CVE-2021-3421

Publication date 19 May 2021

Last updated 26 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

A flaw was found in the RPM package in the read functionality. This flaw allows an attacker who can convince a victim to install a seemingly verifiable package or compromise an RPM repository, to cause RPM database corruption. The highest threat from this vulnerability is to data integrity. This flaw affects RPM versions before 4.17.0-alpha.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
rpm	25.10 questing	Not affected
	25.04 plucky	Not affected
	24.10 oracular	Not affected
	24.04 LTS noble	Not affected
	23.10 mantic	Not affected
	23.04 lunar	Not affected
	22.10 kinetic	Not affected
	22.04 LTS jammy	Not affected
	21.10 impish	Ignored end of life
	21.04 hirsute	Ignored end of life
	20.10 groovy	Ignored end of life
	20.04 LTS focal	Fixed 4.14.2.1+dfsg1-1ubuntu0.1~esm1
	18.04 LTS bionic	Fixed 4.14.1+dfsg1-2ubuntu0.1~esm1
	16.04 LTS xenial	Fixed 4.12.0.1+dfsg1-3ubuntu0.1~esm1
	14.04 LTS trusty	Vulnerable

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Notes

seth-arnold

Only debugedit and librpmio9 binary packages are in main, and triaged with view to how they are used in the build process as described in https://bugs.launchpad.net/ubuntu/+source/rpm/+bug/1913871

Severity score breakdown

Parameter	Value
Base score	5.5 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	None
Integrity impact	High
Availability impact	None
Vector	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

References

Related Ubuntu Security Notices (USN)

USN-5273-1
RPM Package Manager vulnerabilities
21 July 2022