CVE-2022-28737: shim handle_image OOB write
CVE-2022-28737 Published on July 20, 2023
There's a possible overflow in handle_image() when shim tries to load and execute crafted EFI executables
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.
Vulnerability Analysis
CVE-2022-28737 can be exploited with local system access, requires user interaction and user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Products Associated with CVE-2022-28737
stack.watch emails you whenever new vulnerabilities are published in Red Hat Shim or Canonical Ubuntu Linux. Just hit a watch button to start following.
Affected Versions
Red Hat Bootloader Team shim:- Before 15.6 is affected.
- Before 15.6 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.