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Alma Linux: CVE-2021-3521: Moderate: rpm security update (ALSA-2022-0368)

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Alma Linux: CVE-2021-3521: Moderate: rpm security update (ALSA-2022-0368)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
02/01/2022
Created
05/05/2022
Added
05/04/2022
Modified
05/13/2022

Description

There is a flaw in RPM's signature functionality. OpenPGP subkeys are associated with a primary key via a "binding signature."[1] RPM does not check the binding signature of subkeys prior to importing them. If an attacker is able to add or socially engineer another party to add a malicious subkey to a legitimate public key, RPM could wrongly trust a malicious signature. The greatest impact of this flaw is to data integrity. 1. https://tools.ietf.org/html/rfc4880#section-5.2.1

Solution(s)

  • alma-upgrade-rpm-build
  • alma-upgrade-rpm-plugin-fapolicyd

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