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Execution with Unnecessary Privileges Affecting bpftool package, versions *

Severity

 Recommended
medium

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.06% (30th percentile)

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  • Snyk ID SNYK-CENTOS7-BPFTOOL-1961608
  • published 26 Jul 2021
  • disclosed 16 Mar 2016
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Introduced: 16 Mar 2016

CVE-2016-3157 Open this link in a new tab
CWE-250 Open this link in a new tab

How to fix?

There is no fixed version for Centos:7 bpftool.

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 __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel does not properly context-switch IOPL on 64-bit PV Xen guests, which allows local guest OS users to gain privileges, cause a denial of service (guest OS crash), or obtain sensitive information by leveraging I/O port access.