Out-of-bounds Write Affecting shim package, versions <15.6-1


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.07% (31st percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-DEBIAN12-SHIM-2862815
  • published8 Jun 2022
  • disclosed20 Jul 2023

Introduced: 8 Jun 2022

CVE-2022-28737  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Debian:12 shim to version 15.6-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream shim package and not the shim package as distributed by Debian. See How to fix? for Debian:12 relevant fixed versions and status.

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.

CVSS Scores

version 3.1