CVE-2024-45777: grub2 Memory Corruption (CVSS 6.7)

Description

A flaw was found in grub2. The calculation of the translation buffer when reading a language .mo file in grub_gettext_getstr_from_position() may overflow, leading to a Out-of-bound write. This issue can be leveraged by an attacker to overwrite grub2's sensitive heap data, eventually leading to the circumvention of secure boot protections.

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CVSS v3.1 Score

6.7

MEDIUM

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

Weakness Type (CWE)

CWE-787 Out-of-bounds Write

Affected Products

Vendor	Product	Versions
gnu	grub2	< 2.12
redhat	openshift	All
redhat	enterprise_linux	All
redhat	enterprise_linux	All
redhat	enterprise_linux	All
redhat	enterprise_linux	All

References

Other References

https://access.redhat.com/errata/RHSA-2025:20532 https://access.redhat.com/security/cve/CVE-2024-45777 https://bugzilla.redhat.com/show_bug.cgi?id=2346343

Frequently Asked Questions

What is CVE-2024-45777? +

A flaw was found in grub2. The calculation of the translation buffer when reading a language .mo file in grub_gettext_getstr_from_position() may overflow, leading to a Out-of-bound write. This issue can be leveraged by an attacker to overwrite grub2's sensitive heap data, eventually leading to the circumvention of secure boot protections. It has a CVSS v3.1 base score of 6.7 (MEDIUM).

How severe is CVE-2024-45777? +

CVE-2024-45777 has a CVSS v3.1 score of 6.7 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-2024-45777? +

CVE-2024-45777 affects products from gnu, redhat, specifically: enterprise_linux, grub2, openshift. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-45777? +

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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