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Information Exposure Affecting bpftool package, versions <0:3.10.0-1062.el7

Severity

 Recommended
0.0
high
0
10

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.04% (12th percentile)

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  • Snyk ID SNYK-CENTOS7-BPFTOOL-2137896
  • published 26 Jul 2021
  • disclosed 6 Jan 2019
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Introduced: 6 Jan 2019

CVE-2019-5489 Open this link in a new tab
CWE-200 Open this link in a new tab

How to fix?

Upgrade Centos:7 bpftool to version 0:3.10.0-1062.el7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bpftool package and not the bpftool package as distributed by Centos. See How to fix? for Centos:7 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