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Information Exposure Affecting perf package, versions <0:4.9.70-22.55.amzn1

Severity

 Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (13th percentile)

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  • Snyk IDSNYK-AMZN201803-PERF-1710077
  • published27 Sept 2021
  • disclosed27 Nov 2017
Report a new vulnerability Found a mistake?

Introduced: 27 Nov 2017

CVE-2017-16994  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 perf to version 0:4.9.70-22.55.amzn1 or higher.
This issue was patched in ALAS-2017-937.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

The walk_hugetlb_range function in mm/pagewalk.c in the Linux kernel before 4.14.2 mishandles holes in hugetlb ranges, which allows local users to obtain sensitive information from uninitialized kernel memory via crafted use of the mincore() system call.