ID |
CVE-2021-3697
|
Sažetak |
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. |
Reference |
|
CVSS |
Base: | 4.4 |
Impact: | 6.4 |
Exploitability: | 3.4 |
|
Pristup |
Vektor | Složenost | Autentikacija |
LOCAL |
MEDIUM |
NONE |
|
Impact |
Povjerljivost | Cjelovitost | Dostupnost |
PARTIAL |
PARTIAL |
PARTIAL |
|
CVSS vektor |
AV:L/AC:M/Au:N/C:P/I:P/A:P |
Zadnje važnije ažuriranje |
13-09-2023 - 16:15 |
Objavljeno |
06-07-2022 - 16:15 |