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CVE PROGRAM SOURCE RECORD8.3 High

CVE-2023-40547

Shim: rce in http boot support may lead to secure boot bypass

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Status
Published
Published
Updated
Assigning organization
redhat

Description

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-bounds write primitive and complete system compromise. This flaw is only exploitable during the early boot phase, an attacker needs to perform a Man-in-the-Middle or compromise the boot server to be able to exploit this vulnerability successfully.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Red Hat Red Hat Enterprise Linux 7

Default version status: affected

  • 0:15.8-3.el7 to < *unaffected

Red Hat Red Hat Enterprise Linux 7

Default version status: affected

  • 0:15.8-1.el7 to < *unaffected

Red Hat Red Hat Enterprise Linux 8

Default version status: affected

  • 0:15.8-4.el8_9 to < *unaffected

Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support

Default version status: affected

  • 0:15.8-2.el8_2 to < *unaffected

Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service

Default version status: affected

  • 0:15.8-2.el8_2 to < *unaffected

Red Hat Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions

Default version status: affected

  • 0:15.8-2.el8_2 to < *unaffected

Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support

Default version status: affected

  • 0:15.8-2.el8_4 to < *unaffected

Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service

Default version status: affected

  • 0:15.8-2.el8_4 to < *unaffected

Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions

Default version status: affected

  • 0:15.8-2.el8_4 to < *unaffected

Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support

Default version status: affected

  • 0:15.8-2.el8_6 to < *unaffected

Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support

Default version status: affected

  • 0:15.8-2.el8 to < *unaffected

Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support

Default version status: affected

  • 0:15.8-2.el8 to < *unaffected

Red Hat Red Hat Enterprise Linux 9

Default version status: affected

  • 0:15.8-4.el9_3 to < *unaffected

Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support

Default version status: affected

  • 0:15.8-3.el9 to < *unaffected

Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support

Default version status: affected

  • 0:15.8-2.el9 to < *unaffected

Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support

Default version status: affected

  • 0:15.8-2.el9 to < *unaffected

Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support

Default version status: affected

  • 0:15.8-3.el9_2 to < *unaffected

References