Heap-based Buffer Overflow Affecting kernel-rt-trace-devel package, versions <0:3.10.0-327.36.1.rt56.237.el7


Severity

Recommended
high

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.04% (11th percentile)

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  • Snyk ID SNYK-CENTOS7-KERNELRTTRACEDEVEL-2068145
  • published 26 Jul 2021
  • disclosed 24 Jun 2016

How to fix?

Upgrade Centos:7 kernel-rt-trace-devel to version 0:3.10.0-327.36.1.rt56.237.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.

The IPT_SO_SET_REPLACE setsockopt implementation in the netfilter subsystem in the Linux kernel before 4.6 allows local users to cause a denial of service (out-of-bounds read) or possibly obtain sensitive information from kernel heap memory by leveraging in-container root access to provide a crafted offset value that leads to crossing a ruleset blob boundary.

References