Improper Enforcement of Behavioral Workflow Affecting kernel-rt-trace-devel package, versions <0:3.10.0-229.11.1.rt56.141.11.el7_1


Severity

0.0
medium
0
10

    Threat Intelligence

    EPSS
    0.04% (6th percentile)

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  • Snyk ID SNYK-CENTOS7-KERNELRTTRACEDEVEL-2052137
  • published 26 Jul 2021
  • disclosed 8 Apr 2015

How to fix?

Upgrade Centos:7 kernel-rt-trace-devel to version 0:3.10.0-229.11.1.rt56.141.11.el7_1 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.

include/net/netfilter/nf_conntrack_extend.h in the netfilter subsystem in the Linux kernel before 3.14.5 uses an insufficiently large data type for certain extension data, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via outbound network traffic that triggers extension loading, as demonstrated by configuring a PPTP tunnel in a NAT environment.

CVSS Scores

version 3.1
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Snyk

5.7 medium
  • Attack Vector (AV)
    Adjacent
  • 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

6.2 medium
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Red Hat

5.7 medium