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.
Project Subscriptions
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|---|---|
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Gnu
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Grub2
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Redhat
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Codeready Linux Builder
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Enterprise Linux For Power Little Endian Eus
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Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions
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Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2021-26982 | 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. |
Ubuntu USN |
USN-6355-1 | GRUB2 vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
No history.
Projects
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2024-08-03T17:01:08.539Z
Reserved: 2021-08-10T00:00:00
Link: CVE-2021-3697
No data.
Status : Modified
Published: 2022-07-06T16:15:08.320
Modified: 2024-11-21T06:22:10.820
Link: CVE-2021-3697
OpenCVE Enrichment
No data.
Weaknesses
EUVD
Ubuntu USN