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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-3144010
  • published 23 Nov 2022
  • disclosed 25 Aug 2022
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Introduced: 25 Aug 2022

CVE-2021-35938 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.

A symbolic link issue was found in rpm. It occurs when rpm sets the desired permissions and credentials after installing a file. A local unprivileged user could use this flaw to exchange the original file with a symbolic link to a security-critical file and escalate their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.