.

Plugin Details

Severity: High

ID: 215391

File Name: azure_linux_CVE-2022-28737.nasl

Version: 1.1

Type: local

Family: Azure Linux Local Security Checks

Published: 2/10/2025

Updated: 2/10/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2022-28737

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

Vulnerability Information

CPE: p-cpe:/a:microsoft:azure_linux:shim-unsigned-aarch64-debugsource, p-cpe:/a:microsoft:azure_linux:shim-unsigned-aarch64, p-cpe:/a:microsoft:azure_linux:shim, x-cpe:/o:microsoft:azure_linux, p-cpe:/a:microsoft:azure_linux:shim-unsigned-aarch64-debuginfo

Required KB Items: Host/local_checks_enabled, Host/AzureLinux/release, Host/AzureLinux/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 1/14/2025

Vulnerability Publication Date: 6/16/2022

Reference Information

CVE: CVE-2022-28737

Detections

Analytics