CVE-2024-45775: Grub2: commands/extcmd: missing check for failed allocation
First published: Mon Jan 13 2025(Updated: )
A flaw was found in grub2 where the grub_extcmd_dispatcher() function calls grub_arg_list_alloc() to allocate memory for the grub's argument list. However, it fails to check in case the memory allocation fails. Once the allocation fails, a NULL point will be processed by the parse_option() function, leading grub to crash or, in some rare scenarios, corrupt the IVT data.
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-2024-45775?
CVE-2024-45775 has been designated as a medium severity vulnerability.
How do I fix CVE-2024-45775?
To fix CVE-2024-45775, update to the latest version of GNU GRUB2 that includes the security patch addressing this vulnerability.
What systems are affected by CVE-2024-45775?
CVE-2024-45775 affects systems running GNU GRUB2 without the proper memory allocation checks.
What type of vulnerability is CVE-2024-45775?
CVE-2024-45775 is a memory allocation failure vulnerability that can lead to processing a NULL pointer.
Is CVE-2024-45775 exploitable?
Yes, CVE-2024-45775 is potentially exploitable due to the lack of checks on memory allocation failures.
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