Bug 2337461 (CVE-2024-45774)

Summary: CVE-2024-45774 grub2: reader/jpeg: Heap OOB Write during JPEG parsing
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: bootloader-eng-team, jaredz, lsandova, mlewando, nfrayer, pjanda, pjones, rebus, security-response-team
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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A flaw was found in grub2. A specially crafted JPEG file can cause the JPEG parser of grub2 to incorrectly check the bounds of its internal buffers, resulting in an out-of-bounds write. The possibility of overwriting sensitive information to bypass secure boot protections is not discarded.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On: 2346372, 2346369, 2346370, 2346371, 2346373    
Bug Blocks:    
Deadline: 2025-02-18   

Description OSIDB Bzimport 2025-01-13 22:40:04 UTC 
Extra SOF0 marker in JPEG file may lead to a out-of-bounds write. An attacker may leverage this by crafting a malicious JPEG file, leading the grub's JPEG parser to fail the bounds checking in its internal buffer resulting in a out-of-bounds memory write. The possibility of overwriting sensitive information in order to bypass secure boot protections are not discarded.
Comment 4 Michal Ambroz 2025-02-24 13:35:34 UTC 
https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.html
Comment 6 errata-xmlrpc 2025-05-13 08:41:06 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:6990 https://access.redhat.com/errata/RHSA-2025:6990