CVE-2022-28737
7.8
HIGH
CVSS 3.1
EPSS 0.02%
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.
How to fix CVE-2022-28737
To remediate CVE-2022-28737, upgrade the affected package to a fixed version below.
- —upgrade to 15.6-1~deb11u1 or later
Is CVE-2022-28737 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 15.6-1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |