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CVE-2021-3697 Details
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.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1991687 | CVE | Issue TrackingThird Party Advisory |
| https://security.gentoo.org/glsa/202209-12 | CVE | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20220930-0001/ | CVE | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1991687 | [email protected] | Issue TrackingThird Party Advisory |
| https://security.gentoo.org/glsa/202209-12 | [email protected] | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20220930-0001/ | [email protected] | Third Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-787 | Out-of-bounds Write | [email protected] |
| CWE-787 | Out-of-bounds Write | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| gnu grub2 | >= 2.00, < 2.12 |
CPE
Remediation
| |
| redhat developer tools | 1.0 |
CPE
Remediation
| |
| redhat openshift | 3.0 |
CPE
Remediation
| |
| redhat enterprise linux | 8.0 8.1 8.4 9.0 |
CPE
Remediation
| |
| redhat enterprise linux eus | 8.2 8.4 8.6 9.0 |
CPE
Remediation
| |
| redhat enterprise linux for power little endian | 8.0 9.0 |
CPE
Remediation
| |
| redhat enterprise linux for power little endian eus | 8.2 8.4 8.6 9.0 |
CPE
Remediation
| |
| redhat enterprise linux server aus | 8.2 8.4 8.6 |
CPE
Remediation
| |
| redhat enterprise linux server for power little endian update services for sap solutions | 8.1 8.2 8.4 8.6 9.0 |
CPE
Remediation
| |
| redhat enterprise linux server tus | 8.2 8.4 8.6 |
CPE
Remediation
| |
| redhat openshift container platform | 4.6 4.9 4.10 |
CPE
Remediation
| |
| redhat codeready linux builder | All versions |
CPE
Remediation
| |
Change History
9 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Nov 21, 2024 | CVE Modified | CVE |
| May 14, 2024 | CVE Modified | [email protected] |
| Sep 13, 2023 | Reanalysis | [email protected] |
| Feb 23, 2023 | Reanalysis | [email protected] |
| Oct 28, 2022 | Modified Analysis | [email protected] |
| Sep 30, 2022 | CVE Modified | [email protected] |
| Sep 25, 2022 | CVE Modified | [email protected] |
| Jul 14, 2022 | Initial Analysis | [email protected] |