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CVE-2021-20266

Publication date 30 April 2021

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

4.9 · Medium

Score breakdown

A flaw was found in RPM's hdrblobInit() in lib/header.c. This flaw allows an attacker who can modify the rpmdb to cause an out-of-bounds read. The highest threat from this vulnerability is to system availability.

Read the notes from the security team

Status

Package Ubuntu Release Status
rpm 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
21.04 hirsute Ignored
20.10 groovy Ignored
20.04 LTS focal
18.04 LTS bionic
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected

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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 4.9 · Medium
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

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

Other references