Improper Verification of Cryptographic Signature Affecting dnf package, versions <0:4.7.0-4.el8



    Attack Complexity High
    Privileges Required High
    User Interaction Required
    Confidentiality High
    Integrity High
    Availability High
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7.5 high
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Red Hat
6.4 medium

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  • Snyk ID SNYK-CENTOS8-DNF-2149521
  • published 26 Jul 2021
  • disclosed 16 Mar 2021

How to fix?

Upgrade Centos:8 dnf to version 0:4.7.0-4.el8 or higher.

NVD Description

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

A flaw was found in libdnf's signature verification functionality in versions before 0.60.1. This flaw allows an attacker to achieve code execution if they can alter the header information of an RPM package and then trick a user or system into installing it. The highest risk of this vulnerability is to confidentiality, integrity, as well as system availability.