Access of Resource Using Incompatible Type ('Type Confusion') Affecting kernel-uek-core package, versions <0:5.15.0-8.91.4.1.el8uek


Severity

Recommended
high

Based on Oracle Linux security rating

    Threat Intelligence

    EPSS
    0.05% (15th percentile)

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  • Snyk ID SNYK-ORACLE8-KERNELUEKCORE-3364090
  • published 8 Mar 2023
  • disclosed 12 Jan 2023

How to fix?

Upgrade Oracle:8 kernel-uek-core to version 0:5.15.0-8.91.4.1.el8uek or higher.
This issue was patched in ELSA-2023-12196.

NVD Description

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

atm_tc_enqueue in net/sched/sch_atm.c in the Linux kernel through 6.1.4 allows attackers to cause a denial of service because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results).

CVSS Scores

version 3.1
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NVD

5.5 medium
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High
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SUSE

7.8 high
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Red Hat

4.2 medium