Improper Verification of Cryptographic Signature Affecting rpm-plugin-systemd-inhibit package, versions <0:4.14.3-19.el8_5.2


Severity

Recommended
0.0
medium
0
10

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.07% (34th percentile)

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  • Snyk IDSNYK-ROCKY8-RPMPLUGINSYSTEMDINHIBIT-3277649
  • published3 Feb 2023
  • disclosed22 Aug 2022

Introduced: 22 Aug 2022

CVE-2021-3521  (opens in a new tab)
CWE-347  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 rpm-plugin-systemd-inhibit to version 0:4.14.3-19.el8_5.2 or higher.
This issue was patched in RLSA-2022:0368.

NVD Description

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

There is a flaw in RPM's signature functionality. OpenPGP subkeys are associated with a primary key via a "binding signature." 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. To exploit this flaw, an attacker must either compromise an RPM repository or convince an administrator to install an untrusted RPM or public key. It is strongly recommended to only use RPMs and public keys from trusted sources.

CVSS Scores

version 3.1