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
                        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
                        Vulnrichment
                    No data.
 NVD
                        NVD
                    Status : Modified
Published: 2022-07-06T16:15:08.320
Modified: 2024-11-21T06:22:10.820
Link: CVE-2021-3697
 Redhat
                        Redhat