Origin Validation Error Affecting shim-ia32 package, versions <0:15.8-4.el8_9


Severity

0.0
high
0
10

    Threat Intelligence

    EPSS
    2.52% (91st percentile)

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  • Snyk ID SNYK-CENTOS8-SHIMIA32-6189223
  • published 25 Jan 2024
  • disclosed 23 Jan 2024

How to fix?

Upgrade Centos:8 shim-ia32 to version 0:15.8-4.el8_9 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream shim-ia32 package and not the shim-ia32 package as distributed by Centos. See How to fix? for Centos: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
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Snyk

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
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NVD

8.3 high
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SUSE

7.1 high
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Red Hat

8.3 high