Advisory Published
Updated

CVE-2024-56573: efi/libstub: Free correct pointer on failure

First published: Fri Dec 27 2024(Updated: )

In the Linux kernel, the following vulnerability has been resolved: efi/libstub: Free correct pointer on failure cmdline_ptr is an out parameter, which is not allocated by the function itself, and likely points into the caller's stack. cmdline refers to the pool allocation that should be freed when cleaning up after a failure, so pass this instead to free_pool().

Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Affected SoftwareAffected VersionHow to fix
Linux Kernel
debian/linux
5.10.223-1
5.10.234-1
6.1.129-1
6.1.128-1
6.12.20-1
6.12.21-1

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Frequently Asked Questions

  • What is the severity of CVE-2024-56573?

    CVE-2024-56573 has been classified as a moderate severity vulnerability in the Linux kernel.

  • What are the potential impacts of CVE-2024-56573?

    CVE-2024-56573 can lead to an out-of-bounds read operation that may impact system stability.

  • How do I fix CVE-2024-56573?

    To fix CVE-2024-56573, ensure you update to the latest version of the Linux kernel where the vulnerability has been patched.

  • Which versions of the Linux kernel are affected by CVE-2024-56573?

    CVE-2024-56573 affects multiple versions of the Linux kernel prior to the release that includes the fix.

  • Where can I find more technical details about CVE-2024-56573?

    Technical details about CVE-2024-56573 can typically be found in the changelogs or official patch notes from the Linux kernel repository.

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