Numeric Errors Affecting kernel-uek-debug package, versions <0:2.6.39-400.215.11.el5uek


Severity

high

    Threat Intelligence

    EPSS
    0.23% (62nd percentile)

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  • Snyk ID SNYK-ORACLE5-KERNELUEKDEBUG-2487142
  • published 10 Apr 2022
  • disclosed 1 Sep 2014

How to fix?

Upgrade Oracle:5 kernel-uek-debug to version 0:2.6.39-400.215.11.el5uek or higher.
This issue was patched in ELSA-2014-3082.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-debug package and not the kernel-uek-debug package as distributed by Oracle. See How to fix? for Oracle:5 relevant fixed versions and status.

The kvm_iommu_map_pages function in virt/kvm/iommu.c in the Linux kernel through 3.16.1 miscalculates the number of pages during the handling of a mapping failure, which allows guest OS users to (1) cause a denial of service (host OS memory corruption) or possibly have unspecified other impact by triggering a large gfn value or (2) cause a denial of service (host OS memory consumption) by triggering a small gfn value that leads to permanently pinned pages.

CVSS Scores

version 3.1
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Snyk

4.8 high
  • Attack Vector (AV)
    Adjacent
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High
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NVD

4.8 medium
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Red Hat

4.8 medium