Medium [CVE-2024-45774] Grub2: reader/jpeg: heap oob write during jpeg parsing
This medium-severity Red Hat Linux advisory covers CVE-2024-45774 affecting Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
VulniPulse record published
Summary
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. Red Hat has classified this vulnerability with a Moderate severity due to the high privileges needed to exploit this flaw.
Additionally, the attack vector is considered local, further limiting exploitation of this issue. Weakness: CWE-787.
Affected Red Hat products: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat OpenShift Container Platform 4. Red Hat lists Red Hat Enterprise Linux 10 as not affected.
Will not fix / out of support: Red Hat Enterprise Linux 7. Red Hat fixing advisory: RHSA-2025:6990.
Affected products named by the advisory: Red Hat package: grub2.
Is CVE-2024-45774 exploited?
No exploitation is reported in the sources VulniPulse tracks: CVE-2024-45774 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.
How do I fix CVE-2024-45774?
Upgrade to a fixed release named by Red Hat:
- grub2-1:2.06-104.el9_6
- RHSA-2025:6990
Confirm against the vendor advisory before you patch.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.
Official advisory · high-confidence parse· fetched 20 days ago·verify at source
- grub2-1:2.06-104.el9_6
- RHSA-2025:6990
Official advisory · high-confidence parse· fetched 20 days ago·verify at source
Mitigation checklist
- Do not process untrusted JPEG files with grub2.
Official advisory · high-confidence parse· fetched 20 days ago·verify at source
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