Bug 1222868 (CVE-2024-2312) - VUL-0: CVE-2024-2312: grub2: grub-efi crashes upon `exit`
Summary: VUL-0: CVE-2024-2312: grub2: grub-efi crashes upon `exit`
Status: NEW
Alias: CVE-2024-2312
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other Other
: P3 - Medium : Normal
Target Milestone: ---
Assignee: Bootloader Maintainers
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/400528/
Whiteboard: CVSSv3.1:SUSE:CVE-2024-2312:6.7:(AV:L...
Keywords:
Depends on:
Blocks:
 
Reported: 2024-04-16 07:12 UTC by SMASH SMASH
Modified: 2024-05-02 05:46 UTC (History)
2 users (show)

See Also:
Found By: Security Response Team
Services Priority:
Business Priority:
Blocker: ---
Marketing QA Status: ---
IT Deployment: ---

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Description SMASH SMASH 2024-04-16 07:12:33 UTC 
GRUB2 does not call the module fini functions on exit, leading to Debian/Ubuntu's peimage GRUB2 module leaving UEFI system table hooks after exit. This lead to a use-after-free condition, and could possibly lead to secure boot bypass.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-2312
https://www.cve.org/CVERecord?id=CVE-2024-2312
https://bugs.launchpad.net/ubuntu/+source/grub2-unsigned/+bug/2054127
https://bugzilla.redhat.com/show_bug.cgi?id=2273912