{"id":"CVE-2021-3697","details":"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.","modified":"2026-03-14T11:03:21.384186Z","published":"2022-07-06T16:15:08.320Z","related":["ALSA-2022:5095","ALSA-2022:5099","SUSE-SU-2022:2035-1","SUSE-SU-2022:2036-1","SUSE-SU-2022:2037-1","SUSE-SU-2022:2038-1","SUSE-SU-2022:2039-1","SUSE-SU-2022:2041-1","SUSE-SU-2022:2064-1","SUSE-SU-2022:2073-1","SUSE-SU-2022:2074-1","openSUSE-SU-2024:12137-1"],"references":[{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202209-12"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20220930-0001/"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1991687"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/openshift/origin","events":[{"introduced":"0"},{"last_affected":"67617dd2edc465b7f51ffcbfcc7c29c93f9fc3da"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"1.0"}]}}],"versions":["v1.0.0"],"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"2.00"},{"fixed":"2.12"}]},{"events":[{"introduced":"0"},{"last_affected":"3.0"}]},{"events":[{"introduced":"0"},{"last_affected":"8.0"}]},{"events":[{"introduced":"0"},{"last_affected":"8.1"}]},{"events":[{"introduced":"0"},{"last_affected":"8.4"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0"}]},{"events":[{"introduced":"0"},{"last_affected":"8.2"}]},{"events":[{"introduced":"0"},{"last_affected":"8.4"}]},{"events":[{"introduced":"0"},{"last_affected":"8.6"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0"}]},{"events":[{"introduced":"0"},{"last_affected":"8.0"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0"}]},{"events":[{"introduced":"0"},{"last_affected":"8.2"}]},{"events":[{"introduced":"0"},{"last_affected":"8.4"}]},{"events":[{"introduced":"0"},{"last_affected":"8.6"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0"}]},{"events":[{"introduced":"0"},{"last_affected":"8.2"}]},{"events":[{"introduced":"0"},{"last_affected":"8.4"}]},{"events":[{"introduced":"0"},{"last_affected":"8.6"}]},{"events":[{"introduced":"0"},{"last_affected":"8.1"}]},{"events":[{"introduced":"0"},{"last_affected":"8.2"}]},{"events":[{"introduced":"0"},{"last_affected":"8.4"}]},{"events":[{"introduced":"0"},{"last_affected":"8.6"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0"}]},{"events":[{"introduced":"0"},{"last_affected":"8.2"}]},{"events":[{"introduced":"0"},{"last_affected":"8.4"}]},{"events":[{"introduced":"0"},{"last_affected":"8.6"}]},{"events":[{"introduced":"0"},{"last_affected":"4.6"}]},{"events":[{"introduced":"0"},{"last_affected":"4.9"}]},{"events":[{"introduced":"0"},{"last_affected":"4.10"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3697.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}