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Heap-based Buffer Overflow Affecting kernel package, versions <0:3.10.0-327.36.1.el7

Severity

 Recommended
high

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.04% (12th percentile)

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  • Snyk ID SNYK-RHEL7-KERNEL-5129079
  • published 26 Jul 2021
  • disclosed 24 Jun 2016
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Introduced: 24 Jun 2016

CVE-2016-4998 Open this link in a new tab
CWE-122 Open this link in a new tab

How to fix?

Upgrade RHEL:7 kernel to version 0:3.10.0-327.36.1.el7 or higher.
This issue was patched in RHSA-2016:1847.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by RHEL. See How to fix? for RHEL: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