UBUNTU-CVE-2021-20271

    Dashboard / Vulnerabilities / UBUNTU-CVE-2021-20271

    UBUNTU-CVE-2021-20271

    Published: 26 Mar 2021Last Modified: 22 Apr 2026
    Upstream:
    CVE-2021-20271
    Aliases:
    USN-5273-1

    Summary:

    Details: A flaw was found in RPM's signature check functionality when reading a package file. This flaw allows an attacker who can convince a victim to install a seemingly verifiable package, whose signature header was modified, to cause RPM database corruption and execute code. The highest threat from this vulnerability is to data integrity, confidentiality, and system availability.

    References: https://ubuntu.com/security/CVE-2021-20271, https://github.com/rpm-software-management/rpm/commit/d6a86b5e69e46cc283b1e06c92343319beb42e21, https://ubuntu.com/security/notices/USN-5273-1, https://www.cve.org/CVERecord?id=CVE-2021-20271

    Affected packages

    Package

    Name: rpm

    Purl: pkg:deb/ubuntu/[email protected]+esm1?arch=source&distro=trusty/esm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    4.11.1-2
    4.11.1-3
    4.11.1-3ubuntu0.1
    4.11.1-3ubuntu0.1+esm1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    UBUNTU-CVE-2021-20271 | CVE-DB