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Cleartext Transmission of Sensitive Information Affecting kernel package, versions <0:4.14.121-109.96.amzn2

Severity

 Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-AMZN2-KERNEL-1670408
  • published27 Sept 2021
  • disclosed7 Jan 2019
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Introduced: 7 Jan 2019

CVE-2019-5489  (opens in a new tab)
CWE-319  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 kernel to version 0:4.14.121-109.96.amzn2 or higher.
This issue was patched in ALAS2-2019-1214.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

The mincore() implementation in mm/mincore.c in the Linux kernel through 4.19.13 allowed local attackers to observe page cache access patterns of other processes on the same system, potentially allowing sniffing of secret information. (Fixing this affects the output of the fincore program.) Limited remote exploitation may be possible, as demonstrated by latency differences in accessing public files from an Apache HTTP Server.

References