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NULL Pointer Dereference Affecting kernel package, versions *

Severity

 Recommended
low

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.16% (53rd percentile)

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  • Snyk ID SNYK-CENTOS7-KERNEL-1960408
  • published 26 Jul 2021
  • disclosed 19 Jan 2016
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Introduced: 19 Jan 2016

CVE-2016-2543 Open this link in a new tab
CWE-476 Open this link in a new tab

How to fix?

There is no fixed version for Centos:7 kernel.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

The snd_seq_ioctl_remove_events function in sound/core/seq/seq_clientmgr.c in the Linux kernel before 4.4.1 does not verify FIFO assignment before proceeding with FIFO clearing, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via a crafted ioctl call.

References

CVSS Scores

version 3.1
Expand this section

Red Hat

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