Improper Locking Affecting kernel-rt-trace-devel package, versions <0:3.10.0-327.rt56.204.el7


Severity

high

    Threat Intelligence

    EPSS
    0.1% (43rd percentile)

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  • Snyk ID SNYK-CENTOS7-KERNELRTTRACEDEVEL-2056923
  • published 26 Jul 2021
  • disclosed 19 Jan 2015

How to fix?

Upgrade Centos:7 kernel-rt-trace-devel to version 0:3.10.0-327.rt56.204.el7 or higher.

NVD Description

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

Race condition in the ldsem_cmpxchg function in drivers/tty/tty_ldsem.c in the Linux kernel before 3.13-rc4-next-20131218 allows local users to cause a denial of service (ldsem_down_read and ldsem_down_write deadlock) by establishing a new tty thread during shutdown of a previous tty thread.

CVSS Scores

version 3.1
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Snyk

5.5 high
  • 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
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NVD

4.7 medium
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Red Hat

5.5 medium