CVE-2023-40551

MEDIUM
Published Jan 29, 2024 Modified Nov 21, 2024 CWE-125

Description

A flaw was found in the MZ binary format in Shim. An out-of-bounds read may occur, leading to a crash or possible exposure of sensitive data during the system's boot phase.

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CVSS v3.1 Score

5.1
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H

Weakness Type (CWE)

CWE-125 Out-of-bounds Read

Affected Products

Vendor Product
redhat shim
fedoraproject fedora
redhat enterprise_linux
redhat enterprise_linux

References

Frequently Asked Questions

What is CVE-2023-40551? +
A flaw was found in the MZ binary format in Shim. An out-of-bounds read may occur, leading to a crash or possible exposure of sensitive data during the system's boot phase. It has a CVSS v3.1 base score of 5.1 (MEDIUM).
How severe is CVE-2023-40551? +
CVE-2023-40551 has a CVSS v3.1 score of 5.1 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2023-40551? +
CVE-2023-40551 affects products from fedoraproject, redhat, specifically: enterprise_linux, fedora, shim. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2023-40551? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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