Use After Free Affecting kernel-uek-debug package, versions <0:2.6.32-400.36.9.el5uek


Severity

high

    Threat Intelligence

    EPSS
    0.04% (11th percentile)

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  • Snyk ID SNYK-ORACLE5-KERNELUEKDEBUG-2486777
  • published 10 Apr 2022
  • disclosed 3 Jul 2014

How to fix?

Upgrade Oracle:5 kernel-uek-debug to version 0:2.6.32-400.36.9.el5uek or higher.
This issue was patched in ELSA-2014-3083.

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 snd_ctl_elem_add function in sound/core/control.c in the ALSA control implementation in the Linux kernel before 3.15.2 does not check authorization for SNDRV_CTL_IOCTL_ELEM_REPLACE commands, which allows local users to remove kernel controls and cause a denial of service (use-after-free and system crash) by leveraging /dev/snd/controlCX access for an ioctl call.

CVSS Scores

version 3.1
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Snyk

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

5.9 medium
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Red Hat

4.7 medium