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Loop with Unreachable Exit Condition ('Infinite Loop') Affecting kernel-debug-devel package, versions <0:3.10.0-957.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-KERNELDEBUGDEVEL-1489600
  • published 26 Jul 2021
  • disclosed 30 Nov 2017
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Introduced: 30 Nov 2017

CVE-2017-18208 Open this link in a new tab
CWE-835 Open this link in a new tab

How to fix?

Upgrade RHEL:7 kernel-debug-devel to version 0:3.10.0-957.el7 or higher.
This issue was patched in RHSA-2018:3083.

NVD Description

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

The madvise_willneed function in mm/madvise.c in the Linux kernel before 4.14.4 allows local users to cause a denial of service (infinite loop) by triggering use of MADVISE_WILLNEED for a DAX mapping.