DEBIAN-CVE-2021-20225

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    DEBIAN-CVE-2021-20225

    Published: 3 Mar 2021Last Modified: 1 Sept 2026
    Upstream:
    CVE-2021-20225

    Summary:

    Details: A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

    References: https://security-tracker.debian.org/tracker/CVE-2021-20225

    Affected packages

    Package

    Name: grub2

    Purl: pkg:deb/debian/grub2?arch=source&distro=bookworm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.04-16

    Affected versions

    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
    DEBIAN-CVE-2021-20225 | CVE-DB