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.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: canonical
Published: 2023-07-20T00:26:15.627Z
Updated: 2024-08-03T06:03:52.700Z
Reserved: 2022-04-05T21:59:08.761Z
Link: CVE-2022-28737
Vulnrichment
No data.
NVD
Status : Analyzed
Published: 2023-07-20T01:15:10.473
Modified: 2023-07-28T15:33:58.493
Link: CVE-2022-28737
Redhat