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Link Following Affecting rpm-libs package, versions <0:4.14.3-28.el8_9

0.0
medium

Snyk CVSS

    Attack Complexity Low
    Privileges Required High
    User Interaction Required
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.08% (32nd percentile)
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NVD
6.7 medium
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Red Hat
6.5 medium

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  • Snyk ID SNYK-CENTOS8-RPMLIBS-1968199
  • published 26 Jul 2021
  • disclosed 30 Jun 2021
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Introduced: 30 Jun 2021

CVE-2021-35939 Open this link in a new tab
CWE-59 Open this link in a new tab

How to fix?

Upgrade Centos:8 rpm-libs to version 0:4.14.3-28.el8_9 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rpm-libs package and not the rpm-libs package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

It was found that the fix for CVE-2017-7500 and CVE-2017-7501 was incomplete: the check was only implemented for the parent directory of the file to be created. A local unprivileged user who owns another ancestor directory could potentially use this flaw to gain root privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.