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Affected Component
Analysis
grub
Exploitable
Name
CVE-2021-3697
Description
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.
Published Date
Updated Date
Workaround
-
Advisories
https://bugzilla.redhat.com/show_bug.cgi?id=1991687Issue Tracking
https://security.gentoo.org/glsa/202209-12Third Party Advisory
https://security.netapp.com/advisory/ntap-20220930-0001/Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1991687Issue Tracking
https://security.gentoo.org/glsa/202209-12Third Party Advisory
https://security.netapp.com/advisory/ntap-20220930-0001/Third Party Advisory
Analysis#
Vulnerability Ratings#
7
CVSSv31
4.4
CVSSv2