CVE-2024-45776: Grub2: grub-core/gettext: integer overflow leads to heap oob write and read.
First published: Tue Jan 21 2025(Updated: )
When reading language .mo file in grub_mofile_open(), grub2 fails to verify to a integer overflow when allocating its internal buffer. A crafted .mo file may lead to the buffer size calculation to overflow leading to Out-of-bound reads and writes. An attacker may leverage this flaw to leak sensitive data or overwrite critical data possibly leading to the circumvention of secure boot protections.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GRUB 2 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2024-45776?
CVE-2024-45776 has been classified as a high severity vulnerability due to the potential for out-of-bounds reads and writes.
How do I fix CVE-2024-45776?
To remediate CVE-2024-45776, update to the latest version of GRUB2 that includes the patch addressing this vulnerability.
What systems are affected by CVE-2024-45776?
CVE-2024-45776 affects systems using the GNU GRUB2 bootloader, particularly those processing crafted .mo files.
What vulnerabilities arise from CVE-2024-45776?
CVE-2024-45776 can lead to potential out-of-bounds reads and writes, allowing an attacker to exploit the buffer overflow.
When was CVE-2024-45776 reported?
CVE-2024-45776 was reported in 2024, highlighting a critical flaw in the buffer management of GRUB2.
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