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.
MITRE
Status: PUBLISHED
Assigner: redhat
Published: 2022-07-06T15:06:47
Updated: 2024-08-03T17:01:08.539Z
Reserved: 2021-08-10T00:00:00
Link: CVE-2021-3697
Vulnrichment
No data.
NVD
Status : Analyzed
Published: 2022-07-06T16:15:08.320
Modified: 2023-09-13T16:15:06.283
Link: CVE-2021-3697
Redhat