CVE-2021-3697

State: Published
Severity: Not scored
Published: Jul 6, 2022
Updated: Aug 3, 2024
Reserved: Aug 10, 2021

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.

Scores

The record has no CVSS score.

Weaknesses

CWE-787

Affected Products

Product	Versions
grub2n/a	grub-2.06Affected

References

https://bugzilla.redhat.com/show_bug.cgi?id=1991687
GLSA-202209-12vendor-advisory
https://security.netapp.com/advisory/ntap-20220930-0001/

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