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Link Following Affecting rpm package, versions <4.18.0-r0

0.0
medium

Snyk CVSS

    Attack Complexity Low
    Privileges Required High
    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-ALPINE317-RPM-3143849
  • published 23 Nov 2022
  • disclosed 26 Aug 2022
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Introduced: 26 Aug 2022

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

How to fix?

Upgrade Alpine:3.17 rpm to version 4.18.0-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rpm package and not the rpm package as distributed by Alpine. See How to fix? for Alpine:3.17 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.