CVE-2024-45777: Grub2: grub-core/gettext: integer overflow leads to heap oob write.
First published: Tue Feb 18 2025(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| CentOS Grub2-pc-modules |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2024-45777?
CVE-2024-45777 has been classified as a critical severity vulnerability due to the potential for an attacker to overwrite sensitive heap data.
How do I fix CVE-2024-45777?
To fix CVE-2024-45777, update to the latest stable version of GNU GRUB 2 that addresses this vulnerability.
What could be the impact of exploiting CVE-2024-45777?
Exploiting CVE-2024-45777 may allow an attacker to perform arbitrary code execution by overwriting critical memory areas in GRUB 2.
Which versions of GRUB 2 are affected by CVE-2024-45777?
CVE-2024-45777 affects certain versions of GNU GRUB 2 prior to the patch addressed in the latest release.
How can an attacker exploit CVE-2024-45777?
An attacker can exploit CVE-2024-45777 by manipulating the language .mo files processed by GRUB 2, leading to a potential out-of-bounds write.
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