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Improper Certificate Validation Affecting shim-ia32 package, versions *

Severity

low

    Threat Intelligence

    EPSS
    0.13% (48th percentile)

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  • Snyk ID SNYK-CENTOS8-SHIMIA32-5325822
  • published 30 Mar 2023
  • disclosed 28 Mar 2023
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Introduced: 28 Mar 2023

CVE-2023-0465 Open this link in a new tab
CWE-295 Open this link in a new tab

How to fix?

There is no fixed version for Centos:8 shim-ia32.

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.

Applications that use a non-default option when verifying certificates may be vulnerable to an attack from a malicious CA to circumvent certain checks.

Invalid certificate policies in leaf certificates are silently ignored by OpenSSL and other certificate policy checks are skipped for that certificate. A malicious CA could use this to deliberately assert invalid certificate policies in order to circumvent policy checking on the certificate altogether.

Policy processing is disabled by default but can be enabled by passing the -policy' argument to the command line utilities or by calling the X509_VERIFY_PARAM_set1_policies()' function.

CVSS Scores

version 3.1
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Snyk

5.3 low
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    Low
  • Availability (A)
    None
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NVD

5.3 medium
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SUSE

5.9 medium
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Red Hat

5.3 medium