Buffer Overflow Affecting kernel-rt-trace-devel package, versions <0:3.10.0-1127.rt56.1093.el7


Severity

medium

    Threat Intelligence

    EPSS
    0.05% (18th percentile)

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  • Snyk ID SNYK-CENTOS7-KERNELRTTRACEDEVEL-2155022
  • published 26 Jul 2021
  • disclosed 27 Jul 2019

How to fix?

Upgrade Centos:7 kernel-rt-trace-devel to version 0:3.10.0-1127.rt56.1093.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.

In the Linux kernel before 4.1.4, a buffer overflow occurs when checking userspace params in drivers/media/dvb-frontends/cx24116.c. The maximum size for a DiSEqC command is 6, according to the userspace API. However, the code allows larger values such as 23.

CVSS Scores

version 3.1
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Snyk

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

5.5 medium
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Red Hat

3.3 low