CVE-2022-28737
Medium
Description
There's a possible overflow in handle_image() when shim tries to load and execute crafted EFI executables; The handle_image() function takes into account the SizeOfRawData field from each section to be loaded. An attacker can leverage this to perform out-of-bound writes into memory. Arbitrary code execution is not discarded in such scenario.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Redhat Shim
PublishedJul 20, 2023
First seenJul 20, 2023
How to fix
Update
- redhat shim15.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| redhat shim | v < 15.6 | 15.6 |
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