Bug 2273912 (CVE-2024-2312) - CVE-2024-2312 grub2: grub-efi crashes upon `exit`
Summary: CVE-2024-2312 grub2: grub-efi crashes upon `exit`
Keywords:
Status: NEW
Alias: CVE-2024-2312
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2273913 2273914 2273915
Blocks: 2273916
TreeView+ depends on / blocked
 
Reported: 2024-04-08 05:16 UTC by Avinash Hanwate
Modified: 2024-04-15 18:54 UTC (History)
1 user (show)

Fixed In Version:
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Doc Text:
A flaw was found in GRUB2. GRUB2 do not call the module fini functions on exit, leading to Debian/Ubuntu's peimage GRUB2 module leaving the UEFI system table hooks after exit. This issue leads to a use-after-free condition, possibly leading to a secure boot bypass.
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Description Avinash Hanwate 2024-04-08 05:16:49 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.

https://bugs.launchpad.net/ubuntu/+source/grub2-unsigned/+bug/2054127
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-2312
Comment 1 Avinash Hanwate 2024-04-08 05:18:33 UTC 
Created grub2 tracking bugs for this issue:

Affects: fedora-all [bug 2273914]


Created radare2 tracking bugs for this issue:

Affects: epel-all [bug 2273913]
Affects: fedora-all [bug 2273915]
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