A crafted JPEG image may lead the JPEG reader to underflow its data pointer, allowing user-controlled data to be written in heap. To a successful to be performed the attacker needs to perform some triage over the heap layout and craft an image with a malicious format and payload. This vulnerability can lead to data corruption and eventual code execution or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12.
Metrics
Affected Vendors & Products
References
History
No history.
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2024-08-03T17:01:08.539Z
Reserved: 2021-08-10T00:00:00
Link: CVE-2021-3697
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No data.
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Status : Modified
Published: 2022-07-06T16:15:08.320
Modified: 2024-11-21T06:22:10.820
Link: CVE-2021-3697
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