Shim vulnerabilities

3 known vulnerabilities in Shim from Red Hat. 3 are rated high or critical. Each entry lists the affected versions and the release that fixes it, where the vendor has published one.

Latest first

• 7.4 High severity

  Red Hat Enterprise Linux 7: Integer Overflow or Wraparound

  CVE-2023-40548Jan 29, 2024Red Hat

  A buffer overflow was found in Shim in the 32-bit system. The overflow happens due to an addition operation involving a user-controlled value parsed from the PE binary being used by Shim. This value is further used for memory allocation operations, leading to

• 8.3 High severity

  Red Hat Enterprise Linux 7: Origin Validation Error

  CVE-2023-40547Jan 25, 2024Red HatEPSS 5.42%

  A remote code execution vulnerability was found in Shim. The Shim boot support trusts attacker-controlled values when parsing an HTTP response. This flaw allows an attacker to craft a specific malicious HTTP request, leading to a completely controlled out-of-b

• 7.8 High severity

  shim: Out-of-bounds Write

  CVE-2022-28737Jul 20, 2023Red Hat Bootloader Team

  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-bo