Origin Validation Error Affecting shim-aa64 package, versions <0:15.8-2.el8_6


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    2.52% (91st 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 ID SNYK-RHEL8-SHIMAA64-6735305
  • published 30 Apr 2024
  • disclosed 23 Jan 2024

How to fix?

Upgrade RHEL:8 shim-aa64 to version 0:15.8-2.el8_6 or higher.
This issue was patched in RHSA-2024:2086.

NVD Description

Note: Versions mentioned in the description apply only to the upstream shim-aa64 package and not the shim-aa64 package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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.

CVSS Scores

version 3.1
Expand this section

NVD

8.3 high
  • Attack Vector (AV)
    Adjacent
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Changed
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
Expand this section

Red Hat

8.3 high
Expand this section

SUSE

7.1 high